Hydraulics & Pneumatics - Hydraulics & Pneumatics is the leading international technical resource for fluid power http://hydraulicspneumatics.com/rss.xml en What to Consider When Selecting a Hydraulic Motor http://hydraulicspneumatics.com/hydraulic-pumps-motors/what-consider-when-selecting-hydraulic-motor <div class="field-deck"> Sponsored by Eaton </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/Eaton_logo196x65.gif" style="width: 196px; height: 65px; float: right;" />What are the major considerations I need to think about when designing in (or replacing) a hydraulic motor? When considering reliability, what key design features should I look for in a motor? What bearing specifications for the motor do I have to be concerned with? If I&rsquo;ve had problems with the quality of my present hydraulic motor, are there drop-in replacements available?&nbsp;</p> <p>Download <em><strong>FAQs on What to Consider When Selecting a Hydraulic Motor</strong></em> sponsored by <strong>Eaton</strong> to get the answers.</p> <script type="text/javascript"> document.write('\ <iframe style="height: 1700px; width: 100%; border:0;” frameBorder="0" scrolling="no"\ src="http://pages.hydraulicspneumatics.com/HP_Digital_Eaton_SelectingHydraulicMotor_FAQ_JR_102116?partnerref=' + getParameterByName("partnerref") + "&elq=" + getParameterByName("elq2") + "&code=" + getParameterByName("code") + "&PK=" + getParameterByName("PK") + "&PR=" + getParameterByName("PR") + '"></iframe>'); function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); if (match == null) return ""; return match && decodeURIComponent(match[1].replace(/\+/g, ' ')); } </script></div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/what-consider-when-selecting-hydraulic-motor#comments Design FAQs Hydraulic Pumps & Motors Tue, 25 Oct 2016 19:51:00 +0000 40511 at http://hydraulicspneumatics.com How To Consolidate Your Hydraulic Oil Inventory http://hydraulicspneumatics.com/blog/how-consolidate-your-hydraulic-oil-inventory <div class="node-body blog-body"><p>How many different types of hydraulic oil are taking up space in your oil store? If there&#39;s more than one you&#39;re not alone. I often get questions from members who&#39;d like to consolidate their hydraulic oil inventory but aren&#39;t sure how to go about it. This one is typical:<br /> <br /> &quot;We have a number of pieces of hydraulic equipment e.g., bucket trucks, cranes, backhoe, rollback wrecker, dump trucks, scissors lifts, etc. It seems like each piece of hydraulic equipment requires a different hydraulic oil. I&#39;d like to know the compatibility or interchangeability of the different products before I do irreversible harm. I&#39;m confused by all the different hydraulic oil we&#39;re currently using. For example, Warren R&amp;O, Conoco MV-22, NAPA AW-46, AW-315, etc. Is there a primer on oil; a guide that tells me what goes where?&quot;&nbsp; --Bob Bauman.<br /> <br /> The first step is to decipher all the different abbreviations and numbers to understand what you&#39;ve got, so you can compare &#39;apples to apples&#39;. This task is complicated by the different standards used. And some abbreviations and numbers used by individual manufacturers aren&#39;t standard at all. So looking at Bob&#39;s array of oils:<br /> <br /> R&amp;O or RO stands for rust and oxidation - hydraulic oils with improved anti-rust and anti-oxidation properties. The ISO classification for these oils is HL. AW stands for anti-wear. These are RO hydraulic oils with an anti-wear additive package. The ISO classification for these oils is HM.<br /> <br /> MV stands for multi-viscosity. To the best of my knowledge, this is not a standard abbreviation. In theory MG (multi-grade), MW (multi-weight) or HVI (high viscosity index) could all be used to mean the same thing. Regardless, these oils contain viscosity index improvers which modify the rate of change in viscosity with temperature. The ISO classification is HR for VI improved RO oils and HV for VI improved AW oils.<br /> <br /> Now to the numbers. 22, 46 and 315 refer to the viscosity grade (VG) of the hydraulic oil. 22 and 46 are ISO standard grades and the numbers refer to the oil&#39;s kinematic viscosity in centistokes at 40 degrees Celsius - plus or minus 10 percent. So an ISO VG46 oil has a viscosity of between 41.4 and 50.6 centistokes at 40C. 315 is a now mostly obsolete ASTM viscosity number - 315 SUS at 100 degrees Fahrenheit, which is roughly equivalent to ISO VG68.<br /> <br /> As you can now see, Bob has both RO and AW hydraulic oil in three different viscosity grades - one of which is high VI. On the surface, my hunch would be that a single oil - probably AW-46, could cover his entire fleet. But to confirm this, each piece of hydraulic equipment needs to be assessed individually. The detailed procedure for doing this is explained in <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=thmh"><strong>The Hydraulic Maintenance Handbook</strong></a>.<br /> <br /> Once this has been done and the appropriate type and grade of hydraulic oil chosen, the next issue to consider is how to go about changing equipment over to the standardized oil. The first thing to understand is you ain&#39;t going to get any peace of mind from the oil companies. It&#39;s highly unlikely that any oil blender will tell you it&#39;s OK to mix their oil with a competitors. And for good reason too. When oils with different additive chemistry are mixed, there is always a risk of additive &#39;drop-out&#39;.<br /> <br /> At the very least, you should be doing a thorough oil drain and filter change as part of switching oils. But unless it&#39;s practical or possible to drain every part of the system, a small percentage of the original hydraulic oil will remain and be mixed with the new oil.<br /> <br /> So before making the switch, it&#39;s a good idea to mix equal parts of the original and new oil in a glass jar and shake vigorously. Wait half an hour and observe the solution. Look for changes in color, clarity, viscosity and sediment. If in doubt, or for extra peace of mind, filter 100 milliliters of the old, new and mixed oils through a patch filter - noting the time taken for each. If nothing abnormal is observed, then it should be safe to proceed.<br /> <br /> Be aware that mixing hydraulic oils without taking these simple precautions can be a costly mistake. And to discover six other costly mistakes you want to be sure to avoid with your hydraulic equipment, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr"><strong>get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</strong></a>.</p> </div> http://hydraulicspneumatics.com/blog/how-consolidate-your-hydraulic-oil-inventory#comments Hydraulics At Work Tue, 25 Oct 2016 00:35:00 +0000 40571 at http://hydraulicspneumatics.com FPDA Elects New Officers at Joint Annual Summit http://hydraulicspneumatics.com/news/fpda-elects-new-officers-joint-annual-summit <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/09/logo_fpda%20%281%29.png" style="width: 370px; height: 82px; margin: 3px; float: left;" />The Fluid Power Distributors Association (FPDA) announced the addition of eight new board members and officers to its Motion &amp; Control network. The elections were held last month at the annual Joint Industry Summit in Savannah, Ga.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/news/aem-releases-ag-tractor-and-combine-report ">AEM Releases Ag Tractor and Combine Report</a></p> <p><a href="http://hydraulicspneumatics.com/construction/aem-create-new-international-construction-trade-shows ">AEM to create new international construction trade shows</a></p> <p><a href="http://hydraulicspneumatics.com/blog/videos-give-tips-clutch-and-brake-installation">Videos Give Tips on Clutch and Brake Installation</a></p> </div> <p>Conducted by the FDPA and International Sealing Distribution Association (ISD), the joint convention delivers four days of education, networking, and business-development to members of the associations. This year marks the sixth annual summit.</p> <p>The following new board members and officers have been elected to the Motion &amp; Control network:</p> <p><em>FPDA Officers 2016 &shy; 2017:</em></p> <p>President &shy; Andrea Tysdal, JEM Technical Inc., Orono, Minn.</p> <p>President Elect &shy; Scott Durand, Kraft Fluid Systems Inc., Strongsville, Ohio</p> <p>Treasurer &shy; Keath Ford, Kaman Industrial Technologies Corp., Bloomfield, Conn.</p> <p>Convention Chair &shy; Taryn West, K.R. West Co. Inc., Kaukauna, Wisc.</p> <p>Young Executives Chair &shy; Daniel Starkweather, Alkon Corp, Fremont, Ohio</p> <p>Member at Large &shy; Craig Whited, Hydra-Power Systems Inc., Portland, Ore.</p> <p><em>FPDA Board Members 2016 &shy; 2019:</em></p> <p>Jeff Behling, Stauff Corp., Waldwick, N.J.</p> <p>Chris Walker, Connector Specialists Inc., St. Rose, La.</p> <p>For more information on the FPDA, visit <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.fpda.org&amp;d=DQMFAg&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=Jj1_JA8NuaJOZ0M_tl03EVaXlU3xpRTd77RNUPAL-ao&amp;m=wFSdfd9zYvgP8CxirEz7p_AWDtXpTzrPyf0G_IRxqt8&amp;s=ungfEzuw_LUEJHGa6stwD-tTNuIkvkUl2SK-BZPXSJI&amp;e=">www.fpda.org</a> or call (410) 940-6347.</p> </div> http://hydraulicspneumatics.com/news/fpda-elects-new-officers-joint-annual-summit#comments News Mon, 24 Oct 2016 14:06:00 +0000 40551 at http://hydraulicspneumatics.com Courtesy of Fluid Power Distributors Association UPS Takes Delivery of Hydraulic Hybrid Trucks http://hydraulicspneumatics.com/rail-truck-bus/ups-takes-delivery-hydraulic-hybrid-trucks <div class="field-deck"> The Lightning hybrid technology built into the Mount Denali shuttle buses has now found its way into UPS trucks. </div> <div class="node-body article-body"><p><a href="https://www.ups.com/" target="_blank">United Parcel Service Inc. (UPS)</a>, the largest package-delivery company and provider of supply-chain management solutions, announced that it has placed 50 Lightning Hybrids delivery trucks in the Chicago metro area. The hybrid systems were partially funded by <a href="http://www.drivecleanchicago.com" target="_blank">Drive Clean Chicago</a>, a program that aims to accelerate the adoption of alternative-fuel vehicles and infrastructure in Chicago.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/rail-truck-bus/hydraulic-hybrids-head-hills">Hydraulic Hybrids Head for the Hills</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hybrid-drive-transmission-surpasses-epa-standards">Hybrid-Drive Transmission Surpasses EPA Standards</a></p> <p><a href="http://hydraulicspneumatics.com/blog/wireless-control-revamps-truck-scale-loading-equipment">Wireless Control Revamps Truck-Scale Loading Equipment</a></p> </div> <p>In August 2016, UPS achieved its goal of driving 1 billion miles in its alternative-fuel and advanced-technology fleet. By employing this new technology, UPS hopes to set a new record in sustainable delivery services, and anticipates a one- to two-year return on investment (ROI) on its hybrid vehicles.</p> <p>The hybrid system by Colorado-based Lightning Hybrids converts Freightliner MT-55 trucks with gasoline engines into cleaner and more fuel-efficient delivery trucks, providing additional torque and reducing engine stress on the vehicles. The system also permits UPS trucks to keep their gasoline engines, rather than replace them with diesel engines to reduce NO<sub>x</sub> emissions, which can be an expensive proposition.</p> <p>&ldquo;We are pleased that our hydraulic hybrid is part of UPS&rsquo;s Rolling Laboratory, which represents world-class sustainable vehicle technologies,&rdquo; says Tim Reeser, CEO of Lightning Hybrids. &ldquo;We will show such a compelling ROI from these systems that we expect UPS to adopt our product on a worldwide scale. This order, along with other larger customer orders, has allowed us to reduce our price substantially, further improving ROI, making it viable even in cases without government subsidies. It is exciting to be part of their efforts to serve their customers with vehicles that support clean air in urban communities.&rdquo;</p> <p>The system is a patented, parallel hydraulic-hybrid system that eliminates the need for electric batteries, while providing safer braking with reduced emissions. The driveline incorporates a hydraulic pump and a lightweight accumulator to brake the vehicle and then send that braking energy to hydraulic accumulators, where the energy will be stored. This regenerative energy is subsequently used to provide power to the wheels and increase acceleration power.</p> <p>In 2014, UPS trialed the Lightning Hybrids with a six-month pilot program that demonstrated 100% uptime of the hybrid system, along with efficiency gains ranging from 18% to 34% and uncompromised drivability. UPS is currently conducting trials in the U.K. to eventually implement the hybrid systems.</p> <p>Lightning Hybrids designs and manufactures the hydraulic hybrid Energy Recovery System (ERS) for medium- and heavy-duty fleet vehicles. The composite hydraulic accumulators are a fraction of the cost and weight of batteries. The system can be installed on new vehicles as well as retrofitted on vehicles already in service. It is sold through a network of dealers and upfitters.</p> <p><em>For more information, go to <a href="http://www.lightninghybrids.com" target="_blank">www.lightninghybrids.com</a>, or email Bonnie Trowbridge at <a href="mailto:bonnie@lightninghybrids.com?subject=Inquiry%20from%20Hydraulics%20%26%20Pneumatics%20website">bonnie@lightninghybrids.com</a>.</em></p> </div> http://hydraulicspneumatics.com/rail-truck-bus/ups-takes-delivery-hydraulic-hybrid-trucks#comments Technologies Rail, Truck & Bus News Fri, 21 Oct 2016 20:34:00 +0000 40531 at http://hydraulicspneumatics.com <p>UPS delivery vehicles equipped with the Lightning Hybrids hydraulic Energy Recovery System (ERS) hit the road on September 26, 2016&mdash;just in time for the holiday rush. (Photo by Tyler Yadon, Lightning Hybrids)</p> October 2016 http://hydraulicspneumatics.com/hydraulics-pneumatics/2016-10-21 <div class="node-body magazine_issue-body"></div> <fieldset class="fieldgroup group-mag-teasers"> <div class="field-mag-teaser"> <a href="/news/2016-hydraulics-pneumatics-salary-career-report-industry-content-specialized-skills-can-t-hurt">2016 Hydraulics &amp; Pneumatics Salary &amp; Career Report: An Industry That Is Content, But Specialized Skills Can’t Hurt </a> <a href="/pneumatic-valves/today-s-air-valves-more-versatile-ever">Today’s Air Valves: More Versatile Than Ever</a> <a href="/events/fluid-power-takes-spotlight-pack-expo">Fluid Power Takes the Spotlight at Pack Expo</a> </div> </fieldset> <fieldset class="fieldgroup group-publication-info"><legend>Publication Info</legend> </fieldset> Fri, 21 Oct 2016 04:00:00 +0000 40521 at http://hydraulicspneumatics.com Adding Modern Advancements to Traditional Pneumatic Systems http://hydraulicspneumatics.com/pneumatic-valves/adding-modern-advancements-traditional-pneumatic-systems <div class="field-deck"> Sponsored by Festo </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/Festo-logo-262x50.gif" style="width: 200px; height: 38px; float: right;" />What are the advantages and disadvantages of traditional, hardwired, pneumatic valves? Given the disadvantages, how did the market respond? What new advancements have taken place? What is the next logical step in this progression?&nbsp;</p> <p>Download <em><strong>FAQs on Adding Modern Advancements to Traditional Pneumatic Systems</strong></em> sponsored by <strong>Festo</strong> to get the answers to these questions and more.</p> <script type="text/javascript"> document.write('\ <iframe style="height:1300px; width: 600px" frameBorder="0" scrolling="no"\ src="http://pages.machinedesign.com/MACD_Digital_Festo_PneumaticSystems_FAQ_DC_101716?partnerref=' + getParameterByName("partnerref") + "&elq=" + getParameterByName("elq2") + "&code=" + getParameterByName("code") + "&PK=" + getParameterByName("PK") + "&PR=" + getParameterByName("PR") + '"></iframe>'); function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); if (match == null) return ""; return match && decodeURIComponent(match[1].replace(/\+/g, ' ')); } </script></div> http://hydraulicspneumatics.com/pneumatic-valves/adding-modern-advancements-traditional-pneumatic-systems#comments Design FAQs Pneumatic Valves Wed, 19 Oct 2016 19:28:00 +0000 40481 at http://hydraulicspneumatics.com Hydrostatic Transmissions: Making Sense Of Case Drain Flow - Part 2 http://hydraulicspneumatics.com/blog/hydrostatic-transmissions-making-sense-case-drain-flow-part-2 <div class="node-body blog-body"><p>In this <a href="http://hydraulicspneumatics.com/blog/how-make-sense-case-drain-flow-hydrostatic-transmission">previous post on hydrostatic transmissions</a>, I outlined the theory and technique for using case drain flow to determine the condition of a hydrostatic transmission pump and motor. In response to this article, some readers thought that the function of the flushing valve warranted discussion, while others were still confused about the influence of the charge pump when determining case drain leakage. Let&#39;s consider flushing valves first.<br /> <br /> <strong>What is a flushing valve?</strong><br /> <br /> A closed-circuit flushing valve (also called a transmission valve or replenishing valve or hot oil purge valve) usually comprises a pilot operated directional control valve and a low pressure relief valve. When the hydrostatic transmission is in neutral, the directional valve is centered and the gallery to the low pressure relief valve is blocked. When the transmission is operated in either forward or reverse, the high pressure side of the transmission loop pilots the directional valve. This opens the low pressure side of the transmission loop to the relief valve gallery.<br /> <br /> <strong>What does a flushing valve do?</strong><br /> <br /> In a closed circuit, fluid from the motor outlet flows directly to the pump inlet. This means that apart from losses through internal leakage, which are made up by the charge pump, the same fluid circulates continuously between pump and motor. If the transmission is heavily loaded, the fluid circulating in the loop can overheat.<br /> <br /> The function of the flushing valve is to positively exchange the oil in the transmission loop with that in the reservoir. <a href="http://www.hydraulicsupermarket.com/hydro-tranny"><strong>You can watch a 2-minute simulation video which explains how it does this, here</strong></a><br /> <br /> A flushing valve is most effective when it is located at the motor, assuming the charge check valves are located in the transmission pump, as is the norm. When the hydrostatic transmission is in neutral, the flushing valve has no function and charge pressure is maintained by the charge relief valve in the transmission pump. When the transmission is operated in either forward or reverse, the flushing valve operates so that charge pressure in the low pressure side of the loop is maintained by the relief valve incorporated in the flushing valve. This relief valve is set around 2 bar (30 psi) lower than the charge pump relief valve located in the transmission pump.<br /> <br /> The effect of this is that cool oil drawn from the reservoir by the charge pump, charges the low pressure side of the loop through the check valve located close to the transmission pump inlet. The volume of hot oil leaving the motor outlet, that is not required to maintain charge pressure in the low pressure side of the loop, vents across the flushing valve relief into the case of the motor and back to tank, usually via the pump case.<br /> <br /> <strong>How does a flushing valve influence the process of using case drain leakage to determine the condition of a hydrostatic transmission?</strong><br /> <br /> The technique is the same as that outlined in <a href="http://hydraulicspneumatics.com/blog/how-make-sense-case-drain-flow-hydrostatic-transmission">my previous post</a>. As explained above, if a flushing valve is fitted to a transmission, it acts as the charge pump relief valve once the transmission is operated in forward or reverse. So if the flushing valve vents into the case of the motor, then it is possible to determine the condition of the pump by measuring its case drain flow, but not the motor. If the flushing valve vents into the case of pump, then it is possible to determine the condition of the motor by measuring its case drain flow, but not the pump.<br /> <br /> This reinforces the point that using case drain flows to determine the condition of the components of a hydrostatic transmission, without a thorough understanding of the circuit in question, can result in incorrect conclusions and the costly change-out of serviceable components. And to discover six other costly mistakes you want to be sure to avoid with your hydraulic equipment, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr"><strong>get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</strong></a>.</p> </div> http://hydraulicspneumatics.com/blog/hydrostatic-transmissions-making-sense-case-drain-flow-part-2#comments Hydraulics At Work Tue, 18 Oct 2016 00:31:00 +0000 40491 at http://hydraulicspneumatics.com La Electrostática, Fluidos de Nueva Generación y Soluciones http://hydraulicspneumatics.com/blog/la-electrost-tica-fluidos-de-nueva-generaci-n-y-soluciones <div class="node-body blog-body"><p class="rtejustify">Los fabricantes de fluidos hidr&aacute;ulicos le agregan aditivos (generalmente varios o un paquete de aditivos), a&nbsp;aceites base para darles las caracter&iacute;sticas que necesitan para trabajar en las condiciones extremas bajo las cuales trabajan los sistemas hidr&aacute;ulicos. Los aditivos mejoran la viscosidad, reducen la fricci&oacute;n, previenen el desgaste y permiten que el fluido tolere altas temperaturas sin oxidarse. Los aceites base Grupo I contienen arom&aacute;ticos, los cuales en su mayor&iacute;a son t&oacute;xicos, as&iacute; como tambi&eacute;n zinc, un metal pesado que promueve la resistencia al desgaste. Debido a su toxicidad y riesgo potencial sobre el medio ambiente, no cumplen con los est&aacute;ndares ambientales internacionales actuales.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac1.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac1.jpg" style="width: 250px; height: 250px; margin: 10px; float: right;" /></a>Los aceites hidr&aacute;ulicos y de lubricaci&oacute;n en los Grupos II a IV se producen con paquetes de aditivos apropiados, por lo que no contienen toxinas o carcin&oacute;genos, est&aacute;n libres de metales pesados y no contienen cenizas, lo que significa que no producen residuos luego de la combusti&oacute;n. Sin embargo, al estar libres de metales pesados, presentan una conductividad el&eacute;ctrica baja. El aceite que fluye a trav&eacute;s de filtros en un sistema hidr&aacute;ulico pueden generar descargas electrost&aacute;ticas. Se puede generar una chispa, que puede causar explosiones en el tanque o da&ntilde;ar componentes hidr&aacute;ulicos, como v&aacute;lvulas y filtros. Las chispas tambi&eacute;n pueden interferir o da&ntilde;ar componentes electr&oacute;nicos adem&aacute;s de formar dep&oacute;sitos en el aceite.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac3.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac3.jpg" style="width: 250px; height: 218px; margin: 10px; float: left;" title="Figura 1 - Estudios en laboratorios de HYDAC revelan que la ausencia de metales pesados en los fluidos ambientalmente responsables de hoy en día, permiten la acumulación de cargas electrostáticas. Las descargas que resultan en un elemento filtrante, como el mostrado arriba, rápidamente envejecen el fluido, lo que conlleva a la formación de barniz." /></a>Cuando los aceites modernos sin zinc ni cenizas se envejecen, se forman part&iacute;culas de contaminaci&oacute;n sumamente finas (de menos de 1 micr&oacute;n), que no se disuelve en el mismo y que por lo general se conoce con el nombre de barniz. Este se fija en las superficies aceitosas de los componentes, lo cual afecta negativamente su funci&oacute;n. Entre las posibles consecuencias tenemos correderas de v&aacute;lvulas tramadas, solenoides sobrecalentados, y una vida &uacute;til extremadamente corta de los elementos filtrantes.</p> <p class="rtejustify"><strong>Descargas Electrost&aacute;ticas</strong></p> <p class="rtejustify">Si dos sustancias (como por ejemplo el material de los elementos filtrantes y fluido hidr&aacute;ulico) con diferentes funciones de trabajo de electrones interact&uacute;an, los electrones en la interfase son transferidos desde el material con la funci&oacute;n m&aacute;s baja a la m&aacute;s alta. Un d&eacute;ficit de electrones existe en la interfase, lo que hace que se forme una capa de difusi&oacute;n en el fluido con una carga opuesta a la del elemento filtrante. La carga de esta capa se debilita a medida que aumenta la distancia con el elemento en cuesti&oacute;n.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac2.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac2.jpg" style="width: 250px; height: 183px; margin: 10px; float: left;" title="Figura 2 – Los fluidos del Grupo I contienen Zinc y otros metales pesados, lo que les da una conductividad mucho mayor que los de los Grupos II y III, que son ambientalmente aceptados." /></a>Cuando el aceite&nbsp;fluye, la carga se lleva aguas abajo y genera un diferencial de voltaje. Mientras m&aacute;s r&aacute;pido fluya, m&aacute;s alto ser&aacute; el voltaje. Si el mismo excede un valor l&iacute;mite, ocurre un equilibrio repentino que se manifiesta como una chispa. Sin embargo, el fluido debe presentar una baja conductividad para que esto ocurra. De otra manera, las cargas en la capa de difusi&oacute;n pueden fluir en sentido contrario e igualarse. Esto es lo que ocurre con fluidos con un alto contenido de aditivos met&aacute;licos.</p> <p class="rtejustify"><strong>Consecuencias</strong></p> <p class="rtejustify">Las consecuencias de que ocurran descargas electrost&aacute;ticas pueden ser serias. Por ejemplo, cuando la carga es llevada m&aacute;s aguas abajo por el aceite, descargas descontroladas pueden ocurrir en el reservorio. Dependiendo de la mezcla aire aceite, podr&iacute;an generarse explosiones. Adicionalmente se pueden quemar agujeros en los elementos filtrantes como resultado de las chispas.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac4.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac4.jpg" style="width: 250px; height: 200px; margin: 10px; float: right;" title="Figura 3 – Las descargas electrostáticas no solo pueden acelerar el envejecimiento del fluido hidráulico, sino también quemar agujeros en los elementos filtrantes. En la imagen se observa uno de más de 200 micrones de diámetro, que elimina la efectividad del mismo, originalmente de 3 micrones." /></a>La foto a la derecha muestra un agujero de m&aacute;s de 200 micrones de di&aacute;metro en un elemento filtrante de 3 micrones. Este agujero genera una apertura a trav&eacute;s de la cual pasan contaminantes, lo que por supuesto sacrifica la efectividad del elemento. Otros componentes en el sistema como enfriadores y v&aacute;lvulas, podr&iacute;an ser da&ntilde;ados por descargas descontroladas.</p> <p class="rtejustify">Las descargas electrost&aacute;ticas pueden adem&aacute;s causar ondas electromagn&eacute;ticas que perturban y da&ntilde;an sensores sensibles y componentes electr&oacute;nicos. &nbsp;Las descargas no solamente da&ntilde;an los componentes hidr&aacute;ulicos sino que tambi&eacute;n al aceite mismo. Las chispas rompen la integridad del fluido, form&aacute;ndose radicales libres que se polimerizan en cadenas largas. Esto como consecuencia general el efecto de barnizado.</p> <p class="rtejustify"><strong>La Soluci&oacute;n</strong></p> <p class="rtejustify">Utilizando un banco de prueba dise&ntilde;ado a la medida, ingenieros de la empresa HYDAC Filtertechnik analizaron el comportamiento electrost&aacute;tico de filtros hidr&aacute;ulicos en aceites cr&iacute;ticos. La culminaci&oacute;n de su trabajo lo representa la serie de elementos filtrantes Stat Free de HYDAC, que combate el problema de descargas electrost&aacute;ticas. Los mismos est&aacute;n dise&ntilde;ados para permitir la descarga y son dise&ntilde;ados con materiales que minimizan la generaci&oacute;n de carga entre el aceite y el flitro. No solamente eliminan las consecuencias de la carga electrost&aacute;tica, sino que tambi&eacute;n corrigen la causa ra&iacute;z.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac5.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac5.jpg" style="width: 250px; height: 184px; margin: 10px; float: left;" title="Figura 4 – Este banco de prueba de HYDAC fue diseñado y construido específicamente par analizar el comportamiento electrostático de los filtros hidráulicos. Fue crucial para el desarrollo de los elementos Stat Free, que combaten la acumulación de electrostática y disipa las cargas que ocurran." /></a>Un dise&ntilde;o que simplemente pueda descargar sin efectuar una modificaci&oacute;n en el material del elemento reduce la formaci&oacute;n de chispas, pero el aceite contin&uacute;a cargado. Las cargas en la interfase del filtro pueden disiparse, pero el fluido tiene a&uacute;n una carga m&aacute;s alta al no ocurrir estas chispas en el filtro que las neutralicen. El aceite cargado es llevado aguas abajo y descargas descontroladas son posibles en otras partes del sistema. Bajo ciertas circunstancias, esto puede causar un da&ntilde;o severo como una explosi&oacute;n en el tanque.</p> <p class="rtejustify">​<a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac6.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac6.jpg" style="width: 250px; height: 199px; margin: 10px; float: right;" title="Figura 5 – Este gráfico muestra que los elementos filtrantes convencionales hacen poco para disipar las cargas electrostáticas. Los elementos Stat Free, sin embargo, toleran descargas y previenen su acumulación." /></a>HYDAC tambi&eacute;n desarroll&oacute; sensores StatStick, los cuales miden el voltaje en el aceite aguas abajo del filtro para permitir que ingenieros de aplicaci&oacute;n o mantenimiento procedan a realizar mediciones en campo. Por ejemplo, ingenieros de HYDAC descubrieron la ocurrencia de explosiones en el tanque de un sistema de gran tama&ntilde;o luego que los filtros de respiradero se encontraron completamente quemados. Los filtros no fueron optimizados para carga electrost&aacute;tica. Se efectuaron mediciones con el StatStick, que revel&oacute; voltajes de hasta 17,000 V y descargas peligrosas en el tanque. Una vez que se colocaron elementos filtrantes Stat Free, no se detectaron descargas y el voltaje cay&oacute; a niveles de 3 V o menos.</p> <p class="rtejustify"><strong>Barniz</strong></p> <p class="rtejustify">El barniz es el producto de reacciones qu&iacute;micas en el aceite, generalmente denominadas envejecimiento del mismo. Este envejecimiento acelera significativamente cuando se presentan focos calientes (de m&aacute;s de 300 grados C) en el aceite. Las descargas electrost&aacute;ticas son frecuentemente la fuente de tales altas temperaturas. Otros focos calientes pueden ser causados por el efecto micro diesel o por componentes calientes. El resultado es siempre el mismo: las cadenas de hidrocarburos del aceite base se rompen por temperaturas locales altas. Las secciones entonces reaccionan con otros hidrocarburos, aditivos del aceite u oxigeno, generalmente formando el barniz, el cual se deposita como residuo en el sistema.</p> <p class="rtejustify">Aceites modernos en los Grupos II a IV contienen muchos aditivos que mejoran las caracter&iacute;sticas del aceite base, como el &iacute;ndice de viscosidad, protecci&oacute;n a corrosi&oacute;n, tendencia de formaci&oacute;n de espuma, caracter&iacute;sticas de adhesi&oacute;n y comportamiento de envejecimiento (antioxidantes). El envejecimiento est&aacute; afectado principalmente por dos sustancias en el paquete de aditivos: fenoles y aminas. Estas dos sustancias act&uacute;an como buscadores de radicales libres e interrumpen las reacciones qu&iacute;micas que resultan en barniz. Al hacer esto, sin embargo, se van desgastando y en caso de ocurrir esto, el envejecimiento ocurre r&aacute;pidamente.</p> <p class="rtejustify">El nivel de aminas y fenoles revela las condiciones de envejecimiento del aceite, pero no puede ser detectado utilizando m&eacute;todos de medici&oacute;n tradicionales. Nuevos m&eacute;todos, como por ejemplo el denominado RULER (Rutina de Evaluaci&oacute;n de Vida &Uacute;til Disponible por sus siglas en ingl&eacute;s), o el MPC (Colorimetr&iacute;a de Parche de Membrana igualmente por sus siglas en ingl&eacute;s), se requieren para establecer las condiciones de oxidaci&oacute;n del aceite. La prueba RULER compara el nivel de antioxidantes en una muestra con aqu&eacute;l del aceite nuevo para as&iacute; determinar la vida &uacute;til que le queda al aceite.</p> <p class="rtejustify"><strong>Consecuencias</strong>&nbsp;-&nbsp;Las consecuencias de la acumulaci&oacute;n de barniz en el aceite por un envejecimiento prematuro, var&iacute;a dependiendo de donde se forman estos dep&oacute;sitos. Por ejemplo, dep&oacute;sitos en el reservorio puede que no impliquen problemas inmediatos, pero podr&iacute;an afectar el desempe&ntilde;o de los componentes aguas abajo. Ahora, barniz en v&aacute;lvulas puede causar que las correderas se tramen, causando problemas operativos y fallas prematuras de componentes. Adem&aacute;s, el barniz es una sustancia suave insoluble, que puede tapar filtros hidr&aacute;ulicos, generalmente en horas. Si el nivel de antioxidantes se encuentra por debajo de 60% a 80%, se recomienda efectuar un cambio de aceite completo.</p> <p class="rtejustify"><strong>Soluci&oacute;n -&nbsp;</strong><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac7.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2012/06/Hydac7.jpg" style="width: 250px; height: 187px; margin: 10px; float: left;" title="Figura 6 – Este filtro de respiradero de un sistema hidráulico de tamaño considerable muestra evidencias de haber sido quemado por descargas electrostáticas. Las pruebas mostraron que ascendían a los 17,000 Voltios. Luego de instalar los elementos Stat Free, no se detectaron descargas electrostáticas y se midieron a 3 Voltios o menos." /></a><span style="font-size: 12.8px;">S</span><span style="font-size: 12.8px;">i este u otros problemas existen en un sistema hidr&aacute;ulico, filtros especiales pueden ser especificados para aliviar el problema. El </span>HYDAC<span style="font-size: 12.8px;"> IXU por ejemplo se diferencia de filtros convencionales en que es un filtro qu&iacute;m</span><span style="font-size: 12.8px;">i</span><span style="font-size: 12.8px;">co, no mec&aacute;nico. El aceite fluye por una resina que absorbe los productos de oxidaci&oacute;n del aceite, </span>removi&eacute;ndolos<span style="font-size: 12.8px;"> efectivamente del sistema.</span></p> <p class="rtejustify">Sin embargo, estos filtros tratan el s&iacute;ntoma, no la causa &ndash; la formaci&oacute;n de elementos de oxidaci&oacute;n en el aceite. Los elementos Stat Free pueden ser utilizados para combatir el envejecimiento prematuro. Al ser electrost&aacute;ticamente optimizados, previenen descargas en el aceite y as&iacute; la formaci&oacute;n de elementos de envejecimiento en el mismo. Tambi&eacute;n, dependiendo del sistema, el bajar la temperatura del aceite puede reducir considerablemente la oxidaci&oacute;n del mismo.</p> <p class="rtejustify">Para prevenir que se deteriore la condici&oacute;n del aceite, se deben efectuar an&aacute;lisis de muestras &nbsp;con regularidad. Al combinar esta acci&oacute;n con un monitoreo continuo se obtiene a&uacute;n una mayor efectividad en el monitoreo de la condici&oacute;n.</p> <p><em>Art&iacute;culo originalmente escrito por Frank Oberli, Gerente General de HYDAC Filtertechnik en Sulzbach, Alemania. Para mayor informaci&oacute;n, favor visite <a href="http://www.hydacusa.com">www.hydacusa.com</a>.</em></p> <p><em style="color: rgb(51, 51, 51); font-family: Georgia, Times, &quot;Times New Roman&quot;, serif; font-size: 15px;">Para mayor informaci&oacute;n en Espa&ntilde;ol, incluyendo los elementos filtrantes Stat Free de HYDAC,&nbsp;puede contactar a Ricardo Sol&oacute;rzano a&nbsp;<a href="mailto:rsolorzano@eemtechnologies.com?subject=Pregunta%20sobre%20art%C3%ADculo%20en%20H%26P" style="color: rgb(14, 95, 139);">r</a><a href="mailto:rsolorzano@eemtechnologies.com?subject=Pregunta%20sobre%20art%C3%ADculo%20en%20H%26P" style="color: rgb(14, 95, 139);">solorzano</a><a href="mailto:rsolorzano@eemtechnologies.com?subject=Pregunta%20sobre%20art%C3%ADculo%20en%20H%26P" style="color: rgb(14, 95, 139);">@eemtechnologies.com</a>, (855)462-7633,&nbsp;<a href="http://www.eemtechnologies.com/" style="color: rgb(14, 95, 139);">www.eemtechnologies.com</a>.</em></p> </div> http://hydraulicspneumatics.com/blog/la-electrost-tica-fluidos-de-nueva-generaci-n-y-soluciones#comments Hydraulic Filters Hydraulic Fluids H&amp;P en tu idioma! Mon, 17 Oct 2016 12:00:00 +0000 40471 at http://hydraulicspneumatics.com Komatsu Announces Acquisition of Joy Global At MINExpo http://hydraulicspneumatics.com/mining/komatsu-announces-acquisition-joy-global-minexpo <div class="node-body article-body"><p>At MINExpo&nbsp;2016 in Las Vegas, Tetsuji (Ted) Ohashi,&nbsp;President and&nbsp;CEO of Komatsu&nbsp;Ltd. and&nbsp;Ted Doheny, President and CEO of&nbsp;Joy Global met to discuss the decision for Komatsu&nbsp;to acquire Joy Global. The transaction is expected to be finalized by mid 2017, and to broaden the product range offered by Komatsu&nbsp;to its customers&nbsp;for mining and construction applications.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/mining/new-komatsu-vp-promises-pursuit-progressive-tech">New Komatsu VP Promises Pursuit of Progressive Tech </a></p> <p><a href="http://hydraulicspneumatics.com/200/IndZone/Construction/Article/False/7142/IndZone-Construction">All about Komatsu&#39;s latest crush </a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-filters/industrial-growth-partners-acquires-des-case-corp">Industrial Growth Partners Acquires Des-Case Corp</a></p> </div> <p>In addition to a broader line of&nbsp;equipment for drilling, earth-moving,&nbsp;loading, and hauling systems used for underground and surface mining, the partnership will enhance global customer support.&nbsp;&ldquo;Our customers are sharing very positive feedback about the agreement. Some have approached us at MINExpo to congratulate us on our decision,&rdquo; Ohashi said. &ldquo;We are working closely with Joy Global and relevant authorities to move the process forward.&rdquo;&nbsp;</p> <p>&ldquo;Many of our customers and other business partners see the benefit of combining companies: a broader offering of products, systems and solutions across a wider scope of mining and construction applications,&rdquo; Doheny said. &ldquo;Both companies believe in having the best products, direct service, being operationally excellent, and having the best people in the world.&rdquo;</p> </div> http://hydraulicspneumatics.com/mining/komatsu-announces-acquisition-joy-global-minexpo#comments Mining News Thu, 13 Oct 2016 20:18:00 +0000 40461 at http://hydraulicspneumatics.com <p>Ted&nbsp;<span data-scayt-lang="en_US" data-scayt-word="Ohashi">Ohashi (left) and T</span>ed&nbsp;<span data-scayt-lang="en_US" data-scayt-word="Doheny">Doheny shake hands over the acquisition of Joy Global by Komatsu.</span></p> Hydraulic Fan Drive Keeps Engine Cool and Efficient http://hydraulicspneumatics.com/cylinders-actuators/hydraulic-fan-drive-keeps-engine-cool-and-efficient <div class="node-body article-body"><p><img alt="Fig. 1" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Tigercat-870C.WEB_.jpg" style="width: 595px; height: 384px;" title="Tigercat’s 860C and 870C series feller bunchers use a reversible, variable-speed hydraulic fan drive to maximize fuel efficiency by keeping engine coolant within a narrow temperature range. " /></p> <p>Feller bunchers use hydraulically actuated grippers to secure a tree trunk, employ a hydraulic motor powering a saw to cut the trunk near the ground, and finally use hydraulic cylinders to pull the trunk past blades that cut branches from the trunk. <a href="http://www.tigercat.com" target="_blank">Tigercat International Inc.</a>, Brantford, Ont., Canada, builds feller bunchers and a wide variety of forestry and other off-highway equipment that make extensive use of hydraulics.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/gallery/product-gallery-beat-heat-oil-cooler">Product Gallery: Beat the Heat with an Oil Cooler</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-power-conditioning">Hydraulic-Electric Analogies: Power Conditioning</a></p> <p><a href="http://hydraulicspneumatics.com/heat-exchangers/how-select-mobile-hydraulic-heat-exchanger">How to Select a Mobile Hydraulic Heat Exchanger</a></p> </div> <p>Tigercat&rsquo;s 860C and 870C series feller bunchers, for example, incorporate variable-speed hydraulic fan drives to maintain engine coolant within a narrow band of temperatures. Keeping coolant to within a few degrees of the engine&rsquo;s optimum operating temperature ensures that the engine operates at peak fuel efficiency&mdash;even&nbsp;with varying loads and wide swings ambient temperature.</p> <p>Because it&rsquo;s driven by a hydraulic motor instead of the engine&rsquo;s belt drive, the radiator can be placed anywhere on the machine. Therefore, designers located the radiator at the back of the machine, well away from the dirt and debris generated at the saw discharge area. Furthermore, the fan motor is bidirectional, so automatically reversing the air flow through the radiator keeps it clear of dirt and debris that would otherwise block cooling air flow.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> <div>&nbsp;</div> </div> http://hydraulicspneumatics.com/cylinders-actuators/hydraulic-fan-drive-keeps-engine-cool-and-efficient#comments Cylinders & Actuators Wed, 12 Oct 2016 16:06:00 +0000 40451 at http://hydraulicspneumatics.com Use Your iPhone to Analyze Vibration http://hydraulicspneumatics.com/other-technologies/use-your-iphone-analyze-vibration <div class="node-body article-body"><p><img alt="The VibroChecker Pro" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/ACE-VibroChecker-Pro1WEB.jpg" style="width: 595px; height: 397px;" title="The Vibrochecker Pro app from ACE Controls, lets you use your iPhone (shown here with an optional third-party accelerometer and USB cable) to measure and record machine vibration." /></p> <p>Downloadable apps have made smartphones and tablets more versatile, primarily through advanced data management. But more and more apps tap into some of the more physical capabilities of smartphones. Such is the case with the&nbsp;<a href="http://bit.ly/HP1610" target="_blank">VibroChecker Pro</a> native iOS app, which turns iPhones and iPads into professional vibration and impact-measuring devices. Offered by <a href="http://sourceesb.com/acecontrols/distributors-and-vendors" target="_blank">ACE Controls</a>, Farmington Hills, Mich., VibroChecker Pro provides users with a high-performance, lightweight alternative to more costly dedicated instruments.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/muscle-powered-hydraulics-features-position-feedback">Muscle-Powered Hydraulics Features Position Feedback</a></p> <p><a href="http://hydraulicspneumatics.com/accumulators/maintenance-free-accumulators-flying-high">Maintenance-Free Accumulators Flying High</a></p> <p><a href=" http://hydraulicspneumatics.com/cylinders-actuators/sensor-choices-pneumatic-cylinder-positioning">Sensor Choices for Pneumatic Cylinder Positioning</a></p> </div> <p>ACE&rsquo;s original VibroChecker app uses the acceleration sensors, gyroscopes, and microphones integrated in the iPhone and iPad to measure vibration frequencies ranging up to 50 Hz on machines and components. The new Pro version of the app increases that range up to 8,000 Hz. The user simply has to connect&nbsp;an external USB sensor (available from a third party) to the iOS device via the lightning port and an adaptor.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/other-technologies/use-your-iphone-analyze-vibration#comments Other Technologies Wed, 12 Oct 2016 13:59:00 +0000 40441 at http://hydraulicspneumatics.com Our Second Time Around http://hydraulicspneumatics.com/news/our-second-time-around <div class="node-body article-body"><p><img alt="Salary and Career Report" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Jeremy-Promo%20-%20Copy.gif" style="width: 595px; height: 335px;" /></p> <p>Now in its second year, our <a href="http://hydraulicspneumatics.com/news/2016-hydraulics-pneumatics-salary-career-report-industry-content-specialized-skills-can-t-hurt" target="_blank">Salary and Career Report</a>&nbsp;has become one of my favorite articles&mdash;not because I like going over all the facts and figures, but because it requires very little work on my part. About all I had to do was look over the semi-finished product.</p> <p>The report is conducted by people at Penton who I&rsquo;ve never met, and the results are sent to other editors to convert raw data into something more readable. And of course Group Design Director Tony Vitolo has the task of taking all these words and numbers and converting them into eye-catching and meaningful infographics. I don&rsquo;t even have to write the introduction. That was handled by Staff Editor Leah Scully, who probably did a better job than I could have (despite the fact that I&rsquo;ve worked on <em>H&amp;P</em> about 15 times as long as she has).</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/news/2016-hydraulics-pneumatics-salary-career-report-industry-content-specialized-skills-can-t-hurt">2016 Hydraulics &amp; Pneumatics Salary &amp; Career Report: An Industry That Is Content, But Specialized Skills Can&rsquo;t Hurt</a></p> <p><a href="http://hydraulicspneumatics.com/salarysurvey">2015 Engineering Salary Survey: Compensation Is Just the Beginning</a></p> <p><a href="http://hydraulicspneumatics.com/news/bridging-gap-between-education-and-advanced-manufacturing">Bridging the Gap Between Education and Advanced Manufacturing</a></p> </div> <p>What I find interesting is how you can play with the numbers. In last year&rsquo;s report, for example, 38% of the respondents reported having served in the fluid power industry for 30 years or more. This year, 34.9% topped 30 years. So you could argue that about 8% of the workforce either retired or otherwise left the fluid power profession. On the other hand, I&rsquo;m sure some who took the survey last year didn&rsquo;t this year. Likewise, some took it for the first time this year. So the small difference is probably just deviation.</p> <p>The deviation is probably most evident in the geographic summary. The percentage of participants from Ohio, Michigan, Pennsylvania, and Texas were all within 1% of last year&rsquo;s numbers. However, numbers from California Minnesota, and Illinois dropped by 1%. I don&rsquo;t think the number of jobs in fluid power varies that much, but the locations of those who participate certainly can.</p> <p>One final note:&nbsp;If you&rsquo;d like to compare this year&rsquo;s numbers with last year&rsquo;s, you can still view and download the <a href="http://hydraulicspneumatics.com/salarysurvey" target="_blank">2015 report</a>.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/news/our-second-time-around#comments News Tue, 11 Oct 2016 18:45:00 +0000 40401 at http://hydraulicspneumatics.com Smart Cylinders Now Know What They Are http://hydraulicspneumatics.com/cylinders-actuators/smart-cylinders-now-know-what-they-are <div class="node-body article-body"><p><img alt="Milwaukee Cylinder " src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Mil-Cyl-RFID.FIG_.jpg" style="width: 300px; height: 310px; margin: 5px; float: left;" title="Milwaukee Cylinder now offers an RFID option for tie-rod cylinders. A passive RFID tag contains detailed data about the cylinder and also lets technicians keep a log of maintenance performed." />The term &quot;smart cylinder&quot;&nbsp;has been in use for decades. It refers to a hydraulic or pneumatic cylinder containing some sort of measuring device that provides electronic feedback of the cylinder&rsquo;s piston position. Most cylinder suppliers provide electronic feedback as an option, and it&rsquo;s up to the buyer to decide which type of measuring device is most suitable for the application at hand. So a smart cylinder can tell you its stroke position, but nothing about the cylinder itself.</p> <p>Yet, being able to instantly identify specifics about a cylinder is important when repairs are needed. For example, if a cylinder&rsquo;s rod seals are leaking, you normally want to have a new seal kit on hand before even starting to dismantle a machine. However, when the machine has been in use for years&mdash;especially in a dirty environment&mdash;it&#39;s often difficult obtaining specifications about a cylinder or where it came from. The cylinder&#39;s nameplate may be missing or damaged beyond legibility. Or the cylinder might be buried so deep within a machine that you can&rsquo;t even see the nameplate.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/cylinders-actuators/roadkill-retriever-relies-hydraulics">Roadkill Retriever Relies on Hydraulics</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-filters/hydraulic-electric-analogies-fluid-and-electronic-filters">Hydraulic-Electric Analogies: Fluid and Electronic Filters</a></p> <p><a href="http://hydraulicspneumatics.com/pneumatic-valves/today-s-air-valves-more-versatile-ever">Today&rsquo;s Air Valves: More Versatile Than Ever</a></p> </div> <p><a href="http://www.milwaukeecylinder.com" target="_blank">Milwaukee Cylinder</a>, Cudahy, Wis., overcomes these limitations by incorporating industrial-grade RFID tags as an option for their tie-rod cylinders. The RFID tags not only make it easy to identify the cylinder, but each tag contains detailed information to track and maintain the cylinder. A standard RFID reader is then used to acquire information such as (but not limited to) serial number, date of manufacture, part number, customer part number, pressure rating, bore, stroke, repair kit information, and more.</p> <p>The tag even lets technicians create a maintenance log for the cylinder, such as when seals were replaced. Douglas Lacina, engineering leader at Milwaukee Cylinder, explains that the RFID tags store critical information (such as numbers and specifications) as read-only data. However, part of the tag is configured as rewritable, allowing technicians to record a maintenance log. He says the tags are passive, meaning that the RFID reader must be relatively close to the tag. So if a machine contains several cylinders in close proximity to each other, the passive RFID tag helps users distinguish readings from one cylinder to another.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/cylinders-actuators/smart-cylinders-now-know-what-they-are#comments Cylinders & Actuators Tue, 11 Oct 2016 16:35:00 +0000 40421 at http://hydraulicspneumatics.com 2016 Hydraulics & Pneumatics Salary & Career Report: An Industry That Is Content, But Specialized Skills Can’t Hurt http://hydraulicspneumatics.com/news/2016-hydraulics-pneumatics-salary-career-report-industry-content-specialized-skills-can-t-hurt <div class="field-byline"> Leah Scully </div> <div class="field-deck"> More than 1,500 fluid-power engineers and professionals from across the country participated in the Hydraulics & Pneumatics 2016 Salary and Career Report. </div> <div class="node-body article-body"><p><a href="http://hydraulicspneumatics.com/datasheet/download-2016-annual-salary-career-report-pdf"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/click-button.gif" style="width: 595px; height: 96px;" /></a></p> <p>More than 1,500 fluid-power engineers and professionals from across the country participated in the <em>Hydraulics &amp; Pneumatics </em>2016 Salary and Career Report, providing insight about changes in the industry, compensation, and overall job satisfaction. The average annual salary increased by 3%&mdash;which&nbsp; has been the average income increase since 2014, according to consulting firm Towers Watson&mdash;for a final amount of $95,167. While 49.4% of respondents report an increase in salary since last year, 37% said theirs stayed the same.</p> <div class="related-content"> <div class="related-label">Related Content</div> <p><a href="http://hydraulicspneumatics.com/salarysurvey">2015 Engineering Salary Survey: Compensation Is Just the Beginning</a></p> <p><a href="http://hydraulicspneumatics.com/news/our-second-time-around">Our Second Time Around</a></p> <p><a href="http://hydraulicspneumatics.com/news/bridging-gap-between-education-and-advanced-manufacturing">Bridging the Gap Between Education and Advanced Manufacturing</a></p> </div> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/JobSatisfaction2.gif" style="width: 350px; height: 191px; float: left; margin-top: 6px; margin-bottom: 6px;" />Nearly 90% of respondents recommend fluid-power engineering to the young professional. Some claim that fluid-power skills and knowledge are in high demand in various industries from mobile equipment to aerospace, and will open opportunities for technician, engineering, and sales careers. Others recognize it as a niche industry where skilled workers will most often find a role, but should only pursue one if they have a passion or affinity for fluid power. Only 74% think that the potential for salary advancement is as promising as it was five years ago.</p> <p>Others recommend that fluid-power engineers develop skills in other areas that are becoming increasingly integrated into fluid-power systems. These include skills in industrial electronic controls, PLC programming, and BUS/Ethernet communications. One design and development engineer says, &ldquo;Instead of just recommending hydraulic components, a big part of my job is designing and developing the control software to work with the hydraulics.&rdquo;</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Salary-Changes.gif" style="width: 320px; height: 276px; float: left; margin-top: 6px; margin-bottom: 6px;" />The survey also measures the industry&rsquo;s participation in the Internet of Things (IoT), in which machinery and components may output continuous data for monitoring or collaborative behavior with other machines. Although more than a third of respondents say their companies are replacing older devices with interconnected ones, only 34% of this sample looks for engineers that can help develop products for the IoT. Half say their company hires systems engineers, and a quarter says their company hires digital specialists. In addition, only 33% of companies that adopt interconnected devices provide training for IoT systems, which may feed into one of the longstanding challenges of engineering:&nbsp;staying current on new and emerging technologies.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/dollarQuote.gif" style="width: 350px; height: 110px; float: left; margin-top: 6px; margin-bottom: 6px;" /></p> <p>Nearly half of respondents say their company currently outsources work, mostly because they lack in-house services and want to make use of existing engineering resources. Three quarters of respondents say their companies participate in onshore outsourcing, while a quarter reports outsourcing to India, and 11% to China. The most outsourced work is manufacturing and assembly, followed by CAD/CAE, and software engineering/development.</p> <p>The sample is split into thirds when it comes to optimistic, pessimistic, and neutral outlooks on the health of the economy. &quot;Election year brings uncertainty with company spending. I think it will be a harder year for companies to invest in machinery until a clear path is known from the government on taxes/spending,&quot; says one commenter.</p> <p><a href="http://hydraulicspneumatics.com/datasheet/download-2016-annual-salary-career-report-pdf"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Online-Sidebar.gif" style="width: 595px; height: 390px;" /></a></p> <p><a href="http://sourceesb.com/" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/06/28/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 595px; height: 46px;" /></a></p> <p>&nbsp;</p> </div> http://hydraulicspneumatics.com/news/2016-hydraulics-pneumatics-salary-career-report-industry-content-specialized-skills-can-t-hurt#comments News Community Tue, 11 Oct 2016 14:39:00 +0000 40431 at http://hydraulicspneumatics.com Roadkill Retriever Relies on Hydraulics http://hydraulicspneumatics.com/cylinders-actuators/roadkill-retriever-relies-hydraulics <div class="node-body article-body"><p><img alt="The S6-WSK" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Perkins-lead.WEB_.jpg" style="width: 595px; height: 378px;" title="The S6-WSK from Perkins Mfg. is designed to pick up and dispose of large animal carcasses that are too big or heavy to be handled manually. Hydraulics provides the power to handle this undesirable task with ease. " /></p> <p>Talk about a niche market. It&rsquo;s not unusual to see a raccoon, opossum, or other dead animal on the side of the road as you travel our nation&rsquo;s highways. In most cases, ridding the landscape of these carcasses poses no great challenge. A crew of one can simply drive to the site, scoop up the roadkill with a shovel, and toss the critter into a waste receptacle.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/86390/TechZone-HydraulicPumpsM">Designing for Shock and Violence</a></p> <p><a href="http://hydraulicspneumatics.com/waste-management/trash-compactor-designed-efficiency">Trash Compactor is Designed for Efficiency</a></p> <p><a href="http://hydraulicspneumatics.com/200/IndZone/RailTrucking/Article/False/87865/IndZone-RailTrucking">Hydraulic System Makes Refuse Truck Quick, Quiet, and Efficient</a></p> </div> <p>But what if the animal is too big or heavy to scoop up with a shovel? Deer fall into this category, but depending on their location, highway workers might also have to deal with disposing of elk, caribou, and even bears. That&rsquo;s where the model S6-WSH disposal unit comes in handy.</p> <p>Designed and manufactured by <strong><a href="http://www.perkinsmfg.com" target="_blank">Perkins Mfg. Corp.</a></strong>, Bolingbrook, Ill., the S6-WSK&nbsp;consists of a 6-yd<sup>3</sup> dumpster that fits into a standard pickup truck bed. The dumpster has two doors that can be opened and closed by hydraulic cylinders.</p> <p><img alt="Isolated unit" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Isolated%20unit%202.JPG" style="width: 300px; height: 277px; margin: 5px; float: left;" title="This isolated view shows the workings of the S6-WSK, including some of the hydraulic cylinders that lift the doors and the bucket assembly." />However, the business part of the S6-WSK is its shovel. The shovel is actuated by a pair of hydraulic cylinders and mechanical linkages that move it to ground level for easy loading of the animal. The shovel can lift loads weighing up to 1,200 lb. from a hydraulic working pressure of 2,100 psi. The hydraulic power unit is sized to provide a 16-sec cycle time&mdash;fast enough for quick operation at a safe speed.</p> <p>Designed by Carlos Arrez, of Perkins, the S6-WSK comes with manually operated hydraulic directional valves mounted at the rear of the unit. An operator can open and close either of two doors on the dumpster from this valve station. After opening a door, the operator actuates a valve to raise the shovel, which pivots 50 deg. to drop animal into the dumpster. Once the operator closes the doors, the hydraulic cylinders ensure that they stay closed.</p> <p>Perkins also offers optional remote controls for the S6-WSK that can be mounted in the vehicle cab or provide wireless remote control. Jimmy Rimsa, a design engineer at the firm, points out the S6-WSK doesn&rsquo;t have to be used only for roadkill. It can also handle tree stumps and other landscaping, along with construction waste, trash, and other loose materials.</p> <p>He says that because the S6-WSK attaches to the bed of a standard pickup truck, it can be removed when not in use. And because the vehicle is a standard pickup, it can be deployed in areas too narrow or rugged for a garbage truck.</p> <p>Rimsa also acknowledges that the unusual application of the S6-WSK is somewhat of a novelty and drew a lot of attention at <strong><a href="http://www.wasteexpo.com" target="_blank">Waste Expo</a></strong> 2016. But, he says the goal was to showcase the S6-WSK as just one example of the custom-built machines Perkins Mfg. is known for&mdash;in addition to its extensive line of standard industrial and vehicle-mounted products powered by both hydraulics and pneumatics. Visit <strong><a href="http://www.perkinsmfg.com/" target="_blank">www.perkinsmfg.com</a></strong> for more information on their products, services, and capabilities.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/cylinders-actuators/roadkill-retriever-relies-hydraulics#comments Cylinders & Actuators Tue, 11 Oct 2016 14:33:00 +0000 40411 at http://hydraulicspneumatics.com How To Add Hydraulic Oil - Without The Dirt http://hydraulicspneumatics.com/blog/how-add-hydraulic-oil-without-dirt <div class="node-body blog-body"><p>Hydraulic fluid straight from the drum, has a typical cleanliness level of ISO 4406 23/21/18. A 25 GPM pump operating continuously in hydraulic oil at this cleanliness level will circulate 3,500 pounds of dirt, on an accumulative basis, to the hydraulic system&#39;s components each year!<br /> <br /> So to add hydraulic oil, and not the dirt, always filter new oil prior to use in a hydraulic system.<br /> <br /> This can be accomplished by pumping the oil into the hydraulic reservoir using a filter cart. OR, if a filter cart is not available, or it&#39;s not practical to use one, the oil can be pumped into the reservoir via the hydraulic system&#39;s return filter. The easiest way to do this is to install a tee in the return line and attach a quick-connector to the branch of this tee. Attach the other half of the quick-connector to the discharge hose of a drum pump.<br /> <br /> When hydraulic oil needs to be added to the reservoir, the drum pump is coupled to the return line and the oil is pumped into the reservoir through the return filter. As well as filtering the oil, spills are avoided and the ingress of external contamination is prevented. For the majority of hydraulic systems, the benefits of carrying out this simple modification are well worth the minor cost involved.<br /> <br /> In summary, adding unfiltered oil to a hydraulic system is a mistake. Even if it&#39;s NEW oil. And to discover six other costly mistakes you want to be sure to avoid with your hydraulic equipment, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr"><strong>get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</strong></a>.</p> </div> http://hydraulicspneumatics.com/blog/how-add-hydraulic-oil-without-dirt#comments Hydraulics At Work Tue, 11 Oct 2016 00:33:00 +0000 40391 at http://hydraulicspneumatics.com Fluid Power Takes the Spotlight at Pack Expo http://hydraulicspneumatics.com/events/fluid-power-takes-spotlight-pack-expo <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/2016-Pack-Expo-logo-H_web.jpg" style="width: 595px; height: 256px;" /></p> <p>More than 30 major fluid-power companies will be exhibiting at the 13th annual <a href="http://www.packexpointernational.com" target="_blank">Pack Expo</a>, showcasing components, solutions, and full-scale hydraulic and pneumatic systems used in vertical packaging and processing markets. Representatives will be available to brainstorm and build business relationships aimed toward optimizing factory operations in food and beverage, electronics, cosmetics, textiles, and other consumer-goods industries. With more than 2400 exhibitors overall in addition to 50,000 attendees, Pack Expo represents the largest international processing and packaging tradeshow in 2016. It will convene at McCormick Place in Chicago, Illinois from November 6-9.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/packexpo-international-2016">PackExpo International 2016</a></p> <p><a href="http:/hydraulicspneumatics.com/packaging/pack-your-bags-pack-expo-2015">Pack Your Bags for Pack Expo 2015</a></p> <p><a href="http://hydraulicspneumatics.com/events/chicago-hosts-pack-expo-2014">Chicago Hosts Pack Expo 2014</a></p> </div> <p>Fluid-power systems play an integral role in sensitive processing and packaging operations due to their robustness to heavy-shock loading, high power density, and ability to transfer power through low-friction hoses to remote operations. Pneumatic systems are useful for creating tight seals in packaging applications, and controlling several systems via manifolds from a single reservoir.</p> <p>Companies on the show floor will be available to address solutions such as housing equipment to protect against high-acid wash-down environments, bio-degradable and non-toxic lubricants and fluids, and venting systems to prevent contamination of goods. In addition to maintenance, repair, and operation (MRO) replacement parts, the Pack Expo will also serve as a center for the latest available electronics and controls aimed at new and existing fluid-power systems.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/Pack-Expo-Crowd02_web.jpg" style="width: 595px; height: 259px;" /></p> <p>The Pack Expo separates into four pavilions: <em>Containers and Materials</em>, <em>Confectionary</em>, <em>Processing</em>, and <em>Reusable Packaging</em>. A mobile planner is available on the Pack Expo website so that visitors can manage their schedule and visit booths of interest at all four pavilions. Complimentary shuttle buses will run between McCormick Place and designated hotels during certain time windows every 15 to 20 minutes.</p> <p>Each day of the show, visitors can attend educational sessions at the aptly named Innovation Stage. Sessions will consist of 30-minute seminars presented by suppliers that introduce their latest technologies, systems, and strategies for the processing and packaging industries. Main themes of the sessions include &ldquo;smart&rdquo; packaging through cloud-based and Internet of Things systems, troubleshooting techniques, sustainability, safety, and other trends to streamline operations.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/VegasPreview-hydraulic-robotic-arm_web.jpg" style="width: 595px; height: 397px;" title="Fluid-power actuation is abundant in many vertical markets throughout the processing and packaging industry. Attendees can learn how fluid-power systems are able to optimize the holding power of robotic arms or create air-tight seals. " /></p> <p>Additional educational opportunities offered at Pack Expo include certified-trainer workshops for service technicians, service and training managers, maintenance technicians, internal trainers, and line supervisors. A risk-assessment workshop will also be on the premises, in addition to a NextGen Networking Fair at the Education &amp; Workforce Pavilion on Nov. 6.</p> <p>Furthermore, Pack Expo reaches out to women in packaging and processing industries by hosting an Industry Networking Breakfast for Women. This will take place&nbsp;at Meeting Room E-450 in the Upper Lakeside Center from 7:00 am &ndash; 9:00 am.</p> <p>To register for Pack Expo, go to the <a href="http://www.packexpointernational.com" target="_blank">website</a> and click &ldquo;Register Now&rdquo; under the Attend tab. Registration before October 14 is $30, and $100 after that. Spouses of attendees can attend for free.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/events/fluid-power-takes-spotlight-pack-expo#comments Packaging Events Mon, 10 Oct 2016 13:33:00 +0000 40371 at http://hydraulicspneumatics.com Hydraulic-Electric Analogies: Fluid and Electronic Filters http://hydraulicspneumatics.com/hydraulic-filters/hydraulic-electric-analogies-fluid-and-electronic-filters <div class="field-deck"> Filters, be they electronic or hydraulic, are responsible for removing undesirables from their respective circuits. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/hydraulic-electric-analogies-fluid-and-electronic-filters-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p>Undesirable elements found in hydraulic and electronic circuits differ in physics as well as philosophy. In principle, hydraulic filters consist of porous media that trap particles greater than a specified size to remove contaminants from the fluid, all of which are undesirable. Traditional electronic filters consist of a combination of resistors, capacitors, and inductors to take advantage of circuit resonance to perform band-blocking or bandpassing filter functions to eliminate or reduce unwanted frequencies.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http:/hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-power-conditioning">Hydraulic-Electric Analogies: Power Conditioning</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-stepper-motors">Hydraulic-Electric Analogies: Stepper Motors</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-internal-gear-pumps">Hydraulic-Electric Analogies: Internal Gear Pumps</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-part-2-adding-variable-positive-displacement">Hydraulic-Electric Analogies: Part 2&mdash;Adding a Variable to Positive Displacement</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-simple-and-efficient">Hydraulic-Electric Analogies: Simple and Efficient</a></p> </div> <p>Neither filter, in its respective medium, is perfect. All fluid contaminants are bad, and in an ideal world they would be zero. Moreover, all undesirable frequencies, it is hoped, are reduced to zero. Neither goal is possible, strictly speaking, nor are they necessary. It is only necessary to reduce their respective effects to acceptable levels for the application at hand.</p> <p>Electronic filters are somewhat more flexible than hydraulic filters. That&rsquo;s because they can be designed and implemented to not only reject certain frequencies, but also reject bands of frequencies, or accept certain frequencies or bands of frequencies while rejecting others.</p> <p>Electronic filters can be active, meaning they incorporate active electronic functions (such as operational amplifiers along with resistors and capacitors), or they can be passive, meaning amplification functions are not used. These are analog devices.</p> <p>When using computers to control machinery, digital filtration technology can be implemented, providing performance simply not possible in analog circuits. In any event, filter theory for both hydraulic and electronic circuits have been developed to a high level and go beyond the scope of this basic survey of analogies.</p> <p><strong>Particle Counters: A Hydraulic Filter-Testing Tool</strong></p> <p>Hydraulic particle counters do just as the name implies, and are vital to the evaluation and testing of hydraulic filters. At least three different technologies exist to count <em>and</em> size particulate contaminants in the hydraulic fluid, but in the interest of brevity, only one will be reviewed in this article.</p> <p>Here&rsquo;s an oversimplified explanation of how a particle counter works: A sample of fluid containing contaminant particles is passed through a tiny chamber with concentrated bright light impinging on it. The presence of the particle is detected optically. But more than that, by measuring the size of the particle&rsquo;s shadow, the counter can determine its projected cross-sectional area. Thus, particles are able to be counted and classified according to size. Electronic (computer) processing of the particle measurements produces a summary of the fluid sample that delivers a report on the numbers of particles in each of several size ranges.</p> <p>Particle counting is used to evaluate filter effectiveness by comparing the upstream particle sizes and quantities to those measured downstream of the filter. Due to the way the counter&rsquo;s analyzer measures the shadow, a 3-&micro;m particle may be circular, cubic, or oblong. Each one has the same shadow area, but longest dimensions vary from one to another.</p> <p>Because the filter does not filter based upon shadow, but rather if it can be caught up in one of its apertures, an oblong particle may pass through on one pass. However, it will eventually try to pass sideways and be trapped. Thus, filters are evaluated using a multi-pass procedure. The total amount of contamination in the fluid continues to decrease in an exponential fashion with continued recirculation of the fluid. Most failures of hydraulic equipment can be traced to poor fluid-cleanliness practices.</p> <p><strong>Contaminant Sources and Corrective Actions </strong></p> <p>Several decades of applied research at Oklahoma State University&rsquo;s Fluid Power Research Center, supported and sponsored by OEM firms, revealed the common sources of contamination in a hydraulic system:</p> <p>1. New hydraulic fluid is not clean enough for use in high-pressure hydraulic systems. Fluid should be filtered before being introduced into the hydraulic reservoir.</p> <p>2. New components have manufacturing debris that is harmful. Cleanliness standards have made manufacturers aware of the problems, leading to improved pre-shipment component cleanups.</p> <p>3. Contaminants are ingressed through breather caps in fluid reservoirs. Breather-cap filters have to be of the same quality and contaminant trapping as the main system filters.</p> <p>4. Contaminants are ingressed via cylinder rod retractions as a result of normal operations. This knowledge has led to improved rod seals, and it points out the need for proper filtration on an ongoing basis.</p> <p>5. Poor user maintenance practices have been a major source of hydraulic fluid contamination. Education has led to user enlightenment.</p> <p>Attitudes toward fluid cleanliness have evolved since World War II. I have seen user attitudes go from &ldquo;we remove the filters because they just plug up&rdquo; to &ldquo;it&rsquo;s essential that we get the components clean, the fluid clean, and then keep it clean.&rdquo; The reward is more reliable machinery and less downtime.</p> <p>Filter technology has advanced considerably in recent decades due to industrial and academic research-and-development efforts. The status of the filter element is best indicated by the differential pressure drop across the filter. As it continues to do its removal work, the myriad tiny flow paths become blocked by particles accumulating in them.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/MotionControlFig1.gif" style="width: 200px; height: 362px; float: left;" title="1. This is the ISO standard schematic symbol for a hydraulic filter." /></p> <p>Some filters are equipped with integral low-pressure relief valves that allow fluid to bypass should the filter become seriously restricted. The rationale is that it is a safer situation to enable contaminated fluid to circulate through the system than to allow all flow to be blocked. But, obviously, the filter element should have been changed before the occurrence of such an extreme condition.</p> <p>The standard ISO filter schematic symbol is shown <em>Fig. 1</em>. They are normally drawn with fluid entering the upper port and leaving through the lower. However, that is merely common practice, not standardized practice.</p> <p><strong>Electronic Filters</strong></p> <p>Analog tuning of AM (amplitude modulation) and FM (frequency modulation) radios is a filtering process. Radio stations transmit signals in the AM band between 540 and 1600 kHz, with stations transmitting on even multiples of 10 kHz; for example, 540, 550, 560, . . . 1580, 1590, and 1600 kHz. These are called <em>carrier frequencies</em>. An antenna is nominally sized to capture all transmitted frequencies.</p> <p>Tuning is received using a capacitor-inductor circuit with variable capacitance that shorts out all frequencies except one. For example, a popular local AM station in Milwaukee is WTMJ, which transmits on 620 kHz. If you want to listen to that station, the capacitor is tuned until 620 kHz is isolated and amplified, while all other frequencies are effectively shorted to ground. Successful tuning is signaled by watching the tuning dial as well as listening for the intended audio.</p> <p>FM stations transmit on carrier frequencies between 88 and 108 MHz. Stations are selected in a similar manner, but at much higher frequencies. Today&rsquo;s radio receivers use digital filter tuning, which is more amenable to such user-friendly amenities as pushbutton tuning, station seeking, and aiding and improving <em>station separation</em>&mdash;another term for enhanced station selection. The key is a variable filter.</p> <p><em>Figure 2</em> shows a schematic diagram of the resonant inductance and capacitance in parallel that will select only one of several transmitted frequencies (stations). It also shows the receiving antenna that captures the signals from all nearby stations; however, the resonant circuit will sort all signal frequencies to ground.</p> <p>Other electronic filters are utilized to control background noise, which can occur in any circuit. Noise in this context is not necessarily heard, but that could be the case. Instead, it is any unwanted signal, such as hum in your expensive entertainment center or the interference that comes through an AM radio when you drive under a high-voltage power-transmission line.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/MotionControlFig2.png" style="width: 300px; height: 254px; float: right;" title="2. An inductor with a variable tuning capacitor will select one frequency from all of the frequencies received by the antenna." />When this occurs, the interference comes in through all possible means, including the antenna, but it can also get induced directly into the other stages within the radio receiver. For instance, a TV transmitting antenna can be pumping out as much as 100,000 W of radio-frequency (RF) power.</p> <p>A TV antenna is like the primary winding of a transformer, and every antenna and every piece of conductor within 50 miles is like a transformer secondary winding with one turn. The result is that every conductor in the car and radio will get some TV RF-induced into it and distort the station to which the radio is tuned. When an AM radio is within a mile or two of the TV transmitter, only the most selective tuning circuit can keep the interference outside the radio receiver.</p> <p><strong>Noise in Electrohydraulics</strong></p> <p>Such induced voltages can be dangerous in electrohydraulic machinery because the induced signals can provoke electrohydraulic pumps to change settings, causing electrohydraulic valves to shift at unexpected times and ways. It is essential that control electronic devices be evaluated as to their susceptibility to these stray electronic noises.</p> <p>Standardized and certified test methods can be conducted for electromagnetic compatibility (EMC). Compatibility means that the control circuits are able to reject the stray signals. Stray noise signals may enter the circuit by several means, such as through the external power supply connections. Others are induced directly into the circuit-board conductors and components.</p> <p>The EMC test procedure involves placing the tested circuit inside an enclosure shielded from external RF radiation and then generating controlled radiation within the enclosure while measuring the tested circuit&rsquo;s reaction. The aim is to make the circuit impervious to the effects of external radiation. Tests are conducted on an entire mobile vehicle when noise signal infiltration can impact safe operation of the vehicle.</p> <p>Electronic filter design is a technical specialty in itself, and has reached a high state of the art. Advanced types include <em>notch filters</em>, which can reject a specific frequency. They are sometimes used in poorly behaved feedback-control systems. Another is the <em>Butterworth</em> filter, which can reject all frequencies above a specifiable maximum with any desired degree of sharpness in the cutoff. <em>Kalman</em> filters are digital and implemented in software, but they need computer control systems to make mathematical calculations. <em>Moving average</em> is another form of digital filter that can help remove abrupt changes in the output of transducers and other signals.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/hydraulic-filters/hydraulic-electric-analogies-fluid-and-electronic-filters#comments Hydraulic Filters Fri, 07 Oct 2016 18:50:00 +0000 40351 at http://hydraulicspneumatics.com Today’s Air Valves: More Versatile Than Ever http://hydraulicspneumatics.com/pneumatic-valves/today-s-air-valves-more-versatile-ever <div class="field-byline"> Erl Campbell, Aventics Corp. </div> <div class="field-deck"> New developments in pneumatic-valve technology make packaging applications faster and more versatile. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/today-s-air-valves-more-versatile-ever-pdf-download">Download this article in .PDF format</a><br /> This file type includes high resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p><img alt="Fig. 1" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/06/Lead-image.jpg" style="width: 595px; height: 398px;" title="Advances in air valves enable packaging machines, like this cartoner, to use pneumatics more efficiently and help machine builders create innovative folding configurations to satisfy market needs." /></p> <p>Pneumatics is widely used in many packaging machines to drive motion and actuate machine sequences. It is a clean, reliable, compact, and lightweight technology that provides a cost-effective solution to help packaging machine designers create innovative systems, all the while staying competitive.</p> <p>Manifold-valve technology plays a central role in the performance and effectiveness of pneumatic systems. Recent developments in this technology have increased their flexibility, modularity, and ability to integrate with&mdash;and be controlled by&mdash;the advanced communication bus architectures that are preferred by leading packaging-machine OEMs and end users, enhancing the application value afforded by pneumatics technology.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href=" http://hydraulicspneumatics.com/rail-truck-bus/electronics-control-truck-air-suspensions">Electronics Control Truck Air Suspensions</a></p> <p><a href=" http://hydraulicspneumatics.com/pneumatic-valves/air-valves-pull-three-shifts">Air Valves Pull Three Shifts </a></p> <p><a href="http://hydraulicspneumatics.com/pneumatic-valves/ceramic-air-valves-stand-dirt">Ceramic Air Valves Stand Up to Dirt</a></p> </div> <h3>Pneumatics-Driven Packaging Applications</h3> <p>Pneumatics can be particularly effective for any kind of machine motion that combines or includes high-speed, point-to-point movement of the types of products with the weight and size dimensions typically found in packaging machines. This includes indexing, sorting, and pick-and-place functions. It is also used for suction cups or non-contact transfer devices.</p> <p>For example, pneumatics can drive multiple functions on cartoning machines: indexing the infeed of blank cartons onto the process line; driving machine components that help form the folds; closing those folds; and moving glue guns or other sealing devices. In form fill and seal machines, it&rsquo;s common to have pneumatics drive clamping devices and heat sealers, as well as tension controllers on rollers discharging the plastic film that forms the bags being sealed.</p> <p><img alt="Fig. 2" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/06/Lightweight-materials.jpg" style="width: 595px; height: 420px;" title="Lightweight materials and compact, space-saving configurations help machine builders maximize their use of manifold pneumatic valves and minimize the distance from the valves to the cylinders they control. They even make it possible to mount the valve on the end effector itself." /></p> <p>Several factors continue to make pneumatics broadly appealing to machine builders in the packaging industry. One is cost of ownership: Not only are most pneumatics components relatively low cost to begin with, the systems themselves are relatively easy to maintain and repair. They do not require special training or outside specialists, which can add to operating costs.</p> <p>Pneumatic-driven systems move products through machine sequences at high speeds&mdash;typical systems support motion sequences of up to 5 m/sec, and higher-end cylinders support 11 m/sec. These rates satisfy a significant percentage of throughput rates found in many packaging-machine applications, such as pick-and-place systems.</p> <p>Pneumatics technology is easy to integrate into larger machine designs; it is highly modular, lightweight, and compact enough to be installed on moving machine elements such as linear modules. It also offers the kind of long-lasting reliability expected from today&rsquo;s automation technologies. For example, one pneumatics supplier&rsquo;s valve series has been tested to operate through 140 million duty cycles without device failure.</p> <h3>Manifold Valves Control the Flow</h3> <p>All pneumatics systems work on the same basic principle: A single air source provides all of the air pressure needed for the different components, and it is the valve system that controls the distribution and sequencing of the air to drive individual actuators.</p> <p>Standard valve systems typically provide directional flow control: Air is supplied through one valve to actuate a pneumatic cylinder and drive the motion cycle on a machine device, and the air is released through the manifold following a different path. Most packaging machines use 12-15 station valve manifolds, but more advanced designs are available that support up to 64 valve stations.</p> <p><img alt="Fig. 3" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/06/Latest-generation.jpg" style="width: 595px; height: 446px;" title="The latest generation of manifold pneumatic valves, such as the AV03 valve from AVENTICS, integrates intelligent electronics and bus interfaces to allow for fast, easy integration with packaging-machine control architectures." /></p> <p>Another common valve configuration is a 3/2 (three-port, two-position) valve, which supplies air to extend a cylinder, and then shifts to allow the cylinder to retract. This type of valve configuration can be a more compact design, since some manufacturers allow two 3/2 valves to be paired in one valve slice for greater flexibility in controlling motion sequences.</p> <p>A newer capability now being offered with pneumatic valves is pressure control. Typically, the manifold supplies the same pressure to all actuators. Manifolds can be supplied with individual pressure regulators for each work port. Newer technology allows for electronic pressure control for a single output or downstream air pressure in the manifold. Certain packaging applications, such as a clamp that is grasping and holding a product, may demand less pressure to handle a sensitive item properly without damaging it.</p> <h3>Key Valve Design Considerations</h3> <p>When selecting a valve system, the main criteria to use are the valve&rsquo;s flow rate, the weight and space constraints associated with fitting it into a machine design, and the valve&rsquo;s functionality.</p> <p>Significant design advances have made valves more compact and modular. This includes the expanded use of high-grade polymers to reduce valve weight. Lightweight construction is key to keeping the valve as close to the actuators it is controlling as possible.</p> <p>Minimizing the distance from the valve to the components helps reduce installation and connection costs. More importantly, it improves overall pneumatic energy efficiency. Air is considered an expensive commodity in many operations; if you can mount a compact, lightweight manifold close to the cylinders it is driving&mdash;even mounting it on the end effector itself&mdash;the lighter weight enables the machine designer to use smaller actuators that are moving that end effector. Lighter weight plus smaller cylinders add up to less energy needed to supply the requisite pneumatic flow.</p> <p><img alt="Fig. 4" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/06/Many-valve-suppliers.jpg" style="width: 595px; height: 397px;" title="Many valve suppliers are working to integrate advanced capabilities—such as condition monitoring and diagnostics features on valve components—using feedback loops similar to those used in electric drive systems, to improve the ability of machine designers and end users to have all of the machine performance data needed to manage packaging productivity, throughput, and quality. " /></p> <p>Other innovations have also made pneumatic valves more compact and easy to locate within crowded machine spaces or control cabinets. One design uses a diagonal &ldquo;wedge&rdquo; shape that positions the pilot section over the top of and on one side of the valve, and the air output on the other side. This approach is up to 45% more compact than other designs and provides higher air flow than valves of comparable design.</p> <p>Another valve feature to assess is spool design. The spool is the moving device within the valve that regulates airflow. Some valves use a metal spool designed to fit into a honed housing. Others use more lightweight polymer housing with a metal spool and O-ring seals on the body of the spool, or the spool housing, to provide a seal and prevent leakage. Each design has its advantages: Seals can wear out and have to be replaced. However, they do reduce leakage and provide better airflow.</p> <h3>Making Valves Smarter</h3> <p>As with many other developments in packaging automation, demand has increased for pneumatics technologies to provide more sophisticated control and integration of digital intelligence and communications capabilities into their architecture.</p> <p>When considering a pneumatics platform for a packaging system, it is critical to determine the level of control sophistication the system needs, which will help machine designers and end users select the optimum configuration. Leading pneumatics suppliers are engineering high-throughput, multi-protocol bus-interface modules that make it much easier to integrate valve manifolds into PLC systems.</p> <p>Machine builders can select from modules that support most major communications protocols used in the packaging industry, including Profibus DP, DeviceNet, and Ethernet/IP. This single serial bus connection replaces older, more costly, time-consuming methods that require each valve on a manifold to have a standalone communications link with the machine controller.</p> <p>There is also a trend to integrate I/O connections into these bus modules. This provides a further cost savings: Many pneumatics-driven actuators also have sensors capturing motion data from the pneumatic cylinder via I/O links. By integrating multiple I/O ports into the valve communications bus module, machine builders can eliminate the need for separate I/O bus modules.</p> <h3>Emerging Trends</h3> <p>Valve designers are investing in new functionality, leveraging the capabilities available from the advanced digital bus modules that are being added to manifold valve systems. For example, many machine designers want to be able to do condition monitoring and conduct diagnostics on valve components using feedback loops similar to those used in electric drive systems.</p> <p>In the near future, it will be possible to monitor the actual position of the spool within each valve on a manifold. By actually monitoring the spool position, the machine can track exactly how each valve performed during a motion cycle&mdash;where that valve started, whether it fully or only partially shifted, and its final position. This data helps machine builders and end-user operators isolate and correct issues that may affect overall packaging quality and integrity.</p> <p>A newer capability now being offered with pneumatic valves is pressure control. Typically, the manifold supplies the same pressure to all actuators. Certain packaging applications, such as a clamp that is grasping and holding a product, may demand less pressure to handle a sensitive item properly and not damage it.</p> <p>Using the digital bus interface, the machine controller can adjust the pressure on an individual valve or series of valves that drive that actuator. This allows one manifold to be used, rather than multiple valves with different pressure ratings.</p> <p>One more emerging capability is built-in safety functionality. There are valve manufacturers considering adding Category 3 and 4 exhaust valves to the manifold. Instead of exhausting the air from allof the actuators controlled by the valve in the event of emergency machine shutdown, it can be done selectively. In the event that certain actuators are holding a load when the machine comes to a standstill, those actuators remain pressurized while other axes on the machine are safely exhausted.</p> <h3>Sustaining Pneumatics Value</h3> <p>Pneumatic-valve systems continue to advance, with investments in technology making them more versatile and intelligent in response to the evolving demands of the packaging-machine marketplace. Abroad range of manifold valve options are available; by considering those engineered to provide compact, lightweight design and use of digital electronics for easy integration into automation controls platforms, packaging-machine builders and end users can be assured that their solutions deliver maximum commercial value.</p> <p><strong>Erl Campbell, Industry Segment Manager </strong></p> <p><strong><a href="http://www.aventics.com/us" target="_blank">Aventics Corp.</a></strong></p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> <table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/today-s-air-valves-more-versatile-ever-pdf-download">Download this article in .PDF format</a><br /> This file type includes high resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> </div> http://hydraulicspneumatics.com/pneumatic-valves/today-s-air-valves-more-versatile-ever#comments Packaging Pneumatic Valves Fri, 07 Oct 2016 03:56:00 +0000 40321 at http://hydraulicspneumatics.com The New IQ in Injection Molding http://hydraulicspneumatics.com/controls-instrumentation/new-iq-injection-molding <div class="field-byline"> Dan Davis, Parker Hannifin Corp. </div> <div class="field-deck"> Three ways you can put smart sensors to work today to bring intelligent quality (IQ) to injection molding. </div> <div class="node-body article-body"><p>Famed 19th-century essayist and social critic John Ruskin once said, &ldquo;Quality is never an accident. It is always the result of intelligent effort.&rdquo; This statement is perhaps most true in the manufacturing environment. When it comes to injection molding, quality is an absolute expectation&mdash;and it takes discipline to achieve. Operating with anything less than precision can lead to sub-par quality that results in downtime, increased scrap, costly waste, performance issues and, ultimately, dissatisfied customers.</p> <div class="related-content"> <div class="related-label">Related Content</div> <p><a href="http://hydraulicspneumatics.com/controls-instrumentation/low-energy-wireless-sensors-work-ios-mobile-apps">Low-Energy Wireless Sensors Work with iOS Mobile Apps </a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-fluids/check-fluid-temperature-your-smartphone">Check Fluid Temperature&hellip;From Your Smartphone</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/variable-speed-revolution-hydraulics">A Variable-Speed Revolution in Hydraulics</a></p> </div> <p>What Ruskin likely didn&rsquo;t anticipate when he uttered those words more than a century ago are the considerable resources that would be available today to truly make the effort to achieve quality more intelligently. Smart sensor technology is one of those resources.</p> <h3><strong>Driving Intelligent Quality into the Operation</strong></h3> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pressure%20sensor_1.jpg"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pressure%20sensor_1.jpg" style="width: 366px; height: 242px; margin-right: 4px; margin-left: 4px; float: right;" title="Parker Hannifin’s SensoNODE Blue sensors can be applied to various points in the injection molding process to monitor and record data to provide analytics about a system’s pressure, temperature, and humidity. Pictured here is a pressure sensor in the field." /></a>Multiple parameters should be regularly monitored and diagnosed during the injection molding process to ensure optimal quality, but those parameters can be difficult to manage. Often, they require ongoing review of gauges, recording of current status and assessing that status versus acceptable targets. Most users still monitor these parameters manually, periodically requiring personnel to capture needed data. This approach is time consuming and vulnerable to human error. And aging equipment&mdash;which comprises the vast majority of today&rsquo;s plant assets&mdash;can make the task even more challenging because older machines often lack onboard gauges. Regardless of where the data come from, a manual monitoring approach often doesn&rsquo;t reveal an equipment issue before it&rsquo;s already had a negative impact on quality.</p> <p>Smart, wireless sensors are changing how this type of monitoring is managed. They can be easily deployed to take the place of or augment gauges, and they enable automatic collection of data when and where a plant operation needs them. Data are available in real-time, and accessed on-demand via user-friendly software and apps. Smart sensors can enhance the capabilities of new or aging equipment, extending its value and useful life.</p> <p><strong><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Tablet%20data_1.jpg"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Tablet%20data_1.jpg" style="width: 366px; height: 264px; margin-right: 4px; margin-left: 4px; float: right;" title="Once captured, data are wirelessly transmitted to Parker Hannifin’s SCOUT Mobile, a user-friendly interface that provides instant and easy access to data for a variety of stakeholders via smart phone or tablet devices." /></a></strong>This intelligent quality approach&mdash;the new IQ&mdash;enables ongoing condition monitoring to identify trends that may indicate a change in the way equipment is performing. Such changes frequently serve as the first warning sign of an impending issue. Recognizing them is integral to taking action to preserve quality performance, such as making equipment adjustments or scheduling maintenance.</p> <h3>Three Ways to Build Your IQ</h3> <p>When an operation is struggling with quality molding of parts, one of two issues is most frequently the culprit. The first is a <em>short shot</em>&mdash;a part that isn&rsquo;t completely formed. The second is a <em>flash</em>&mdash;a part that is formed, but is either outside the specified dimensions or contains significant excess material.</p> <p>These common issues are typically the result of too much or too little pressure in getting the plastic material to the mold cavities, improper temperature for the plastic material or cooling lines, or humidity fluctuations that prevent the raw material from maintaining the proper state. And there&rsquo;s a wide margin for error: These factors can have an impact on the molding process from the moment the plastic material is delivered to the molding machine until the part is ejected from the mold.</p> <p>Smart sensors can play a key role in minimizing these issues. Here are three ways you can put them to work in your operation&mdash;today&mdash;to introduce intelligent quality.</p> <p><strong>Maintain pressure</strong>&mdash;Proper hydraulic working pressure is critical to the injection molding process. The two most critical pressures are that of the injection screw that pushes material into the mold and the clamp that holds the mold halves shut. If insufficient pressure prevents molds from closing properly, they can open and make a part vulnerable to flash, leading to inconsistencies throughout a batch.</p> <p>Smart sensors can be applied to the primary points of pressure loss, detecting the slightest change in the pressure and providing a real-time alert to the user. This intelligence enables the pressure issue to be addressed early, minimizing scrap and rework costs.</p> <p><strong>Measuring temperature</strong>&mdash;Some temperatures must remain consistent to ensure optimal product quality for injection molding. Temperature variability most often occurs at three critical points in the production process: at the mold tool area, in the water lines that cool the parts in the mold before ejection, and within the environment of the molding room.</p> <p>Sensors can be deployed at these precise points throughout the process to give users access to real-time temperature data. Temperatures that fall below or rise above optimal levels can be adjusted before they have an impact on the product.</p> <p><strong>Assessing humidity</strong>&mdash;Too high a humidity can add moisture to the raw material, which can transform its properties and prevent it from molding as expected. Humidity can have an impact on raw material in storage containers, as well as process lines, drying equipment and molding machines.</p> <p>Smart sensor technology is ideal for in-line and ambient humidity monitoring. Its ability to diagnose issues and track conditions over time enables users to assess gradual trends of increasing humidity within a facility, and take the appropriate actions to address changes.</p> <h3>Going Beyond Quality</h3> <p>Although the impact on quality is compelling, it isn&rsquo;t the only benefit smart sensors can deliver to the injection molding operation. By revealing issues before they escalate, the use of smart sensors can help decrease maintenance costs. These sensors can give users access to data they wouldn&rsquo;t otherwise have, especially in hard-to-reach or potentially hazardous areas where gauges would be difficult or dangerous to view. And the use of smart sensors can even improve efficiency and increase productivity. How? By eliminating time-consuming, costly manual monitoring processes.</p> <p>The advantages of smart sensors will only multiply over time. Already, they&rsquo;re playing a critical role in creating a roadmap for predictive maintenance. And new applications are being created to provide even better intelligence&mdash;more sophisticated diagnostics, integration with other internal systems, trend monitoring, live monitoring, and more.</p> <p>You don&rsquo;t have to let quality in your injection molding operation be a happy accident. You can make your effort more intelligent by leveraging smart sensors to increase your plant&rsquo;s IQ.</p> <p><em>Dan Davis is a Certified Fluid Power Specialist and Product Sales Manager for SensoControl and diagnostic tools at Parker Hannifin Corp.&nbsp;Contact him at <a href="mailto:dan.davis@parker.com?subject=Inquiry%20from%20Hydraulics%20%26%20Pneumatics%20website">dan.davis@parker.com</a> or visit <strong><a href="http://www.parker.com/conditionmonitoring" target="_blank">www.parker.com/conditionmonitoring</a></strong>.</em></p> <p><em><a href="http://sourceesb.com/" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 595px; height: 46px;" /></a></em></p> </div> http://hydraulicspneumatics.com/controls-instrumentation/new-iq-injection-molding#comments Controls & Instrumentation Machine Tools Thu, 06 Oct 2016 18:07:00 +0000 40341 at http://hydraulicspneumatics.com Today’s Air Valves: More Versatile Than Ever (.PDF Download) http://hydraulicspneumatics.com/datasheet/today-s-air-valves-more-versatile-ever-pdf-download <div class="node-body datasheet-body"><p>Pneumatics is widely used in many packaging machines to drive motion and actuate machine sequences. It is a clean, reliable, compact, and lightweight technology that provides...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> <div class="gatedLogin well"> <div class="contentPadding clearfix"> <h2>Register for Complete Access (Valid Email Required)</h2> <p><p><img height="auto" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/10/10/SALARY_SURVEY_HPcover.jpg" width="100%" />By registering on Hydraulics &amp; Pneumatics now, you&#39;ll not only gain access to , you&#39;ll also receive a complimentary copy of <em>Hydraulics &amp; Pneumatics 2016 Salary &amp; Career Report</em>.</p> </p> <div class="gatedLoginButtons gated-register-button"> <div class="button-region"> <a href="/penton_ur/nojs/user/register?source=gated&nid=40331&regmode=1" class="ctools-use-modal btn btn-branded btn-wide ctools-modal-register" title="Register at this site.">Register</a> </div> <div class="loginLinkText"> Already registered? <a href="/penton_ur/nojs/login" class="ctools-use-modal ctools-modal-log_in" title="">Log In</a> here. </div> </div> </div> </div> </div> Gold Thu, 06 Oct 2016 15:12:00 +0000 40331 at http://hydraulicspneumatics.com Troubleshooting Challenge: Regenerative Circuit Not Working on a Molding Machine http://hydraulicspneumatics.com/hydraulic-valves/troubleshooting-challenge-regenerative-circuit-not-working-molding-machine <div class="node-body article-body"><p>An older molding machine was being used to debug new dies. The opening and closing time for the machine had increased to twice its normal high-speed closing rate. However, the tonnage when clamped was still working fine.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/controls-instrumentation/troubleshooting-challenge-fix-one-problem-another-crops">Troubleshooting Challenge: Fix One Problem, Another Crops Up</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/troubleshooting-challenge-o-ring-installation-causes-motor-overload">Troubleshooting Challenge: O-ring Installation Causes Motor to Overload</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/troubleshooting-challenge-hydraulic-system-overheats-aluminum-recycling-plant">Troubleshooting Challenge: Hydraulic System Overheats in Aluminum Recycling Plant</a></p> </div> <p>The circuit used a <a href="http://sourceesb.com/sunhydraulicscorporation/distributors-and-vendors" target="_blank">Sun Hydraulics</a> counterbalance valve as the regenerative unloader. Unfortunately, as is too often the case, the first thing the mechanic did was replace the pump, which didn&rsquo;t solve the problem. Next, the Sun counterbalance valve was replaced. The maintenance people felt if they adjusted it as high as it would go clockwise, the high-speed regeneration circuit should work all of the time, and they would see half the normal tonnage. Again, this did not fix the problem. They disassembled the check valves and relief, but found nothing wrong.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/1016_HP_TshootChallenge_Fig.gif" style="width: 595px; height: 594px;" /></p> <p>Any idea what could be causing the problem?</p> <p><strong>Find the Solution</strong></p> <p>Think you know the answer to this month&rsquo;s problem? Submit your solution by emailing Mindy Timmer at <a href="mailto:timmer@cfc-solar.com">timmer@cfc-solar.com</a>. All correct solutions submitted by October 24, 2016 will be entered into a random drawing for a $50 gift card. The winner will be notified, and his or her name will be printed in a future issue. Only one gift card will be awarded to any participant within a calendar year.</p> <p><strong>Solution to Last Month&rsquo;s Problem: <a href="http://hydraulicspneumatics.com/controls-instrumentation/troubleshooting-challenge-fix-one-problem-another-crops" target="_blank">Fix One Problem, Another Pops Up</a></strong></p> <p>After replacing a ruptured bladder in an accumulator, technicians could not get a pair of squeeze cylinders to extend, and when the cylinders retracted, a pressure gauge read 0 psi.&nbsp;</p> <p>After the technicians received a new gauge, a lot of compressed air came out of the hydraulic line when they removed the old gauge. They installed the new gauge and bled any remaining air out by cracking the tube nut on the back of the gauge. Voila! The squeeze cylinders started extending.&nbsp;</p> <p>One of the technicians made a comment that the tube lines to remote valves and gauges are usually &frac14; in. or smaller in size. They summarized that the reducing valve&rsquo;s balancing orifice passes only a small flow of oil, so it took a long time to compress the air in the oversized pilot lines&mdash;especially in the line to the gauge on the console. The air must have entered the &frac12;-in. lines when the reducing valve was examined.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/hydraulic-valves/troubleshooting-challenge-regenerative-circuit-not-working-molding-machine#comments Plastics & Injection Molding Hydraulic Valves Thu, 06 Oct 2016 13:20:00 +0000 40311 at http://hydraulicspneumatics.com Hydraulic Valves for Serious Motion Control http://hydraulicspneumatics.com/hydraulic-valves/hydraulic-valves-serious-motion-control <div class="field-byline"> Jacob Paso, Delta Computer Systems </div> <div class="field-deck"> Looking to achieve the smoothest, most-effective hydraulic motion-control system for your application? A well-informed choice of valve could make the difference. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/hydraulic-valves-serious-motion-control-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/Lead_image.jpg" style="width: 595px; height: 463px;" title="Author Jacob Paso shows motion profiles of various electrohydraulic proportional valves undergoing testing at Delta Computer Systems." /></p> <p>High-performance hydraulic valves are the workhorses of hydraulic motion control. Using the proper valves can make the difference between a great-performing, low-maintenance machine and one that causes defects in production parts and needs plenty of attention.</p> <p>Presented here is a basic guide to selecting and applying these valves to help make your hydraulic motion system trouble-free. This guide is oriented toward readily available, servo-quality, 4-way valves to control a hydraulic cylinder with a motion controller that outputs a &plusmn;10-V command signal.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/electrohydraulic-proportional-valve-tolerates-heavy-shock">Electrohydraulic Proportional Valve Tolerates Heavy Shock</a></p> <p><a href="http://hydraulicspneumatics.com/technologies/troubleshooting-challenge-proportional-valve-inconsistency">Troubleshooting Challenge: Proportional-Valve Inconsistency</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/whats-difference-between-servovalve-and-proportional-valve">What&#39;s the Difference Between a Servovalve and a Proportional Valve?</a></p> </div> <p>Cylinder motion control typically involves 4-way valves. There are two main types&mdash;there is no industry consensus on the exact terms, but the following classifications seem to cover it:</p> <p>&bull; <em>Servo-quality proportional directional valves</em> are the most common type, employing a linear motor, powerful solenoids, or voice-coil setup to actuate the spool. These generally need no adjustment.</p> <p>&bull; <em>Current-driven servovalves</em>, the &ldquo;original&rdquo; servovalves, contain either a jet pipe or flapper nozzle and are driven by electrical current, typically ranging from &plusmn;10 mA to &plusmn;200 mA. These valves require periodic readjustment of null, or center position.</p> <p>Most recent developments in industry apply to servo-quality proportional valves. These generally have higher performance than traditional servovalves, which are usually more compact.</p> <p><strong>Linear Valves</strong></p> <p>The algorithms employed by motion controllers generally assume linear response of the system, meaning that sending 2 V to the valve will result in a velocity twice that of sending 1 V. To achieve good control, the valve&rsquo;s flow versus command signal profile should be linear <em>(Fig. 1)</em>.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/1016_Proportional_F1_Linear.gif" style="width: 595px; height: 506px;" title="1. Profile of a linear valve with zero-lapped spool: The flow bears a linear relationship to the command signal." /></p> <p>Terms such as &ldquo;kink,&quot; &quot;knee,&quot; and &quot;progressive&quot; indicate a nonlinear valve. Nonlinear valves can certainly be used, but they require more setup in the motion controller, which must use a linearization algorithm to compensate for the nonlinearity. Traditionally, nonlinear valves (such as those represented in <em>Figs. 2</em> <em>and</em> <em>3)</em> are good for providing high maximum velocity while also providing fine control at low speeds. However, modern linear valves perform so well that there is rarely a need for nonlinear valves. Occasionally&mdash;when high velocity and exceptionally fine position or force control is required&mdash;a nonlinear valve may be preferable. Exercise caution, though, because if the nonlinear valve does not have great performance around the zero input point, it negates this advantage.</p> <p><strong>Zero-, Over-, and Under-lapped Spools</strong></p> <p><em>Zero-lapped</em> means the spool is cut so that as soon as a voltage is applied to the valve, hydraulic fluid starts flowing. This is critical for dynamic systems that need to quickly change direction. An <em>over-lapped</em> spool <em>(Fig. 4)</em> means the spool must travel some distance before fluid starts flowing, which results in a zero fluid output for a certain amount of time. Reversing motion without delay is impossible with an over-lapped spool.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/1016_Proportional_F2_SharpKnee.gif" style="width: 595px; height: 506px;" title="2. Profile of a nonlinear valve with a sharp knee: Flow changes less rapidly at low command signal voltages than at voltages above the “knee.”" /></p> <p>In certain cases, especially for pressure control, an <em>under-lapped</em> spool is desirable.&nbsp; An under-lapped spool is cut such that, at the center position, a slight flow issues from the pressure input port to the <em>A</em> and <em>B</em> output ports, and from the <em>A</em> and <em>B</em> ports to the tank port. This valve design provides a smoother transition in the system response when going from closed to open.</p> <p><strong>On-board Electronics</strong></p> <p>Valves with on-board electronics don&rsquo;t need a separate amplifier card. Typically, with a good valve, you don&rsquo;t need to adjust the on-board electronics. For motion control, spool position feedback is a must&mdash;the on-board electronics use this feedback to provide flow exactly as commanded.</p> <p>I have found at least one case, involving a <a href="http://sourceesb.com/manufacturers/search?q=yuken" target="_blank">Yuken</a> valve, where off-board electronics is required to achieve the very highest performance of the valve (allowing a higher-voltage supply). However, the on-board version performs very well, too.</p> <p><strong>Lower-Performing Valves</strong></p> <p>Valve manufacturers offer varying levels of performance. For example, the <a href="http://sourceesb.com/manufacturers/search?q=bosch+rexroth" target="_blank">Bosch</a> 4WREE is less expensive and slower than the Bosch <a href="http://sourceesb.com/part/4wrpeh~boschrexrothelectricdrivescntrls" target="_blank">4WRPEH</a>. As indicated in the valve datasheets, the less expensive valve has smaller solenoids, lower bandwidth, slower step response, and a nonlinear flow versus command signal profile, all of which make control difficult.</p> <p>Also, these less-expensive valves are usually flow-limited at higher pressure drops between lands; that is, between the pressure port and the <em>A</em> or <em>B</em> port, and between the <em>A</em> or <em>B</em> port and the tank port. This is because the Bernoulli forces within the valve become stronger than the solenoid force and the valve begins to close, which wreaks havoc on the control loop. This has bitten a lot of people and is counterintuitive. So, unless you are aware of this phenomenon, it can cause confusion and frustration.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/1016_Proportional_F3_Curvilinear.gif" style="width: 595px; height: 506px;" title="3. Curvilinear profile: The rate of change in the flow becomes more rapid with increases in command voltage." /></p> <p><strong>The Tradeoff Headache</strong></p> <p>If you enjoy headaches, choose a lower-performing valve with an over-lapped spool (creating a deadband in valve response) and a nonlinear flow versus command signal profile. The Bernoulli forces in cheaper valves also cause problems, though.</p> <p>However, overcoming those problems can result in cost savings, particularly for OEM applications. In such applications&mdash;when you just need to go through the difficult setup and tuning process once and crank out your product in large volume&mdash;it can be well worth it to get a valve that is barely good enough to do the job. Conversely, on low-volume or one-off applications, the time-savings tradeoff in setup and maintenance usually justifies using a better-quality valve.</p> <p><strong>On-board Motion Control</strong></p> <p>Several manufacturers now include a motion controller in the valves&rsquo; electronics. This has some advantages in reduced wiring, but limits multi-axis synchronization. It also reduces flexibility and ease of maintenance in case of valve failure. If the valve fails, so does the motion controller.</p> <p>Basic valves with a &plusmn;10-V input and no on-board motion control are less expensive, need no programming, and can often be directly replaced by another brand. This feature is useful in a machine-down situation, where you need to get up and running quickly but your original supplier has unacceptable lead times.</p> <p><strong>State of the Art</strong></p> <p>Precise comparison between valves is difficult because manufacturers list specifications for their valves slightly differently. However, for most hydraulic motion applications that require dynamic motion (quick turnarounds) and positioning of 0.001 in. or less, a &ldquo;very good&rdquo; D03 or D05 valve has a 3-dB frequency response (for 5% stroke) of 100 Hz or more and a step response of 10 ms or less.</p> <p>Newer valves deliver ever-increasing performance. The latest D03 valves rated for flows of about 40 to 60 lpm achieve step-response times of down to 5 ms and 3-dB frequency response of up to 400 Hz.&nbsp; D05 valves capable of about 100 lpm are only slightly slower.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/05/1016_Proportional_F4_Overlapped.gif" style="width: 595px; height: 506px;" title="4. Profile of valve with over-lapped spool: There is zero flow until the valve spool moves into the active region, which in this case is at command voltages greater than 2 V and less than –2 V." /></p> <p><a href="http://sourceesb.com/manufacturers/search?q=delta+computer+systems" target="_blank">Delta Computer</a> has tested many valves from various manufacturers, so we can confidently provide recommendations to our customers. We have the most information on the more common D03 and D05 (NG6 and NG10) servo-quality proportional valves. Performance data on larger valves comes from our customers and spec sheets. If any valves are missing from the following list, we welcome the manufacturer to send us an example so that we can test it, and subsequently provide any recommendations.</p> <p><strong><a href="http://www.atos.com/home.html" target="_blank">Atos SpA</a>&mdash;</strong>Two valves, the <a href="http://sourceesb.com/part/dlhzoteb~atos" target="_blank">DLHZO-TEB</a> and <a href="http://sourceesb.com/part/dlkzorteb~atos" target="_blank">DLKZOR-TEB</a>, are single-stage in sizes NG6 and 10. The <em>L</em> in the part numbers indicates a sleeve, which provides more precise control and faster response.</p> <p>The <a href="http://sourceesb.com/part/dpzoleb~atos" target="_blank">DPZO-LEB</a> is a two-stage valve in sizes NG10 to 35. The <em>EB</em> indicates the basic integral digital driver, which is all that&rsquo;s needed when using Delta&rsquo;s RMC motion controller to control the valve with a &plusmn;10-V signal. Therefore, do not choose any P/Q controls or fieldbus interfaces, which only apply to the full integral driver. Instead, opt for the linear spool for most applications.</p> <p>I have found the progressive-spool ATOS valves to be particularly well-behaved around zero, making them great candidates for the few cases when you want a progressive spool.</p> <p><strong><a href="http://sourceesb.com/manufacturers/search?q=bosch+rexroth" target="_blank">Bosch Rexroth</a>&mdash;</strong>The <a href="http://sourceesb.com/part/4wrreh~boschrexrothelectricdrivescntrls" target="_blank">4WRREH</a> valve comes only in size NG6. It has fast response, with a step response of less than or equal to 5 ms. The 4WRPEH comes in sizes NG6 and NG10. The NG6 is not as fast as the 4WRREH, but, nonetheless, plenty good. Again, be sure to choose the &plusmn;10-V command option.</p> <p>Rexroth&rsquo;s <a href="http://sourceesb.com/part/4wrve~boschrexrothelectricdrivescntrls" target="_blank">4WRVE</a> comes in sizes 10 to 35. I haven&rsquo;t tried this one, but the specs indicate it is a higher-performance version of the <a href="http://sourceesb.com/part/4wrle~boschrexrothelectricdrivescntrls" target="_blank">4WRLE</a>, which has been a solid performer for years. Be sure to choose the V indication (indicating a lapped spool) with the L (linear) flow characteristic.</p> <p>The 4WRLE also comes in sizes 10 to 35. The V spool with the L flow characteristic should be chosen in this case, too.</p> <p><strong><a href="http://sourceesb.com/eatonhydraulicsgroup/distributors-and-vendors" target="_blank">Eaton</a>&mdash;</strong> Axis Pro valves offer high response and are available in D03 and D05 versions: the <a href="http://sourceesb.com/part/kbs103~eatonhydraulicsgroup" target="_blank">KBS-03</a> and <a href="http://sourceesb.com/part/kbs105~eatonhydraulicsgroup" target="_blank">KBS-05</a>, respectively. Choose level 1 in order to work with Delta&rsquo;s RMC motion controller</p> <p><strong><a href="http://sourceesb.com/moog/distributors-and-vendors" target="_blank">Moog</a>&mdash;</strong> The <a href="http://sourceesb.com/part/d661g~manufacturernotidentified" target="_blank">D661</a> has very fast response and high flow, as do the D681 to D685.&nbsp; All are available in ISO 4401 sizes 05 to 10. Moog&rsquo;s D633/634 and D636/637 also produce good test results.</p> <p>Moog&rsquo;s 79 series valves have extremely high response at 200 gpm (750 lpm)&mdash;the fastest response I have ever seen at such a high flow.</p> <p><strong><a href="http://sourceesb.com/manufacturers/search?q=parker+hannifin" target="_blank">Parker Hannifin</a>&mdash;</strong>The DFPlus voice-coil valves are great-performing valves with very high response. The D1FP and D3FP are sizes NG6 and NG10, respectively. The D1FH is not as high performance as the D1FP, but also works quite well.</p> <p><strong><a href="http://sourceesb.com/manufacturers/search?q=yuken" target="_blank">ALA Industries (Yuken Kogyo)</a>&mdash;</strong>Yuken&rsquo;s <a href="http://sourceesb.com/part/lsvg01eh~yuken" target="_blank">LSVG-01-EH</a> and the <a href="http://sourceesb.com/part/lsvg03eh~yuken" target="_blank">LSVG-03-EH</a> have very high response and linear output with on-board electronics, but the D03 and D05 sizes max out at 60 lpm. Yuken also makes a similar high-response D05 valve, the <a href="http://sourceesb.com/part/se1024~yuken" target="_blank">SE1024</a>, with higher flow capability: 130 L/min. Yuken provides even faster response with off-board electronics, which allows a higher-voltage power supply.</p> <p><strong>Conclusion</strong></p> <p>Designing a hydraulic motion-control system to meet the objectives of your application involves many considerations. Selecting the proper valve is essential, and hopefully the tips listed here will help bring you one step closer to a smooth experience.</p> <p>Other important factors include choosing the proper position, pressure, or force sensors; placing the valve close to the cylinder so the motion controller controls only the cylinder (not the compression of oil or expansion of hose); and selecting a motion controller designed for hydraulic motion.</p> <p><em>Jacob Paso is</em><em> Motion Product Development Manager at Delta Computer Systems Inc. For more information, visit deltamotion.com</em><em> or call (</em><em>360) 254-8688.</em></p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/hydraulic-valves/hydraulic-valves-serious-motion-control#comments Controls & Instrumentation Hydraulic Valves Wed, 05 Oct 2016 15:19:00 +0000 40291 at http://hydraulicspneumatics.com Inverter-Driven Hydraulic Power Units http://hydraulicspneumatics.com/hydraulic-pumps-motors/inverter-driven-hydraulic-power-units <div class="node-body article-body"><p><a href="TP and TV series hydraulic power units" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Yeoshe.jpg" style="width: 233px; height: 285px; float: right; margin-left: 4px; margin-right: 4px;" /></a><a href="http://www.yeoshe.com.tw/upload_files/pdf/yeoshe-Hydraulic_Utin-en.pdf" target="_blank">TP and TV series hydraulic power units</a> feature a variable-speed electric motor driving a piston or vane pump, respectively, to match pressure and flow output to demand. The result is 35 to 65% reduction in energy consumption, noise level of only 50 dB<sub>A</sub>, and low heat generation. Available in four standard sizes from 0.75 kW (1 hp) to 3.7 kW (5 hp) with pumps sized from 8 cc/rev to 42 cc/rev. Also available as SP series, with servomotor drive for 40 to 90% energy savings.<br /> Yeoshe Hydraulics Co. Ltd, <a href="mailto:yeoshe@yeoshe.com.tw?subject=Inquiry%20from%20Hydraulics%20%26%20Pneumatics%20website">yeoshe@yeoshe.com.tw</a>, <strong><a href="http://www.yeoshe.com.tw" target="_blank">www.yeoshe.com.tw</a></strong></p> </div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/inverter-driven-hydraulic-power-units#comments Hydraulic Pumps & Motors Wed, 05 Oct 2016 13:49:00 +0000 40281 at http://hydraulicspneumatics.com The Hydraulic MAINTENANCE Imperative http://hydraulicspneumatics.com/blog/hydraulic-maintenance-imperative <div class="node-body blog-body"><p>Since 2002 I&#39;ve received a LOT of feedback from my Newsletter and blog readers. One question that pops up regularly is:<em> &quot;Why do you give away so much valuable information in your Newsletters and on your web sites?&quot;</em><br /> <br /> Well, I&#39;ve spent the better part of 27 years working in and running hydraulic repair shops i.e. rebuilding hydraulic components. During this time I kept seeing the same pattern:</p> <ul> <li>Failed hydraulic component comes into shop along with concerned customer who wants to know why it has failed after a relatively short time in service.</li> <li>Based on what I saw after tear-down, I would explain the cause of failure - for example, high contamination levels, wrong oil viscosity, high temperature operation, cavitation, faulty circuit protection devices and so on.</li> <li>Customer leaves thousands of dollars poorer with rebuilt component and a hard-learned lesson on hydraulic equipment maintenance.</li> </ul> <p>For as long as there are hydraulic equipment owners, mechanics and maintenance people out there who believe that hydraulics don&#39;t require any special kind of attention, this cycle will continue. In an effort to bridge the knowledge gap on what needs to be done to get maximum life from hydraulic components, I&#39;ve written <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=isthsp"><strong>Insider Secrets to Hydraulics</strong></a>, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=phfsp"><strong>Preventing Hydraulic Failures</strong></a> and <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=thmh"><strong>The Hydraulic Maintenance Handbook</strong></a>.<br /> <br /> Over the past 35 years, the performance, sophistication and operating pressures of hydraulic equipment have increased significantly. This is particularly true in the case of mobile hydraulic equipment. As a result, modern hydraulic equipment is not only more expensive to fix when it breaks, proactive maintenance is essential to maximize service life and minimize operating costs. It&#39;s not realistic to expect (as many equipment owners do) to run a hydraulic machine for 10,000 hours, without checking anything more than the fluid level, and not have any problems.<br /> <br /> Six routines must be followed in order to minimize the chances of your hydraulic equipment suffering costly, premature component failures and unscheduled downtime:</p> <ol> <li>Maintain fluid cleanliness;</li> <li>Maintain fluid temperature and viscosity within optimum limits;</li> <li>Maintain hydraulic system settings to manufacturers&#39; specifications;</li> <li>Schedule component change-outs before they fail;</li> <li>Follow correct commissioning procedures; and</li> <li>Conduct failure analysis.</li> </ol> <p>An effective, proactive maintenance program requires time, effort and some expense to implement. But it is cost-effective. The investment is quickly recovered through savings as a result of improved machine performance, increased component life, increased fluid life, reduced downtime and fewer repairs.<br /> <br /> So if you own, operate or maintain hydraulic equipment, are serious about minimizing your running costs and your current maintenance practices are unsophisticated or non-existent, start implementing a proactive maintenance program today. And <strong><a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr">reading &quot;6 Costly Mistakes Most Hydraulics Users Make and How YOU Can Avoid Them&quot; is a great place to start</a></strong>.</p> </div> http://hydraulicspneumatics.com/blog/hydraulic-maintenance-imperative#comments Hydraulics At Work Tue, 04 Oct 2016 00:22:00 +0000 40271 at http://hydraulicspneumatics.com Empresa Procesadora de Madera Reduce el Consumo de Energía en 70% http://hydraulicspneumatics.com/blog/empresa-procesadora-de-madera-reduce-el-consumo-de-energ-en-70 <div class="node-body blog-body"><p class="rtejustify">La mayor&iacute;a las llamamos paletas de helado y quiz&aacute;s en diferentes pa&iacute;ses de Latinoam&eacute;rica las llamen distinto. Cualquiera que sea el nombre que utilicen, la empresa John Lewis Industries Ltd., ubicada en La Tuque, Canada, las ha estado fabricando desde 1920 y actualmente produce m&aacute;s de 26 millones al d&iacute;a. Tambi&eacute;n producen las utilizadas en la industria m&eacute;dica e igualmente las empleadas&nbsp;para el caf&eacute; y otras bebidas calientes. Aproximadamente el 85% de la producci&oacute;n es para exportaci&oacute;n a nivel mundial.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2013/12/popsicle-sticks.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2013/12/popsicle-sticks.jpg" style="width: 595px; height: 506px; margin: 10px;" /></a>Los palos provienen de Abedul Blanco del Este Canadiense, utilizado principalmente por su color, rigidez y sabor y olor neutro. John Lewis Industries siempre ha estado muy interesado en ser ambientalmente responsable, por lo que se surte de bosques certificados como sostenibles por el <em>Forest Stewardship Council</em>. Por supuesto, tambi&eacute;n est&aacute; muy interesado en conservaci&oacute;n de energ&iacute;a. La corteza de los &aacute;rboles es quemada y utilizada para generar vapor requerido en la planta.</p> <p class="rtejustify">Precisamente en su af&aacute;n de buscar medidas de ahorro de energ&iacute;a, la gerencia lanz&oacute; un proyecto de optimizaci&oacute;n de operaciones con este fin. Luego de realizar los estudios iniciales, consultaron con especialistas energ&eacute;ticos en Bosch Rexroth para revisar en detalle la unidad de potencia hidr&aacute;ulica encargada de accionar la estaci&oacute;n de recepci&oacute;n de madera en la planta.</p> <p class="rtejustify"><strong>&iexcl;No tiene problemas, pero rep&aacute;renla!</strong></p> <p class="rtejustify">La madera llega a planta en troncos de 8 a 10 pies de largo, los cuales son dirigidos a la estaci&oacute;n de recepci&oacute;n donde un levantador autom&aacute;tico los sube y los traslada hacia un molino de pelaje. Este remueve secciones finas de madera en la superficie, luego de lo cual la madera sigue su proceso. Si hubiese una obstrucci&oacute;n en la estaci&oacute;n de recepci&oacute;n, el operador utiliza una gr&uacute;a hidr&aacute;ulica para removerla. El sistema hidr&aacute;ulico de alimentaci&oacute;n de la gr&uacute;a es el mismo que la estaci&oacute;n. Esta unidad en particular fue el enfoque del proyecto.</p> <p class="rtejustify">Debido a lo continuo de la operaci&oacute;n y el requerimiento de productividad, las interrupciones no son aceptables. Rodney Trail de Bosch Rexroth Canada explic&oacute; que para asegurar que el operador pudiese siempre responder con rapidez, los dise&ntilde;adores originalmente especificaron una bomba de caudal fijo operando a velocidad m&aacute;xima. Esto aseguraba que el m&aacute;ximo flujo estuviese disponible para as&iacute; ofrecer una respuesta r&aacute;pida. Cuando la potencia m&aacute;xima no era requerida, el exceso era enviado a tanque. A capacidad m&aacute;xima la unidad de potencia requer&iacute;a 20 kW y 12 kW a carga parcial.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2013/12/Fixed-displacement-pump.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2013/12/Fixed-displacement-pump.jpg" style="width: 250px; height: 217px; margin: 10px; float: right;" title="El reemplazo de un accionamiento con una bomba de desplazamiento fijo por un accionamiento de velocidad variable en una empresa maderera, reduce el consumo energético, ruido y calor – todo sin sacrificar la productividad." /></a>Los especialistas de Bosch Rexroth determinaron que el utilizar una bomba de&nbsp; caudal fijo accionada por un motor el&eacute;ctrico de velocidad variable podr&iacute;a permitir un ahorro sustancial de energ&iacute;a sin afectar la velocidad, potencia o respuesta del sistema. Trail indic&oacute; que su equipo recomend&oacute; la utilizaci&oacute;n del sistema de accionamiento a velocidad variable Sytronix SvP7000 de Bosch Rexroth. El control inteligente IndraDrive reduce la velocidad de la bomba en tiempos muertos o cuando se opera a carga parcial para as&iacute; entregar justamente el caudal requerido por el operador de la grua.</p> <p class="rtejustify">El IndraDrive controla la bomba en un rango de velocidades de 0 a 2,700 rpm, lo que genera caudales de hasta 60 lpm. El conjunto motor-bomba tambi&eacute;n cuenta con un sistema cerrado de control de presi&oacute;n hasta 100 bar y lo mantiene&nbsp; con un margen de error de aproximadamente 0.3 bar.</p> <p class="rtejustify">La conversi&oacute;n fue exitosa desde el inicio. Al operar en modo de carga parcial, la unidad de potencia solo utiliza 2 kW, lo que representa un ahorro energ&eacute;tico del 70%. Trail explic&oacute; que la conversi&oacute;n en s&iacute; fue relativamente sencilla. &ldquo;Las funciones predeterminadas e interfaces abiertas para la comunicaci&oacute;n de comandos simplifican la integraci&oacute;n, incluso con sistemas preexistentes. No se requiere de programaci&oacute;n extensa. Solo se requiere la asignaci&oacute;n de par&aacute;metros para los reguladores definidos.&rdquo;</p> <p class="rtejustify">Tambi&eacute;n es m&aacute;s silencioso.</p> <p class="rtejustify">A pesar de que el consumo energ&eacute;tico es un factor importante, igualmente lo representa el contar con condiciones de trabajo aceptable para los empleados. Adem&aacute;s de obtener ahorro energ&eacute;tico, tambi&eacute;n obtenemos una reducci&oacute;n en el nivel de ruido y una mejor respuesta del sistema. El sistema Sytronix reduce la emisi&oacute;n de ruido por hasta 20 dB y sin la necesidad de implementar medidas adicionales de reducci&oacute;n de ruido. La r&aacute;pida respuesta a cambios en los requerimientos de flujo y presi&oacute;n permiten obtener movimientos de la gr&uacute;a m&aacute;s precisos y facilitan su operaci&oacute;n.</p> <p class="rtejustify">Adicionalmente, el sistema Sytronix reduce el requerimiento de enfriamiento debido a que el fluido hidr&aacute;ulico se calienta mucho menos que con el sistema anterior. Esto extiende la vida &uacute;til del fluido hidr&aacute;ulico. El personal de John Lewis comenta que espera que esta tecnolog&iacute;a se convierta en est&aacute;ndar industrial para unidades de potencia hidr&aacute;ulicas en el futuro. Al observar los beneficios obtenidos, est&aacute;n interesados en extender la aplicaci&oacute;n a otras plantas.</p> <p class="rtejustify"><em style="color: rgb(51, 51, 51); font-family: Georgia, Times, &quot;Times New Roman&quot;, serif; font-size: 15px;">Para mayor informaci&oacute;n en Espa&ntilde;ol, puede contactar a Ricardo Sol&oacute;rzano a&nbsp;<a href="mailto:rsolorzano@eemtechnologies.com?subject=Pregunta%20sobre%20art%C3%ADculo%20en%20H%26P" style="color: rgb(14, 95, 139);">r</a><a href="mailto:rsolorzano@eemtechnologies.com?subject=Pregunta%20sobre%20art%C3%ADculo%20en%20H%26P" style="color: rgb(14, 95, 139);">solorzano</a><a href="mailto:rsolorzano@eemtechnologies.com?subject=Pregunta%20sobre%20art%C3%ADculo%20en%20H%26P" style="color: rgb(14, 95, 139);">@eemtechnologies.com</a>, (855)462-7633,&nbsp;<a href="http://www.eemtechnologies.com/" style="color: rgb(14, 95, 139);">www.eemtechnologies.com</a>.</em></p> </div> http://hydraulicspneumatics.com/blog/empresa-procesadora-de-madera-reduce-el-consumo-de-energ-en-70#comments Other Technologies Food & Beverage H&amp;P en tu idioma! Mon, 03 Oct 2016 12:00:00 +0000 40261 at http://hydraulicspneumatics.com Wireless Control Revamps Truck-Scale Loading Equipment http://hydraulicspneumatics.com/blog/wireless-control-revamps-truck-scale-loading-equipment <div class="node-body blog-body"><p><a href="http://www.tiffincrane.com/" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/09/40803596_scaled_320x240_CMYK.jpg" style="width: 320px; height: 240px; margin: 3px; float: left;" title="The trolley and winch raise and lower the carrier and weights, and load them into the back of the truck onto the cargo scale and calibration system." />Tiffin Loader Crane</a>&mdash;a company in Ohio that creates lifting, loading, and handling solutions&mdash;adopted a wireless motion-control system that integrates directly with its mobile equipment for loading truck- and rail-weighing scales. Combined with proportional electro-hydraulics, the wireless controls improved the accuracy, safety, and motion range of the trolley and winch that load the scale carrier and testing weights into the back of a truck trailer.</p> <div class="related-content"> <div class="related-label">Related Content</div> <p><a href="http://hydraulicspneumatics.com/rail-truck-bus/electronics-control-truck-air-suspensions">Electronics Control Truck Air Suspensions</a></p> <p><a href="http://hydraulicspneumatics.com/maintenance/wireless-transmitter-sends-hydraulic-pressure-data-reading-device">Wireless Transmitter Sends Hydraulic Pressure Data to Reading Device</a></p> <p><a href="http://hydraulicspneumatics.com/news/wireless-control-leads-increased-functionality">Wireless Control Leads to Increased Functionality</a></p> </div> <p>The wireless system was custom-engineered by <a href="https://www.magnetek.com/" target="_blank">Magnetek</a> and <a href="http://www.sgmorris.com/" target="_blank">S. G. Morris</a> to operate with Tiffin&rsquo;s existing scale-loading system for weighing truck and cargo loads against rail or road limits. It leverages a <a href="http://www.magnetekmobilehydraulic.com/products/transmitters/handheld/enrange%20flex%20pro" target="_blank">Flex Pro Transmitter</a> and an <a href="http://www.magnetek.com/MHR" target="_blank">Enrange MHR Radio controller</a> that send radio signals to receivers that energize the hydraulic valves in the winch arm and actuators. In addition to supplying instantaneous control of the winch-arm height and speed, the wireless system can be used to place limits on its movements.</p> <p>When the winch&rsquo;s load-carrying arm reaches a forbidden height, an external limit-switch automatically breaks the command signal to operate the winch coil. In addition, an emergency-stop button on the Flex Pro transmitter can break all signals to a receiver on a blocking valve. This causes the blocking valve to seize all oil flow within the hydraulic system so that the arm will hold its static position.</p> <p>By leveraging hydraulic static pressure, the new system improves the winch&rsquo;s holding power and significantly reduces damage from high-shock loading. Uninterrupted wireless communication with receivers on hydraulic valves enable smoother tracking and lifting motions for the trolley and winch, and decreases the risk of dropped loads. It also smoothes out&nbsp;acceleration and deceleration of the truck ramp.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/09/jt%20crane.jpg" style="margin: 3px; font-size: 12.8px; width: 307px; height: 230px; float: left;" title="JT Cranes' D40 tracked carrier uses the same wireless controls as Tiffin's truck-scale loaders." /></p> <p>As S.G. Morris worked with Tiffin to install Magnetek&rsquo;s controls, it also trained the Tiffin team in learning how to modify the MHR controller to operate with existing valves in the system without the need for programming via an external PC. The installation is expected to improve Tiffin&rsquo;s workflow with an easy-to-use truck load-weighing system with minimal wiring and smooth operation.</p> <p>The Flex Pro Transmitter and Enrange MHR Radio controller are also employed in other loading systems, such as&nbsp;JT Cranes&#39; <a href="http://jtcranes.co.uk/crane/d12-tracked-carrier/" target="_blank">D40 Tracked Carrier</a>&mdash; an&nbsp;automated, ground-level carrier that can transverse up to 40-degree ramps and maneuver&nbsp;tighter workspaces than&nbsp;traditional forklifts. Read more <a href="https://www.magnetekmobilehydraulic.com/Mobile%20Hydraulic/Success%20Stories/JT%20Cranes" target="_blank">here</a>.</p> </div> http://hydraulicspneumatics.com/blog/wireless-control-revamps-truck-scale-loading-equipment#comments Material Handling News Fluid Power Talk Fri, 30 Sep 2016 14:28:00 +0000 40251 at http://hydraulicspneumatics.com Midyear Report Shows Decreases in Ag-Equipment Exports http://hydraulicspneumatics.com/agricultural/midyear-report-shows-decreases-ag-equipment-exports <div class="node-body article-body"><p>The&nbsp;<a href="https://www.aem.org/" target="_blank">Association of Equipment Manufacturers</a> (AEM) released its 2016 midyear report, which cites data from the&nbsp;Department of Commerce. It shows a 12% overall decrease in sales of American agricultural tractors and combines compared to the first half of 2015, for a total $3.45 billion shipped to global markets.&nbsp;</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/news/aem-continues-review-ag-braking-requirements">AEM Continues Review of ag Braking Requirements</a></p> <p><a href="http://hydraulicspneumatics.com/blog/aem-releases-june-midyear-tractor-and-combine-report">AEM Releases June, Midyear Tractor and Combine Report</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hybrid-drive-transmission-surpasses-epa-standards">Hybrid-Drive Transmission Surpasses EPA Standards</a></p> </div> <p>While overall exports were down,&nbsp;agricultural-equipment&nbsp;purchases from the U.S.&nbsp;by Europe and Central America showed growth. European and Central American sales both increased by&nbsp;12% for&nbsp;a total of $1.05 billion and $620 million, respectively.&nbsp;The graphic below show the exports of U.S. farm equipment&nbsp;by world region, with exports to Asia dropping the most percentage points.&nbsp;</p> <p><img alt="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/09/09/AEM%20-%20Exports%20of%20US%20Made%20Ag%20Equipment%20-%20Mid2016.png" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/09/AEM%20-%20Exports%20of%20US%20Made%20Ag%20Equipment%20-%20Mid2016_0.png" style="width: 288px; height: 432px; margin: 3px;" /></p> <p>The countries buying the most U.S.-made agricultural machinery during the first half of 2016 (by dollar volume) were:</p> <ol> <li>Canada - $1.05 billion, down 17 percent</li> <li>Mexico - $557 million, up 14 percent</li> <li>Australia - $234 million, down 26 percent</li> <li>Germany - $145 million, up 10 percent</li> <li>China - $128 million, down 55 percent &nbsp;&nbsp;&nbsp;&nbsp;</li> <li>France - $105 million, down 1 percent</li> <li>Ukraine - $85 million, up 212 percent</li> <li>Brazil - $79 million, down 37 percent</li> <li>United Kingdom - $69 million, down 28 percent</li> <li>Belgium - $67 million, down 29 percent&nbsp;</li> </ol> <p>AEM&rsquo;s director of market intelligence, Benjamin Duyck says the decrease in global sales is likely an effect of the increasing value of the U.S. dollar, making U.S.&nbsp;equipment more expensive. &nbsp;&ldquo;It is important to note that while ag equipment exports might suffer double due to the overall ag downturn, a deterioration in export levels is a nationwide problem. With the global economic malaise, the slowdown in emerging markets and the negative interest rates in several economies&rsquo; bond markets, investment is flowing to the U.S. and U.S. stocks, driving up demand for the U.S. dollar, inadvertently affecting our competitiveness abroad.&rdquo;</p> <p>Download AEM&#39;s reports on&nbsp;construction and agriculture equipment exports <a href="https://www.aem.org/market-data/statistics/us-ag-tractor-and-combine-reports/" target="_blank">here</a>.&nbsp;</p> </div> http://hydraulicspneumatics.com/agricultural/midyear-report-shows-decreases-ag-equipment-exports#comments Agricultural News Wed, 28 Sep 2016 21:23:00 +0000 40241 at http://hydraulicspneumatics.com Courtesy of John Deere Electronics Control Truck Air Suspensions http://hydraulicspneumatics.com/rail-truck-bus/electronics-control-truck-air-suspensions <div class="node-body article-body"><p><a href="http://www.ar.wabco-auto.com/" target="_blank">WABCO</a>&ndash;a supplier of&nbsp;braking, stability-control, suspension, and&nbsp;transmission automation for commercial&nbsp;vehicles&ndash;reports&nbsp;that major Chinese manufacturers continue to increase the adoption of its&nbsp;<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.wabco-2Dauto.com_en_products_category-2Dtype_air-2Dsuspension_chassis-2Dair-2Dsuspension_optiride&amp;d=DQMFaQ&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=3fsV7CFC6BJbd5tYi_9-vWv5Co1Xd2T1-XGR8JEOHIc&amp;m=2riiTLPjz_nms8eDt_mW4eKIAJQHP88jn0Py07MhZPE&amp;s=PZy0o8p97BSEX1fItqBVdHKJ1DpgbrSgIrDx8pwnL_k&amp;e=" target="_blank"><span data-scayt-lang="en_US" data-scayt-word="OptiRide">OptiRide</span></a>&nbsp;electronically controlled air suspension (<span data-scayt-lang="en_US" data-scayt-word="ECAS">ECAS</span>) system in series production of heavy-duty trucks and buses.&nbsp;<span data-scayt-lang="en_US" data-scayt-word="WABCO">WABCO</span>&nbsp;is the only supplier of&nbsp;<span data-scayt-lang="en_US" data-scayt-word="ECAS">ECAS</span>&nbsp;for truck and bus manufacturers in China including&nbsp;<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__en.cnhtc.com.cn_view_index.aspx&amp;d=DQMFaQ&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=3fsV7CFC6BJbd5tYi_9-vWv5Co1Xd2T1-XGR8JEOHIc&amp;m=2riiTLPjz_nms8eDt_mW4eKIAJQHP88jn0Py07MhZPE&amp;s=9qJqXRv5wriU5Fx5BDxlz9tIu9CWOkjO27veFDHHEF8&amp;e=" target="_blank">China National Heavy Truck Corporation (<span data-scayt-lang="en_US" data-scayt-word="CNHTC">CNHTC</span>)</a>,&nbsp;<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.dflzm.com.cn_&amp;d=DQMFaQ&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=3fsV7CFC6BJbd5tYi_9-vWv5Co1Xd2T1-XGR8JEOHIc&amp;m=2riiTLPjz_nms8eDt_mW4eKIAJQHP88jn0Py07MhZPE&amp;s=58UseE5enDq43HqDoewngq34DanCApH4vmFYL2zdyJk&amp;e=" target="_blank"><span data-scayt-lang="en_US" data-scayt-word="Dongfeng">Dongfeng</span>&nbsp;<span data-scayt-lang="en_US" data-scayt-word="Liuzhou">Liuzhou</span>&nbsp;Motor Company (<span data-scayt-lang="en_US" data-scayt-word="DFLQ">DFLQ</span>)</a>&nbsp;and&nbsp;<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.sxqc.com_&amp;d=DQMFaQ&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=3fsV7CFC6BJbd5tYi_9-vWv5Co1Xd2T1-XGR8JEOHIc&amp;m=2riiTLPjz_nms8eDt_mW4eKIAJQHP88jn0Py07MhZPE&amp;s=YRSh5UVu4r0xQWn-3_ZT6YkCFqNkMprVmS9ivHeIWuM&amp;e=" target="_blank">Shaanqi</a>.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/pneumatic-valves/weather-resistant-valves-give-buses-lift">Weather-Resistant Valves Give Buses a Lift</a></p> <p><a href="http://hydraulicspneumatics.com/200/TechZone/PneumaticValves/Article/False/45415/TechZone-PneumaticValves">Dry Air Stands Up to the Cold</a></p> <p><a href="http://hydraulicspneumatics.com/other-components/mining-drill-provides-high-torque-small-space">Mining Drill Provides High Torque in Small Space</a></p> </div> <p><span data-scayt-lang="en_US" data-scayt-word="OptiRide">OptiRide</span>&nbsp;<span data-scayt-lang="en_US" data-scayt-word="ECAS">ECAS</span>&nbsp;technology is an alternative to steel-spring suspension that improves fuel economy up to 3% under certain conditions and enables wider control of vehicle chassis height and levelness. It quickly responds to operator commands, such as lifting and lowering one or both ends of the vehicle chassis in relation to its wheel axes. An electronic control unit (ECU) sends commands to solenoid valves that precisely control air flow to individual suspension bellows at the wheel axes. The ECU also responds to feedback from height and pressure sensors to continuously send air-flow commands to the solenoids and ensure smooth riding&mdash;even on rough roads.</p> <p>Chinese manufacturers are also including OptiRide in their <span style="font-size: 12.8px;">advanced-vehicle platform</span><span style="font-size: 12.8px;">s</span> because of its automatic load transfer (ALT) function that mitigates any axle overload to improve operational costs by minimizing axle wear. ALT will even activate during sudden axle overloading, such wheel slippage on wet roads. When the advanced brake system detects any slippage, OptiRide will transfer pressure to the drive wheel to increase its traction and so the driver can regain a hold on steering.</p> <p>&ldquo;Leading Chinese truck makers are increasingly upgrading their vehicle platforms and axle configurations to be more competitive for long-haul transport and logistics operations,&rdquo; said Sujie Yu, WABCO Vice President, Asia Pacific. She also mentions OptiRide&rsquo;s capabilities to improve vehicle efficiency and safety, while enhancing the driver&rsquo;s comfort.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/09/wabco%20otiride.jpg" style="width: 308px; height: 230px; border-width: 0px; border-style: solid; margin: 3px; float: left;" title="2. Major components of the OptiRide ECAS include an electronic control unit, height sensors, pressure sensors, a solenoid valve block, and a remote controller. " />Major components of OptiRide include the ECU, height sensors, pressure sensors, a solenoid valve block, and a remote controller. The ECU reads data from up to four height sensors and five pressure sensors. Height sensors are mounted onto the vehicle chassis and connected by linkage to the axle housing to provide ride height information. Pressure sensors are connected to the suspension bellows. The solenoid valve block has electrical connections to the ECU and airflow connections to the suspension air bellows.</p> <p>The remote control unit is connected directly to the ECU so that the operator can control the vehicle frame height, particularly during loading and unloading, or connecting to a trailer. The operator can also return the vehicle to a normal riding level, stop all OptiRide functions, and preset up to two separate baseline chassis heights.&nbsp;</p> <p><a href="http://sourceesb.com" style="font-size: 12.8px;" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="font-size: 12.8px; width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/rail-truck-bus/electronics-control-truck-air-suspensions#comments Controls & Instrumentation Rail, Truck & Bus News Tue, 27 Sep 2016 20:52:00 +0000 40231 at http://hydraulicspneumatics.com <p>1. Major Chinese commercial-vehicle manufacturers have adopted WABCO&rsquo;s electronically controlled air-suspension technology, OptiRide on their advanced-vehicle platforms, including CNHTC&rsquo;s heavy-duty truck HOWO.&nbsp;</p> Courtesy of Wabco Two Speeds Keep CTLs on Track http://hydraulicspneumatics.com/construction/two-speeds-keep-ctls-track <div class="field-deck"> Sponsored by Eaton </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/Eaton_logo196x65.gif" style="width: 196px; height: 65px; float: right;" />Compact track loaders (CTLs) have been the fastest-growing segment of the mobile equipment market since the start of the century. With broad, high-flotation rubber tracks, these machines operate on underfoot surfaces that challenge the stability of biggerwheeled machines. Buyers of CTLs, such as contractors, owner-operators, farmers, ranchers, and rental agencies, want faster and more powerful machines to increase productivity.</p> <p>To achieve these goals, a current trend with CTLs is two-speed drives. This is because a typical CTL spends 40% of its time in high-speed mode (transporting and traveling) and 60% in lowspeed mode (digging and doing other high-torque work). The two-speed mode boosts productivity without the substantial cost of a continuously variable transmission.</p> <p>Download <em><strong>FAQs on Two Speeds Keep CTLs on Track</strong></em> sponsored by <strong>Eaton</strong> to get the answers.</p> <script type="text/javascript"> document.write('\ <iframe style="height: 1700px; width: 100%; border:0;” frameBorder="0" scrolling="no"\ src="http://pages.hydraulicspneumatics.com/HP_Digital_Eaton_TwoSpeedsKeepCTLs_WP_JR_092616?partnerref=' + getParameterByName("partnerref") + "&elq=" + getParameterByName("elq2") + "&code=" + getParameterByName("code") + "&PK=" + getParameterByName("PK") + "&PR=" + getParameterByName("PR") + '"></iframe>'); function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); if (match == null) return ""; return match && decodeURIComponent(match[1].replace(/\+/g, ' ')); } </script></div> http://hydraulicspneumatics.com/construction/two-speeds-keep-ctls-track#comments Construction Design FAQs Hydraulic Pumps & Motors Tue, 27 Sep 2016 14:26:00 +0000 40211 at http://hydraulicspneumatics.com