Hydraulics & Pneumatics - Hydraulics & Pneumatics is the leading international technical resource for fluid power http://hydraulicspneumatics.com/rss.xml en FSA Appoints Three New Board Positions http://hydraulicspneumatics.com/news/fsa-appoints-three-new-board-positions <div class="field-byline"> Sarah Mangiola </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Mike%20Shorts%20Headshot.jpg" style="width: 150px; height: 141px; float: right; margin: 3px;" title="President of the Board of Directors, Michael Shorts. (Courtesy of the FSA)" /></p> <p>Michael Shorts has been appointed as President of the Board of Directors for the Fluid Sealing Association (FSA). Currently an active member of the FSA, serving as Chair of the Membership Committee and sitting on several other committees, Shorts is also currently Vice President and General Manger for Triangle Fluid Controls Ltd. in Belleville, Ontario, Canada. Additionally, he is the International Business Development Manager for TFC.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Phil%20Mahoney.jpg" style="width: 125px; height: 167px; float: left; margin: 3px;" title="VP of the Board of Directors, Phil Mahoney. (Courtesy of the FSA)" />Phil Mahoney is the new Vice President of the Board of Directors. Currently the Design Engineering Manager for Compression Packing and Mechanical Seals for the A.W. Chesterton Company in Groveland, MA, he is also the FSA Vice Chair of the Membership Committee, a member of the Government Affairs Working Group, the Marketing Committee, and the Technical Coordinating Committee. He has been active with FSA since 2004.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/RobCoffee2.jpg" style="width: 125px; height: 187px; float: right; margin: 3px;" title="Board of Directors, Robert S. Coffee. (Courtesy of the FSA)" />Additionally, Robert S. Coffee has been appointed to the Board of Directors. He is the Vice President of Sales and Marketing for Proco Products, Inc., in Stockton, California. He is currently serving the FSA as a member of the Marketing and Membership Committees.&nbsp;</p> <p>&nbsp;</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/news/fsa-appoints-three-new-board-positions#comments Seals News Tue, 21 Oct 2014 15:43:00 +0000 29471 at http://hydraulicspneumatics.com HAWE Hydraulics North America welcomes new CEO http://hydraulicspneumatics.com/news/hawe-hydraulics-north-america-welcomes-new-ceo <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Chad%20Tuttle%2C%20CEO%20NA.jpg" style="width: 152px; height: 184px; float: right; margin-left: 4px; margin-right: 4px;" title="Tuttle" /><a href="http://www.haweusa.com/" target="_blank">HAWE Hydraulics</a>, Charlotte, N.C., announced that Chadwick Tuttle has been selected as the new General Manager and CEO for the North American operations of <a href="http://www.hawe.de" target="_blank">HAWE Hydraulik SE</a>, Munich. A news release form HAWE Hydraulics mentioned that Tuttle&#39;s selection &quot;is a clear demonstration of our confidence in his skills and reflects our belief that we are on track to become the global leader in fluid power.&quot;</p> <p>Tuttle brings extensive experience in international fluid handling. Prior to HAWE, Tuttle held high responsibility positions in <a href="https://www.gouldspumps.com" target="_blank">ITT Goulds Pumps</a> and <a href="http://www.spx.com/en/clydeunion-pumps/" target="_blank">Clyde Union Pumps</a>. The news release also expalined, &quot;His particular skills set will be most beneficial for the overall vision of the company, and we are enthusiastic to have Chad join our team!&quot;<br /> <br /> HAWE Hydraulik entered the North Americal martket in 1997 through its North American subsidiary HAWE Hydraulics. Today, the partnership brings more than 60 years of German engineering and experience to North American mobile and industrial markets. HAWE provides integrated services that include design, manufacture, set-up, a distributor network, and local inventory. Based in Charlotte, HAWE has divisions in Portland, Oreg. and Houston. HAWE Hydraulik is an ISO 9001:2001 certified international supplier with a strong focus on supporting rapidly developing niche markets.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/news/hawe-hydraulics-north-america-welcomes-new-ceo#comments News Mon, 20 Oct 2014 13:15:00 +0000 29451 at http://hydraulicspneumatics.com Who DO you trust with YOUR hydraulic machine? http://hydraulicspneumatics.com/blog/who-do-you-trust-your-hydraulic-machine <div class="node-body blog-body"><p>One of my <a href="http://www.hydraulicsupermarket.com/pro-club.html">Hydraulics Pro Club</a> members, who I&#39;ll call John (not his real name) wrote me his story:<br /> <br /> <em>&quot;I&#39;m an owner/operator of a small concrete pumping business. We have 12 years experience operating concrete pumps but limited knowledge of hydraulics. I have no faith in the manufacturer&#39;s dealer. They don&#39;t give away any information and I&#39;m not happy with the work they do. Plus, they&#39;re 6 hours away.<br /> <br /> So I need to gather my own information on hydraulics to become more self sufficient. For example, I&#39;m currently trying to diagnose a problem which I wasn&#39;t aware I had until the manufacturer pointed it out during my last annual boom inspection.<br /> <br /> I&#39;m not sure, but I think the machine has been doing it the whole time we&#39;ve owned it, which is 5 years. When the machine is sitting idling, the swinger-ram pressure is fluctuating between 1200 PSI and 1500 PSI. I&#39;ve asked them what the problem could be. They say: &#39;Bring it in. We need to go through the whole system. Probably a leaking o-ring somewhere.&#39; For reasons already stated, I&#39;m not keen to take the machine to them, with a free hand to &#39;go through the whole system&#39;.&quot;</em><br /> <br /> It&#39;s understandable that John is wary about taking his machine to the dealer. After all, entrusting your livelihood to a bunch of grease monkeys of unknown ability requires a BIG leap of faith. Especially when you consider that, according to the Fluid Power Safety Institute, 98% of people who service, repair and maintain hydraulic systems are not properly trained.*<br /> <br /> So John has good cause to wonder: who is going to be working on my hydraulic machine and do they really know what they&#39;re doing? In other words: can I trust them?<br /> <br /> I&#39;m not a concrete pump expert, but I told John the swinger circuit usually features an accumulator. In which case it would be normal for the pump to unload at 1500 PSI and reload to charge the accumulator when pressure drops to 1200 PSI. That said, if the pump and accumulator are cycling rapidly between 1200 and 1500 PSI, this indicates the accumulator&#39;s gas-end needs attention, or there&#39;s an oil leak in the accumulator circuit.<br /> <br /> It would&#39;ve been no skin off the dealer&#39;s nose to share this insight with John. In fact, it would have given John confidence that they do know what they&#39;re talking about. Trouble is, maybe they DON&#39;T. And that&#39;s the problem for machine owners like John.<br /> <br /> The upshot of all this is, if you don&#39;t do your homework when choosing a hydraulic repair shop, it can cause a lot of heartache. Unfortunately, like most other industries, the hydraulics biz has its share of shoddy and incompetent operators. In chapters 14, 15 and 16 of <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=isthsp">&#39;Insider Secrets to Hydraulics&#39;</a>, I deal with this subject at length: how to choose a hydraulic repair shop; the things to look for when you do; and how to avoid being taken for a ride.<br /> <br /> For me though, the BEST part is knowing <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=isthsp">Insider Secrets</a> is helping hydraulic equipment users, both large and small, all over the world -- something it&#39;s being doing for 12 years now, and counting. In the words of legendary success coach, author and speaker, Jim Rohn:<br /> <br /> <em>&quot;A book is the best investment anyone can make because someone puts 30 years of their life experience into 300 pages and sells it for $30.&quot;</em><br /> <br /> &#39;Insider Secrets to Hydraulics&#39; is this type of book. If you own or are responsible for the upkeep of hydraulic equipment, and you haven&#39;t read it yet, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=isthsp">you can fix that here, now</a>.<br /> <br /> <br /> *Reference: &quot;No Substitute for Safety&quot;, Hydraulics and Pneumatics Magazine, April 2013; p 56.</p> </div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hydraulics-work">Hydraulics At Work</a></li> </ul></div> http://hydraulicspneumatics.com/blog/who-do-you-trust-your-hydraulic-machine#comments Hydraulics At Work Mon, 20 Oct 2014 04:18:00 +0000 29441 at http://hydraulicspneumatics.com October 2014 http://hydraulicspneumatics.com/hydraulics-pneumatics/2014-10-20 <div class="node-body magazine_issue-body"></div> <fieldset class="fieldgroup group-mag-teasers"> <div class="field-mag-teaser"> <a href="/controls-instrumentation/options-add-functionality-motion-controllers">Options Add Functionality to Motion Controllers</a> <a href="/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life">New HPU Gives WWII Sub New Life</a> <a href="/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption">Electrically Powered Gear Pump Slashes Fuel Consumption</a> </div> </fieldset> <fieldset class="fieldgroup group-publication-info"><legend>Publication Info</legend> </fieldset> <div class="og_rss_groups"></div> Mon, 20 Oct 2014 04:00:00 +0000 29461 at http://hydraulicspneumatics.com Marmon/Keystone Celebrates Employees’ Focus on Quality Improvement http://hydraulicspneumatics.com/news/marmonkeystone-celebrates-employees-focus-quality-improvement <div class="field-byline"> Alexis Coffey </div> <div class="node-body article-body"><p>Marmon/Keystone recently held its 23<sup>rd</sup> Annual Quality Renewal Celebration to honor employees&rsquo; work in the Quality Improvement Process. The celebration spanned across all 40 Marmon/Keystone locations where each branch spent half the day participating in recreation, team building, and prize giveaways.<img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/QualityCelebration_0.jpg" style="width: 300px; height: 150px; float: right;" title="Quality Improvement Celebration" /></p> <p>Upon hire employees receive training on how the Quality Improvement Process works and then work on one of the Quality Teams where they identify and complete projects that make Marmon/Keystone processes safer, more efficient and cost effective.</p> <p>Thus far, the teams&#39; efforts have resulted in on-time deliveries of 99.63%, returned merchandise at 0.11% and an average of 544 safety pointes per location.&nbsp;</p> <p><em><strong><a href="https://www.marmonkeystone.com/ecomm/servlet/HomepageServlet" target="_blank">Click here</a></strong></em> to learn more about Marmon/Keystone.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/news/marmonkeystone-celebrates-employees-focus-quality-improvement#comments News Wed, 15 Oct 2014 18:01:00 +0000 29431 at http://hydraulicspneumatics.com Is YOUR Hydraulic Machine A 'Leaker'? http://hydraulicspneumatics.com/blog/your-hydraulic-machine-leaker <div class="node-body blog-body"><p>According to an article by hose manufacturer Gates, it is estimated that 370 million liters of oil leak from hydraulic equipment each year. This is a staggering statistic. And even more so when you consider the same article states that as little as one liter of oil can pollute up to one million liters of water.<br /> <br /> With the above in mind, here&#39;s a &#39;what if?&#39; scenario for you: what if the environmentalists smartened up and lobbied governments to pass a law requiring all hydraulic equipment users to account for and document all deliveries and disposals of hydraulic oil?<br /> <br /> So you&#39;d have an opening volume, then X gallons of new oil deliveries throughout the year and X gallons of used oil sent for disposal during the same period. Any deficit between new oil purchased and used oil disposed of (after any adjustment for volume on hand) would be deemed to have gone into the environment and attract a penalty or fine on a per gallon basis.<br /> <br /> How would your numbers, and more importantly, your deficit look - if you had to account for your hydraulic oil usage?<br /> <br /> The only way you can know how much hydraulic oil each of your machines consumes every year - particularly if you have more than one machine under your supervision, is if you measure and record all top-offs.<br /> <br /> In my experience, most hydraulic equipment users don&#39;t do this. But when clients have done so at my urging, they are often shocked at how much oil a particular machine is actually losing over a year.<br /> <br /> Yeah, I know, it&#39;s one more thing to do. But it&#39;s almost impossible to control anything you don&#39;t measure. And as the late management guru Peter Drucker once said: &quot;What gets measured, gets managed.&quot;<br /> <br /> Of course, it&#39;s not just the cost of make-up fluid and the environmental cost you need to consider. There&#39;s the cost associated with clean-up, proper disposal and the potential safety risks posed by a leaky machine. Plus, where oil can get out, contamination can get in. And as you&#39;re reminded each time you buy a filter element, it costs money to remove contaminants. And even more if you don&#39;t.<br /> <br /> The downtime required to fix leaks can be an issue. But this is often just used as an excuse. At one large plant, the maintenance department had estimated the cost to fix all the hydraulic oil leaks was $28,000. Management were staggered by this figure -- until they were told the current hydraulic oil consumption was around 3 drums per week at a cost of about $1350. In other words, the payback period was only 5 months!<br /> <br /> Bottom line: allowing your hydraulic machine to be, or continue to be, a leaker is a mistake. And there are 6 others you may be making too. To check and eliminate them, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr">get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</a>.</p> </div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hydraulics-work">Hydraulics At Work</a></li> </ul></div> http://hydraulicspneumatics.com/blog/your-hydraulic-machine-leaker#comments Hydraulics At Work Tue, 14 Oct 2014 03:10:00 +0000 29411 at http://hydraulicspneumatics.com Cautious Optimism Among Manufacturers as U.S. Economy Surges http://hydraulicspneumatics.com/news/cautious-optimism-among-manufacturers-us-economy-surges <div class="node-body article-body"><p>According to a recently released report from the <a href="http://www.nam.org" target="_blank">National Association of Manufacturers</a>, the U.S. economy grew an annualized 4.6% in the second quarter of 2014, its fastest pace since the fourth quarter of 2011. In the real gross domestic product (GDP) report, consumer and business spending rebounded quite well after a rather soft first quarter thanks to improved nonresidential fixed investment and goods exports data relative to prior estimates.</p> <p>At the same time, it&rsquo;s hard to forget that real GDP fell by 2.1% in the first quarter, with growth in the first half of 2014 expanding a mere 1.2%. Moving forward, manufacturers remain tend to be upbeat&mdash;for instance, the Markit Flash U.S. Manufacturing Purchasing Managers&rsquo; Index (PMI) held firm at 57.9, its fastest pace since May 2010.</p> <p>Chad Moudray, chief economist for the National Association of Manufacturers, estimates real GDP growth of 3.3% for the third quarter. Downside risks still persist, though, causing tentativeness among business leaders. Regional surveys from the Kansas City and Richmond Federal Reserve Banks continue to show expanding activity levels in their districts.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="/community/guest-editorial-america-s-manufacturing-renaissance">Guest Editorial: America’s Manufacturing Renaissance</a></p> <p><a href="/blog/my-take-economy-technology-and-media">My take on the economy, technology, and the media</a></p> <p><a href="/other-technologies/control-system-integrators-say-industry-outlook-good">Control system integrators say industry outlook is good</a></p></div> <p>The Richmond release reports six straight months of growth since winter-related contractions earlier in the year. It also revealed a surge in production and demand, with the pace of hiring accelerating to its highest level since December 2010.</p> <p>In the Kansas City district, manufacturers remained mostly positive, with more than half of respondents expecting increased production and shipments during the next six months. Issues cited in the Kansas City survey include persistent challenges in attracting and retaining skilled workers, and rising pricing pressures in terms of wages and raw materials.</p> <p>On the global front, the HSBC Flash China Manufacturing PMI edged up from 50.2 in August to 50.5 in September&mdash;the fourth consecutive month with expanding manufacturing activity after contractions in the first five months of the year. Yet, even with some signs of stabilization, it&rsquo;s expected that China will experience decelerating growth rates moving forward.</p> <p>Similarly, the European Central Bank has struggled to cope with slow economic and income growth in the Eurozone, with persistent worries about deflation. For example, the Markit Flash Eurozone Manufacturing PMI eased once again, down from 50.7 to 50.5. This represented the lowest growth level since July 2013, the first month that the Eurozone emerged from its deep two-year recession.</p> <p>Meanwhile, the latest housing data delivered mixed results. New home sales rose sharply from an annualized 427,000 in July to 504,000 in August&mdash;the highest level in more than six years, and more of an anomaly when compared to monthly sales for the year. Thus, it&rsquo;s likely that September figures will pull back a little, but the trend line remains promising.</p> <p>In contrast, existing home sales decreased 1.8% in August, which was probably the result of an inevitable easing after a strong July. Moving forward, the expectation is that existing home sales should move higher, continuing a longer-run trend that goes back to March.&nbsp;</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/news/cautious-optimism-among-manufacturers-us-economy-surges#comments News Mon, 13 Oct 2014 20:23:00 +0000 29401 at http://hydraulicspneumatics.com Courtesy John Moore/Getty Images Ductile Iron Seminar Coming Soon http://hydraulicspneumatics.com/news/ductile-iron-seminar-coming-soon <div class="node-body article-body"><p>The Ductile Iron Society will host a ductile iron seminar, October 28<sup>th</sup>, at the Decatur Conference Center &amp; Hotel, Decatur, Il. This one-day only event is a learning opportunity for OEM and end-user personnel, design &amp; application engineers, and management. The seminar will highlight the benefits and advantages to using ductile iron for weight reduction, improvement in material properties, and replacement of weldments. Sessions include ductile iron basics, casting design and conversions, machining, heat-treating, and a Q&amp;A.</p> <p>The seminar is free and limited to 75 attendees. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p> <p><em>To learn more about the Ductile Iron Society visit <a href="http://www.ductile.org/">www.ductile.org</a></em></p> <div> <p>&nbsp;</p> </div> <p>&nbsp;</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/news/ductile-iron-seminar-coming-soon#comments News Community Mon, 13 Oct 2014 20:03:00 +0000 29391 at http://hydraulicspneumatics.com NFPA Releases Latest Industry Shipment Figures http://hydraulicspneumatics.com/news/nfpa-releases-latest-industry-shipment-figures <div class="node-body article-body"><p>The latest data published by the National Fluid Power Association shows industry shipments of fluid power products for July 2014 increased 10.4% compared to June 2013, and remained the same when compared to last month. Industrial hydraulic, mobile hydraulic and pneumatic shipments increased in June 2014 when compared to June 2013. Pneumatic shipments increased, while mobile hydraulic and industrial hydraulic shipments decreased when compared to last month. These charts are drawn from data collected from more than 80 manufacturers of fluid power products by NFPA&rsquo;s Confidential Shipment Statistics (CSS) program. Much more information is available to NFPA members, which allows them to better understand trends and anticipate change in their market and the customer markets they serve. <em>Contact NFPA at 414‐778‐3344 for more info.</em></p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="/other-components/hydraulic-pneumatic-shipments-down">Hydraulic, pneumatic shipments down</a></p> <p><a href="/cylinders-actuators/class-3-nfpa-hydraulic-cylinders">Class 3 NFPA Hydraulic Cylinders</a></p> <p><a href="/other-technologies/nfpa-announces-2013-fluid-power-systems-conference">NFPA announces 2013 Fluid Power Systems Conference</a></p></div> <p><em><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/NFPA%201.jpg" style="width: 595px; height: 345px; margin: 3px;" title="Each point on this graph represents the most recent 12 months of orders compared to the previous 12 months of orders. Each point can be read as a percentage. For example, 102.6 (the June 2014 level of the industrial hydraulic series) indicates that industrial hydraulic orders received from July 2013 to June 2014 were 102.6% of the orders received from July 2012 to June 2013. (Base Year 2013 = 100)" /></em></p> <p><em><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/NFPA2.jpg" style="width: 595px; height: 344px; margin: 3px;" title="This graph of 12‐month moving averages shows that in July 2014, both hydraulic shipments and pneumatic shipments increased. (Base Year 2013 = 100)" /></em></p> <p><em><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/NFPA3_0.jpg" style="width: 595px; height: 181px;" title="The table above is expressed in terms of cumulative percent changes. These changes refer to the percent difference between the relevant cumulative total for 2014 and the total for the same months in 2013. For example, the June pneumatic shipments figure of 5.6 means that for the calendar year through June 2014, pneumatic shipments increased 5.6% compared to the same time period in 2013. (Base Year 2013 = 100)" /></em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/news/nfpa-releases-latest-industry-shipment-figures#comments News Mon, 13 Oct 2014 19:08:00 +0000 29381 at http://hydraulicspneumatics.com Keeping the Forest Green http://hydraulicspneumatics.com/hydraulic-fluids/keeping-forest-green <div class="field-deck"> National parks, forests, and recreation areas are environmentally sensitive, and naturally great candidates for hydraulic fluids formulated for minimal environmental impact. </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/keeping-forest-green-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/2014/10/keeping%20the%20forest%20green.jpg" style="width: 300px; height: 232px; float: right; margin: 3px;" title="Daryl Ulberg, a heavy equipment operator, pours the first bio-based hydraulic fluid into one of the pieces of heavy equipment he operates and helps maintain. " />The Hiawatha National Forest is geographically tucked between three of the Great Lakes, within the central to eastern portion of the Upper Peninsula of Michigan. To preserve the 879,000 acres of forest, Hiawatha National Forest Fleet manager W. Toby Rhue partnered with Michigan Soybean Promotion Committee (MSPC) Field Operations Director Keith Reinholt to incorporate bio-based products use at the facility in Michigan.</p> <p>&ldquo;I began thinking about how we at Hiawatha could benefit by using these products,&rdquo; says Rhue. &ldquo;I coordinate the management of over 200 pieces of transportation equipment. The positive environmental aspect of these products are important to us in the National Forest Service and we knew, being a part of the U.S. Department of Agriculture, that we would eventually need to comply with the Federal preferential purchasing for bio-based products program.&rdquo;</p> <div class="related-content"> <div class="related-label"> Related</div> <p><a href="/hydraulic-fluids/fluid-does-double-duty-construction-equipment">Fluid Does Double Duty in Construction Equipment</a></p> <p><a href="/forestry-lumber/hydraulic-mulcher-puts-land-clearing-high-gear-0">Hydraulic Mulcher Puts Land-Clearing Into High Gear</a></p> <p><a href="/forestry-amp-lumber/log-harvester-benefits-ball-less-swivel-design">Log harvester benefits from ball-less swivel design</a></p> </div> <p>Rhue began his internal preparations to ensure success in 2006.&nbsp; He conducted a one-day bio-based fuels and lubricant seminar on each side of the Forest. He organized and conducted the seminar with presenters Chris Case, Keith Reinholt and William Gamier of Renewable Lubricants Inc.. In 2007, Rhue met with Forest staff responsible for purchasing supplies, suggested sources for bio-based lubricants and asked individuals planning orders to let others know so that orders could be consolidated. Reinholt suggested that the Hiawatha employees might use even more bio-based products if they were given the right opportunity.&nbsp;</p> <p>Rhue and Reinholt worked out details of the MSPC complimentary sampling program, &ldquo;We got the samples and started using them in the summer of 2008,&rdquo; explains Rhue who points out that, &ldquo;The people who used the products were the ones that decided whether they&rsquo;ll be adopted for use in the future based on how well the products perform and particularly their reliability.&rdquo;</p> <p>Recreation Technician Brenda Madden is in charge of the maintenance of more than 20 recreation sites and facilities in the Hiawatha National Forest. &ldquo;All of the products we used work really well. That includes cleaning products, two-cycle engine oil, and bar-and-chain oil, penetrating oil and hand cleaners.&rdquo;</p> <p>Forest Heavy Equipment Operator Daryl Ulberg reports similar good results for performance and reliability. &ldquo;We are using bio-based hydraulic fluids and grease. These products work just as well as the petroleum-based counterparts.&rdquo;</p> <p>Rhue says that when the Forest was ready to replace two large log skidders and a grader, they asked bidders&rsquo; price quotes to have the equipment delivered &lsquo;with green hydraulic fluid&rsquo;. &ldquo;In other words, we wanted it to come using bio-based hydraulic fluid in the transmission and lift cylinders. The winner of those bids, Caterpillar, agreed to these specifications.&nbsp; These were our first pieces of equipment that have come that way. I&rsquo;m sure it won&rsquo;t be the last,&rdquo; he concludes.</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/keeping-forest-green-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> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hydraulic-fluids/keeping-forest-green#comments Products Forestry & Lumber Hydraulic Fluids Mon, 13 Oct 2014 18:45:00 +0000 29361 at http://hydraulicspneumatics.com Are You Using EtherCAT? http://hydraulicspneumatics.com/other-technologies/are-you-using-ethercat <div class="node-body article-body"><p>EtherCAT is an open industrial Ethernet protocol, with unlimited options for I/O, and the most options for motion applications. Moreover, it&rsquo;s the fastest industrial Ethernet technology, making it the ideal choice for automation applications requiring short cycle times, predictable performance, and synchronized operations.</p> <p>A portfolio of EtherCAT products is now available form <a href="http://www.balluff.us/ethercat" target="_blank">Balluff Inc.</a>, Florence, Ky., including linear position transducers, network blocks, network cables, indicator lights, RFID read/write heads, tags, and processors.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/2014.10-Ideas-EtherCATWEB.jpg" style="width: 300px; height: 595px; float: left;" title="Shown here is a small sampling of EtherCAT products from Balluff. Included are (clockwise, from upper-right) sensors for position monitoring, a traceability module, and a distributed I/O module." /></p> <p>Whether you are in assembly automation, packaging, plastics, research, energy, or any other industry, tracking and communicating data most likely are high on your list of priorities. Requirements demand flexibility for change down the road, which Balluff brings with linear position monitoring, traceability, and distributed modular I/O.</p> <p>Position monitoring is a key technology for automation designs and a necessity when working in precise and synchronized applications. EtherCAT is an ideal network for this arena. Linear transducers can be used to provide closed-loop motion control on the distributed clock or provide basic position measurement for applications that don&rsquo;t require closed-loop control. Balluff offers linear transducers for mounting inside a hydraulic cylinder or externally mounting adjacent to the axis of motion.</p> <p>Traceability is the act of documenting every step in a process chain. Manufacturers use this information to gain visibility to achieve on-time delivery, lean manufacturing, enhanced quality, and regulatory compliance. In addition, it&rsquo;s used to track assets, logistics and material movement. Traceability can be easily implemented over EtherCAT in a number of ways. Using RFID systems native on EtherCAT with proven technology from Balluff makes traceability rather simple to integrate into all types of systems or processes.</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/are-you-using-ethercat-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>Distributed modular I/O with IO-Link gives EtherCAT access to many powerful technologies already available on the market from a variety of vendors. The universal, smart and easy IO-Link technology works like USB for industrial automation and is easily configured in the engineering software with simple byte selections. Key Balluff technologies available with IO-Link are: RFID, non-contact couplers, valve manifold connectors, the Smart Light indicator, and smart sensors.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/other-technologies/are-you-using-ethercat#comments Other Technologies Mon, 13 Oct 2014 15:15:00 +0000 29341 at http://hydraulicspneumatics.com Hose Family Aims at Simplicity http://hydraulicspneumatics.com/hose-tubing/hose-family-aims-simplicity <div class="node-body article-body"><p>The wide variety of hydraulic hose constructions on the market can make selection confusing for both initial specification and aftermarket replacement. (Actually, if an application needs special consideration &mdash; such as high abrasion resistance or survival in a hostile chemical environment &mdash; the choice may be simpler due to fewer options.) Add all of the possible fittings to the component equation and many more products will become available.</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/hose-family-aims-simplicity-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>For general industrial hydraulic applications, <a href="http://www.parkerglobalcore.com" target="_blank">Parker Hannifin&rsquo;s</a> Hose Products Div., Wickliffe, Ohio, has developed GlobalCore to simplify conductor selection. GlobalCore &ndash; a series of five types of hydraulic hose and two series of fittings that match them all &ndash; significantly reduces engineering and service complexity by providing a comprehensive product family that covers the most commonly used constant-working-pressure classes in industry.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/GC-CollectionBWEB.jpg" style="width: 595px; height: 254px;" title="GlobalCore hose and fittings perform at industry’s most common working pressures." /></p> <p>GlobalCore products are built and tested to twice the ISO 18752 specification and provide options that match the most critical pressure ranges and sizes: 3,000 to 6,000 psi, in sizes -4 through -32 (1/4 to 2 in.). Available no-skive covers include standard rubber or two grades of higher abrasion resistance. Synthetic rubber inner tubes are compatible with a wide range of fluids. Fittings are simply chosen to match the hose type selected and the working pressure of the system.</p> <p>The GlobalCore hose design enables it to be bent to half the bend radius of conventional hose. It also requires less force to flex. With such a combination, installation and routing become significantly easier.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hose-tubing/hose-family-aims-simplicity#comments Hose & Tubing Mon, 13 Oct 2014 14:47:00 +0000 29311 at http://hydraulicspneumatics.com The Big 5 for Electric Motors http://hydraulicspneumatics.com/hydraulic-pumps-motors/big-5-electric-motors <div class="field-deck"> Five important points about specifying an electric motor to drive a hydraulic pump. </div> <div class="node-body article-body"><p>Driving the pump of a hydraulic power unit (HPU) is a relatively easy application for an electric motor. However, the relationship between the motor and its power unit is like the relationship between the spark plugs and a car&rsquo;s engine. The plugs are small compared to the engine (and relatively small in cost as well), but the engine stops if the plugs don&rsquo;t perform their function. Similarly, if the motor stops, the hydraulic system goes down. In fact, you rarely hear about electric motors in hydraulic systems &mdash; unless they stop running.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Worldwide%202_web.jpg" style="width: 595px; height: 446px;" title="Standard 10 hp, 1800-rpm, 208-230/460-V, 3-phase electric motor in 215TC frame size with feet. This model is totally enclosed and fan cooled, with a NEMA F-1 mounting for the junction box." /></p> <p>The obvious point is that the electric motor is a critical part of any power unit. Therefore, understanding the basic parameters of electric motors is key when specifying one for a particular HPU application. Five basic factors must be considered:</p> <p>1. <strong>Horsepower</strong> &mdash; the designation of power you need from your system &mdash; 5 hp, 10 hp, 20 hp, etc. Note that a service factor (1.15 on standard units) lets motors run above their rated horsepower for intermittent periods.<br /> Locked-rotor torque, also called startup torque, is an issue when any motor must start under load. The common locked-rotor torque is 100% of full-load torque, but we recommend that you select a motor that is designed to provide a more generous 140% or greater locked-rotor torque.</p> <p>2. <strong>Rotational speed (rpm)</strong> &mdash; how many complete revolutions the motor shaft makes in a 60-second period. Most ac motors run at nominal fixed speeds of 3,600, 1,800, 1,200, or 900 rpm. Most hydraulic pumps for industrial applications are designed to run at 1,800 or 1,200 rpm. These lower-speed motors are more efficient, and have fewer balance problems than those operating a higher speeds.</p> <p>3. <strong>Voltage and phase</strong> &mdash; determined by the electric service that will power the motor. Most motors operate at 230 or 460 Vac, 3-phase. When specifying voltage for an electric motor, always cite the number of phases. Single-phase is normally associated with residential and commercial power, whereas 3-phase is associated with industrial power &mdash; and is most commonly used in power unit applications.</p> <p>4.<strong> Frame size and configuration</strong> &mdash; the National Electrical Manufacturers Association (NEMA) has established detailed standard motor dimensions for interchangeability. The motors on most power units mount to the pumps via flanges and are supported by feet. However, some mountings require no feet. Make sure you specify feet (or base) or no feet (round body) when ordering. (Many designers select direct coupling to attach the motor to a pump because this arrangement saves space.)</p> <p>Also, where is the junction box on the motor? When looking at the motor from the shaft end, the standard location for the junction box on the left hand side (designated an F-1 mount). If you need a motor with the junction box on the right-hand side, make sure that you specify an F-2 mount.</p> <p>Finally, a short shaft (known as a TS frame) should be specified on all 1800- or 1200-rpm motors. This may require a modification of the basic motor. It&rsquo;s important to note that most manufacturers do not stock special motors, so some extra lead time should be expected on F-2 mount, short shaft, or round body models.</p> <p>5. <strong>Enclosure</strong> &mdash; protect the motor&rsquo;s internal parts from moisture, while still allowing cooling. Open drip-proof motors (which are cooled by the outside atmosphere) can be used where ambient conditions are fairly friendly. The more-expensive alternative, totally enclosed fan-cooled motors afford maximum protection even in a hazardous or aggressive environment. After the five basics have been established, you can request several different documents from your motor vendor to help you finalize your selection &mdash; and provide information for the end user if he or she will be someone else.</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/big-5-electric-motors-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>There are four pieces of information that are almost mandatory when dealing with your motor vendor:</p> <p>&bull; <em>A performance data sheet</em> &mdash; This will list all specifications (electrical performance) you need to know about an electric motor.<br /> &bull;&nbsp; <em>Dimensional drawings</em> &mdash; These can eliminate costly errors due to size differences between what your application needs and what the motor vendor provides.<br /> &bull;&nbsp; <em>List of features and benefits</em> &mdash; This will explain the motor&rsquo;s electrical and mechanical features, and help you to make a more accurate comparison between various products from different manufacturers.<br /> &bull;&nbsp; <em>Installation and maintenance manual</em> &mdash; This will provide you with all necessary care-and-feeding instructions for the motor. The information should cover factors such as storage, transport, mounting, balancing, re-greasing the bearings; operating sound levels; and other technical information not found elsewhere.</p> <p>Knowing what to ask for and what to expect from a motor vendor will help ensure that you get the right motor for your hydraulic power unit. If you are subsequently selling the power units, the ability to provide your customers with all necessary intelligence about the equipment they are buying adds real value to the transaction.</p> <p>This information was provided by <a href="http://www.worldwideelectric.net" target="_blank">WorldWide Electric Corp.</a>, Pittsford, N.Y.; (800) 808-2131.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/big-5-electric-motors#comments Hydraulic Pumps & Motors Fri, 10 Oct 2014 20:57:00 +0000 29291 at http://hydraulicspneumatics.com Air Preparation Product Line http://hydraulicspneumatics.com/products/air-preparation-product-line <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Festo%20air%20prep%20MS.jpg" style="width: 200px; height: 179px; float: right;" />MS Series product line for modern compressed air preparation includes pressure regulators, on/off and soft-start valves with safety functions, fillers, pressure and flow rate sensors and lubricators. Service units available in four sizes: MS4, MS6, MS9, MS12.&nbsp; Multiple sizes provide energy savings and cover all flow rate needs. It&rsquo;s modular structure makes components combinable.</p> <p><em><a href="http://www.festo.com" target="_blank">Festo</a>, (866) 463-3786</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/air-preparation-product-line#comments Products Air Compressors Fri, 10 Oct 2014 20:54:00 +0000 29281 at http://hydraulicspneumatics.com High-Pressure Hydraulic Hose http://hydraulicspneumatics.com/hose-tubing/high-pressure-hydraulic-hose <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Eaton%20AQP%20hose.jpg" style="width: 600px; height: 169px;" /></p> <p>Four-spiral EC525 AQP Plus hose features proprietary AQP Plus elastomer compound. The tube and cover compound offers extended hose life, lower maintenance and is compatible with a broader range of hydraulic fluids than standard rubber compounds. The 4-wire hose withstands temperatures from -40&deg;F to 302&deg; F. Available in -12 to -32 (3/4 to 2 in.) sizes. Standard operating pressure for -12 and -16 sizes is 350 bar (5000 psi), -20 and -24 sizes is 241 bar (3500 psi), and 32 size is 224bar (3250 psi).</p> <p><em><a href="http://www.eaton.com/hydraulics" target="_blank">Eaton Corp.</a>, Hydraulics Group, (800) 386-1911</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hose-tubing/high-pressure-hydraulic-hose#comments Hose & Tubing Fri, 10 Oct 2014 20:32:00 +0000 29271 at http://hydraulicspneumatics.com Hydraulic Die-Cushion Drive Can Save Significant Energy on Presses http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-die-cushion-drive-can-save-significant-energy-presses <div class="node-body article-body"><p>Some modern industrial hydraulic systems use closed-loop, variable-speed motors to drive fixed-displacement pumps, instead of using fixed-speed motors to drive variable-displacement pumps.&nbsp;Simple systems just use the motor to vary the flow from the pump in response to load demands. As with conventional HPUs, this setup could provide hydraulic power to several circuits. The higher-end systems use a pump driven by a bidirectional servomotor. The combination is called a servopump. The powerful motors have such quick response that they can drive a cylinder or motor directly &mdash; without having to go through a directional or servovalve. When the system idles, the drive becomes a torque motor, producing just enough flow to compensate for case drainage. Flow, direction, and pressure are monitored and controlled throughout machine cycles.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Voith-ServopumpWEB.jpg" style="width: 595px; height: 293px;" title="The high volumetric efficiency of the servopump contributes to very accurate control of the drive. " /></p> <p>An application of this modern concept is <a href="http://www.voith.com" target="_blank">Voith&rsquo;s</a> CSH die-cushion drive, which consists of a servopump and a double-acting die cushion mounted underneath the bolster plate. Lying at the heart of the drive is the servopump&rsquo;s internal-gear pump that has high volumetric efficiency, permitting highly accurate control. This innovative drive for demanding forming processes needs no valves and reduces energy consumption of the press significantly. &nbsp;</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/hydraulic-die-cushion-drive-can-save-significant-energy-presses-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>With conventional die-cushion drives that combine both a die cushion and pressure-relief valve, the die cushion&rsquo;s work will become irretrievably lost. In relatively stark contrast, the Voith CSH system feeds the mechanical power of the servopump back to the process, through the motor, in the form of electric power.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Voith-CSHWEB.jpg" style="width: 595px; height: 319px;" title="The CSH hydraulic die-cushion drive reduces energy consumption to make high overall-efficiency levels achievable." /></p> <p>This ultimately reduces energy consumption and can reach overall energy-efficiency levels that were previously unattainable. In addition, the servo-hybrid CSH die-cushion drive utilizes a smaller oil reservoir and less oil, and it doesn&rsquo;t require any cooling.<br /> Furthermore, the CSH is freely programmable in terms of speed, force and position control, and acceleration &mdash; making the drive particularly applicable to forming processes involving complex geometries. The accelerated die cushion adjusts to the position-time curve of the ram and, in contrast to a single-acting die cushion, reduces tool impact on the workpiece. This helps improve surface quality, protects both the machine and tool, and prevents damage such as cracks and creases on the workpieces.</p> <p><a href="http://www.voith.com" target="_blank">Voith Turbo GmbH</a> is located in Crailsheim, Germany.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-die-cushion-drive-can-save-significant-energy-presses#comments Hydraulic Pumps & Motors Fri, 10 Oct 2014 20:20:00 +0000 29251 at http://hydraulicspneumatics.com Proportional Control Valve http://hydraulicspneumatics.com/products/proportional-control-valve <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Humphrey%20PC3_0.jpg" style="width: 175px; height: 250px; margin: 3px; float: right;" />The PC3 Valve is a 10-32 threaded, 2-port proportional valve capable of 0-24 lpm flow at 2.3-W maximum power consumption. Designed using a frictionless flat-spring armature. It&rsquo;s available with an inline or manifold mount, with control voltages of 0-10 V or 0-20 V, and in maximum pressure ratings of 100, 50 and 25 psig. The valve is RoHS and REACH compliant and tested to 100 million cycles with fast response, quiet operation, low hysteresis and consistent flow gain.</p> <p><em><a href="http://www.humphrey-products.com" target="_blank">Humphrey Products</a>, (269) 381-5500</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/proportional-control-valve#comments Products Pneumatic Valves Fri, 10 Oct 2014 19:34:00 +0000 29241 at http://hydraulicspneumatics.com Variable-Speed Pump Drive http://hydraulicspneumatics.com/products/variable-speed-pump-drive <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Sytronix%20SVP%207010%20promo_0.jpg" style="width: 300px; height: 169px; float: left; margin: 3px;" />Sytronix SVP 7010 variable speed pump drive offers a performance range up to 120 kW. It uses pre-programmed features to provide high control accuracy and dynamics. Direct-coupled motor-pump assembly reduces overall length 20% and reduces drive inertia 50%. Can be used in open and closed loop hydraulic circuits. Pumps with 2 or 4 quadrant operations are available with 3 levels of performance. Provides energy savings through pump speed reduction during idle and partial load operation. Plus, noise reduction up to 20dB<sub>A</sub>.</p> <p><em><a href="http://www.boschrexroth-us.com" target="_blank">Bosch Rexroth</a>, (800) 739-7684</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/variable-speed-pump-drive#comments Products Hydraulic Pumps & Motors Fri, 10 Oct 2014 19:25:00 +0000 29211 at http://hydraulicspneumatics.com Troubleshooting Challenge: Hydraulic system causes structural failure http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-hydraulic-system-causes-structural-failure <div class="node-body article-body"><p>I was asked to examine and review the circuit design on a walking-beam conveyor system in a pipe mill that had one of two lifting cylinders suddenly drop. This caused one side of the structural frame to fracture, dropping a 60,000-lb coil of &frac12;-in. steel into a pit.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Figure.gif" style="width: 595px; height: 739px;" /></p> <p>Typical walking-beam systems have long horizontal beams that cradle a heavy load &mdash; in this case, several coils of steel. A traverse cylinder moves the beam horizontally into the entry side of a pipe forming mill. All the coils of steel are then raised off the beam vertically and held in this raised position while the traverse cylinder retracts, pulling the horizontal beam in the opposite direction. The coils are then lowered back onto the beam that&rsquo;s been retracted to its home position. Then the traverse cylinder again extends, moving the newly positioned coils closer to the entry position of the mill. This process keeps repeating (walking) the coils into the entry position.</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/troubleshooting-challenge-hydraulic-system-causes-structural-failure-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>When all of the vertical lifting cylinders were told to retract to lower the coils at a slow gentle speed, one cylinder dropped so quickly that a 60,000-lb coil free fell about 18 in. and destroyed the beam&rsquo;s cradle and superstructure.<br /> <br /> <em>Looking at the circuit, what do you think caused this problem?</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-hydraulic-system-causes-structural-failure#comments Cylinders & Actuators Other Industries Fri, 10 Oct 2014 19:23:00 +0000 29221 at http://hydraulicspneumatics.com Pressure Sensor http://hydraulicspneumatics.com/products/pressure-sensor <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Omega%20PX51.jpg" style="width: 300px; height: 141px; margin: 3px; float: left;" />PX51-USBH pressure sensor features a high precision 1kHz 24bit USB core combined with heavy-duty bonded film pressure sensor. USB output allows pressure ranges up to 30,000 psi. It has a stainless steel body with choice of Imperial or Metric pressure ports. The transducer is temperature compensated from 60 to 160 &deg;F and operational between -50 and 185&deg;F. Available in pressure ranges 750 to 30,000 psi. Accuracy is &plusmn;0.025% FS and span, and zero thermal effects are 0.003 and 0.005% FSO/&deg;F.</p> <p><em><a href="http://www.omega.com">Omega Engineering Inc.</a>, (203) 359-1660</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/pressure-sensor#comments Products Fri, 10 Oct 2014 19:21:00 +0000 29201 at http://hydraulicspneumatics.com Solenoid Pneumatic Valves http://hydraulicspneumatics.com/products/solenoid-pneumatic-valves <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Automation%20Direct-Nitra%20AVS.jpg" style="width: 250px; height: 178px; float: right; margin: 3px;" />The Nitra line of pneumatics products adds directional control solenoid valves, providing more choices in size and volume. Configurations include: single solenoid, two-position and double solenoid in two-position, three-position center closed, and three-position center exhaust. There are 10 additional smaller body sizes (1/8-in. NPT ports), 8 additional larger body sizes (1/2-in. NPT ports). Applications include controlling actuators for positioning, clamping, moving product and controlling air volume. Backed by two-year warranty.</p> <p><em><a href="http://www.automationdirect.com">AutomationDirect.com</a>, (800) 633-0405</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/solenoid-pneumatic-valves#comments Products Pneumatic Valves Fri, 10 Oct 2014 19:16:00 +0000 29191 at http://hydraulicspneumatics.com Hose Safety Retention System http://hydraulicspneumatics.com/products/hose-safety-retention-system <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Pirtek%20Whip%20Check.jpg" style="width: 400px; height: 183px; float: left; margin: 3px;" />The Whip Check system is designed to restrain the hose from the &ldquo;Whipping Effect&rdquo; created by the release of energy. The system utilizes a safety cable and clamp assembly to secure the hose to the equipment using high tensile screws.&nbsp; Hose clamp is selected based on the type of hose connection. Cables can be secured to the equipment with a bolt fitted to a Code 61 or Code 62 flange or attach the cable using a steel eyelet/mounting bracket and a high tensile steel bolt.</p> <p><em><a href="http://www.pirtekusa.com" target="_blank">Pirtek USA</a>, (321) 504-4422</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/hose-safety-retention-system#comments Products Hose & Tubing Fri, 10 Oct 2014 19:10:00 +0000 29181 at http://hydraulicspneumatics.com Dual Function Valve http://hydraulicspneumatics.com/products/dual-function-valve <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/The%20Lee%20Co%20281%20PRI%20CHEK.jpg" style="width: 250px; height: 250px; float: left; margin: 3px;" />The 281 PRI/Chek Valve combines the function of a pressure relief valve in parallel with a check valve in one insert. Relief valve function features a Tungsten Carbide ball and 440C seat. The remaining components are stainless steel. Integral safety screens are optional. It&rsquo;s available in a range of relief flow cracking pressures for system pressures up to 5000PSI. Maximum restriction in free flow direction is 300 Lohms (550 Lohms for screened version). Each valve is 100% tested and inspected in both flow directions.</p> <p><em><a href="http://www.theleeco.com" target="_blank">The Lee Co.</a>, (</em><em>860) 399-6281</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/dual-function-valve#comments Products Hydraulic Valves Fri, 10 Oct 2014 19:05:00 +0000 29171 at http://hydraulicspneumatics.com Options Add Functionality to Motion Controllers http://hydraulicspneumatics.com/controls-instrumentation/options-add-functionality-motion-controllers <div class="field-byline"> Jacob Paso, Delta Computer Systems Inc. </div> <div class="field-deck"> A motion-control solution that supports custom feedback capability adds flexibility to systems constrained by the sensor/motion-axes relationship. </div> <div class="node-body article-body"><p>The traditional closed-loop electro-hydraulic control system uses a motion controller that drives an actuator via a proportional servovalve, based on an input from a feedback sensor, for example, the position of a cylinder&rsquo;s piston rod. Although maintaining a one-to-one relationship between sensor and actuator is fine for many applications, limitations to this traditional approach can negatively impact the productivity, reliability and operational cost of other types of machines.</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/options-add-functionality-motion-controllers-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>To remove these limitations, new capabilities are being added to motion controllers that add flexibility in the number and type of feedback devices that can be used, with the ability to perform pre-processing of feedback data before it is used by the control loop. These advances bring new dimensions of precision and reliability to motion systems, and can be grouped under the general term &ldquo;custom feedback&rdquo; <em>(Fig. 1)</em>.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Fig5-RMC150-RMC75.gif" style="width: 595px; height: 335px;" title="Fig. 1. The Delta RMC75 two-axis motion controller (left) and RMC150 eight-axis controller support user-programmed custom feedback options described throughout this article." /></p> <p><strong>Custom Feedback Does The Math</strong></p> <p>Some applications can benefit from mathematical calculations performed on the raw inputs from multiple sensors. Consider, for example, a paper pulp refiner that must precisely control the plate gap through which pulp passes as part of the thermo-mechanical refining process. This can be complicated because the stationary plate can move slightly with changes in temperature and other factors. Because the gap is the difference between the two plate positions, <em>Fig. 2</em>, it is easier for the motion controller to control the difference in plate positions with the control loop, rather than controlling the position of one plate but needing to adjust for position changes of the other plate. With the ability to compute a custom feedback value, controlling to this difference is straightforward.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Fig1-Computing-the-difference.gif" style="width: 300px; height: 180px; float: left;" title="Fig. 2. Computing the difference between plate positions using custom feedback allows the motion controller to focus on controlling the gap between them. In this case, the feedback control variable is determined by subtracting Position 2 from Position 1." /></p> <p>Another example of mathematical pre-processing of sensor inputs simplifies the control of a multi-cylinder press <em>(Fig. 3)</em>. The cylinder forces are measured individually (via load cells or by measuring the differential pressure across the pistons), but the press must control the sum of the forces from all the cylinders. Controlling the total force imparted to the work piece is an important feature for electronic level control of the platen, since each cylinder position is also controlled. Precise level control can even eliminate the need for heavy metal guides to keep the platen level.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Fig2-Feedback-inputs.gif" style="width: 300px; height: 248px; float: left;" title="Fig. 3. Feedback inputs from multiple sensors can be summed to provide the total net force (feedback control variable = F1 + F2)." />Another useful calculation is averaging the data from multiple identical sensors, for example in presses that require extremely accurate force. If the required accuracy is higher than the load cell specifications, then multiple load cells can be averaged. The small differences in load readings between the cells, which can occur at different times and under different environmental conditions, are averaged out. A side benefit of the averaging process is that noise signals on individual load cell outputs would also be reduced by the averaging process.</p> <p>Besides the sum and difference and averaging of feedback inputs, more sophisticated mathematical functions can be applied to raw sensor data. A mathematical calculation can &ldquo;linearize&rdquo; the feedback from a transducer that may respond to stimulus in a non-linear fashion &mdash; to straighten the output of a transducer to make up for a nonlinear response, or to calculate the position of some point that is geometrically related to the transducer measurement. For example, controlling the horizontal position of the end effector attached to a swing arm in a robotic material handler, Fig. 4, may involve working with raw position feedback that is available from the cylinder only. The position of the end effector can be calculated by applying a trigonometric equation to the cylinder position using custom feedback processing.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Fig3-Custom-feedback.gif" style="width: 300px; height: 234px; float: left;" title="Fig. 4. Custom feedback processing can reconcile nonlinear relationships between feedback directly reflecting cylinder position and the position of a separate point of interest, such as a robot arm-end effector. In this case, the control variable might be calculated as 1.678 × cos (0.0378 × position) + 43." /><strong>Switching Overcomes Sensor Problems</strong></p> <p>Logical functions can also be applied to enable switching between feedback sources. This capability is critical for constructing highly reliable fail-safe systems. Consider the value of connecting a control loop to multiple identical sensors, so that if one of the feedback devices fails, the system can continue operating without interruption.</p> <p>This fail-safe configuration is helpful in applications such as stamping machines that exhibit severe vibration and noise. Sensor failures can happen without warning, resulting at best in a period of downtime while the sensor is replaced. At worst, a sensor can fail without being noticed and cause damage or affect product quality before the problem is detected. Usually, the motion controller electronics can be segregated to the safety of a remote panel, but the sensor itself typically needs to be located right where the action happens &mdash; on a press ram, for example. With feedback-switching, when the controller detects that one sensor is going bad, it seamlessly switches to another sensor, even in the middle of a motion operation.</p> <p>Feedback switching is also useful in testing applications that employ multiple transducers in order to provide the desired resolution over a range of measurement that is wider than the range of any single transducers, or in order to provide a higher degree of measurement sensitivity over a small range with the ability to make measurements over a much broader range at a lower sensitivity.</p> <div class="related-content"> <div class="related-label"> Related</div> <p><a href="http://hydraulicspneumatics.com/products/motion-controller-provides-synchronized-motion-multiple-axes">Motion Controller Provides Synchronized Motion of Multiple Axes</a></p> <p><a href=" http://hydraulicspneumatics.com/controls-amp-instrumentation/testing-electrohydraulic-motion-control-system">Testing an electrohydraulic motion control system</a></p> <p><a href=" http://hydraulicspneumatics.com/200/TechZone/SystemInstrumen/Article/False/87468/TechZone-SystemInstrumen">Using motion controllers for speed control, part 7</a></p> </div> <p>An example of the latter is an assembly strength testing machine. Designers of equipment such as this often struggle with meeting the diametrically-opposed requirements of a large measurement range and high accuracy. Achieving high accuracy is relatively simple for a small measurement range, but not so for a large range. If sensors with sufficiently high accuracy over a wide range even exist, they will be very expensive.</p> <p>If multiple pressure sensors of different sensitivity ranges are installed, however, the accuracy of each sensor needs only account for one range, not the entire range <em>(Fig. 5)</em>. If we allow for lesser accuracy (in absolute terms) in the larger pressure ranges and higher accuracy in the smaller ranges, then the required sensor accuracy, and hence the overall sensor cost, is greatly reduced.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Fig4-When-redundant-sensors.gif" style="width: 300px; height: 139px; float: left;" title="Fig. 5. When a redundant sensors fails, the motion controller can use the feedback from the good one to let the machine keep running. Alternately, if different sensors with different sensitivity ranges are used, then the system may have a broader measurement range or heightened accuracy compared to a system with a single sensor." />Another application that benefits from feedback switching is a deep-draw metal forming press, where it is possible to increase resolution over a critical range by having the motion controller do pre-processing to selectively combine inputs from a short-stroke, high-resolution feedback device with a long-stroke, coarse-resolution device, so they look like one feedback device to the control loop. This is a much more economical solution to the need for precise measurements over a certain range compared to the cost of using a sensor that responds with high-precision results over the entire range of operation.</p> <p><strong>Handling Custom Feedback</strong></p> <p>Two motion controllers with custom feedback processing capability are the RMC75 two-axis controller and RMC150 eight-axis controller manufactured by <a href="http://www.deltamotion.com/" target="_blank">Delta Computer Systems Inc.</a> <em>(Fig. 1, again)</em>. When programming these controllers, axes defined with custom feedback do not have an assigned physical feedback (i.e., direct connection to I/O). Rather, they use the contents of internal registers as feedback variables. The machine designer creates a user program that continuously calculates the feedback value and assigns it to the appropriate register, whose contents are in turn used by the motion controller&rsquo;s control loop. The ability to employ user programs gives users the flexibility to perform any logic functions and calculations necessary for precise closed-loop control.</p> <p>User programs carry out complex sequences of commands on the Delta RMC controller without requiring intervention from a PLC or other controller. This allows the controller to respond to events within its control-loop time, which can be as short as one millisecond, rather than the scan rate of a PLC, which can be more than ten times longer, imparting latency delays and limiting the speed of the process that can be controlled. Incorporating the feedback processing function into the motion controller also reduces the amount of PLC programming required. The number of user programs supported by Delta&rsquo;s controllers is only limited by the memory capacity of the controller.</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/options-add-functionality-motion-controllers-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>With these design hints in mind, designers of systems limited by the constraint of the 1:1 relationship between sensors and motion axes should seek out a motion control solution that supports custom feedback capability, which gives the flexibility to use feedback from a source or sources other than directly from a hardware input.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/controls-instrumentation/options-add-functionality-motion-controllers#comments Controls & Instrumentation Other Components Fri, 10 Oct 2014 16:40:00 +0000 29151 at http://hydraulicspneumatics.com Direct-Drive Radial-Piston Motor http://hydraulicspneumatics.com/products/direct-drive-radial-piston-motor <div class="node-body article-body"><div> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Eaton%20Hydre-Mac%20motor.jpg" style="width: 200px; height: 192px; float: left; margin: 3px;" />The<a href="http://www.eaton.com/hydre-mac" target="_blank"> Hydre-Mac </a>direct-drive radial-piston motor handles variable-speed applications requiring less energy to deliver more power. The low-speed, high-torque motor, featuring a cam-lobe design, was created using a MacTaggart Scott heavy-duty motor design. The motor increases component life with two inlet and outlet ports that reduce pressure drops at high power; generating less heat overall, and through a symmetrical 18 piston/roller assembly, which eliminates piston side loading and reduces wear and tear. Hydre-MAC&rsquo;s repairable wear surfaces include shaft seals, wear rings, piston seals, and bearing pads that can be replaced on-site.</p> </div> <p><a href="http://www.eaton.com/Eaton/index.htm" target="_blank">Eaton Corp.</a>, Hydraulics Group , (888) 258-0222</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/direct-drive-radial-piston-motor#comments Products Hydraulic Pumps & Motors Fri, 10 Oct 2014 16:30:00 +0000 29141 at http://hydraulicspneumatics.com Pneumatic Twin-Piston Semi-Rotary Drive http://hydraulicspneumatics.com/products/pneumatic-twin-piston-semi-rotary-drive <div class="node-body article-body"><p><a href="http://www.festo.com/cms/en-us_us/17680.htm" target="_blank">DRRD</a> twin-piston pneumatic rotary actuators use rack-and-pinion assembly for high torque and rotational speed in a compact package. Ideal for material handling and assembly operations, it offers a high load capacity with torque from 0.2 to 112 Nm and a maximum mass moment of inertia of up to 420,000 kgcm<sup>2</sup>. These features allow smaller sizes of this semi-rotary drive to be used without sacrificing power, saving money and space in handling and assembly technology or in machine building. Standard rotational output is 180&deg; but is adjustable from 0 to 200&deg;.</p> <div class="related-content"> <div class="related-label"> Related</div> <p><a href="/hydraulic-valves/smart-compact-actuator-mobile-hydraulics-valves">Smart, Compact Actuator for Mobile Hydraulics Valves</a></p> <p><a href="/cylinders-amp-actuators/fixed-connection-air-actuators">Fixed-connection air actuators </a></p> <p><a href="/cylinders-amp-actuators/50-years-ago-cylinders-actuate-power-mower">50 years ago: Cylinders actuate power mower</a></p> </div> <p>Size 16 and above in the DRRD series has the option of an end-position lock for mechanical locking in the end of mid-position. Other options in the series include: a fully sealed variant for wet or dusty environments; an external position sensing version with sensor mounting; an intermediate positional model; one external and two internal cushioning model; and, an energy through-feed model that allows for fast and easy supply of electrical signals or compressed air transfered via a hollow shaft.&nbsp;&nbsp;</p> <div> <p><a href="http://www.festo.com/cms/en-us_us/index.htm" target="_blank">Festo</a> Corp., (866) 463-3786</p> </div> <p>&nbsp;</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/pneumatic-twin-piston-semi-rotary-drive#comments Products Fri, 10 Oct 2014 16:23:00 +0000 29131 at http://hydraulicspneumatics.com Absolute Linear Position Transducer http://hydraulicspneumatics.com/products/absolute-linear-position-transducer <div class="node-body article-body"><p>Measurement Specialties&rsquo; new <a href="http://meas-spec.com/product/t_product.aspx?id=11156" target="_blank">PT420</a> absolute linear position transducer, has a full-scale measurement range from 2 in. to 100 in. with infinite output resolution. Its two output signals, 2-wire 4-20 mA and 3-wire 0-20 mA, provide a feedback signal linearly proportional to the position of its extension cable. The sensor is a classic string pot design and is suitable for many industrial automation and testing applications. It can be used for measuring position on hydraulic cylinders and other linear displacement measuring applications.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="/controls-instrumentation/sensor-sets-table-simplicity">Sensor Sets the Table in Simplicity</a></p> <p><a href="/products/linear-position-sensor-extreme-environments">Linear-position sensor for extreme environments</a></p> <p><a href="/controls-instrumentation/inductive-linear-displacement-sensors">Inductive linear-displacement sensors</a></p></div> <p>Repeatability is &plusmn;0.05% full stroke and accuracy to &plusmn;0.15% full stroke for most ranges. It operates from -40&deg;C to +90&deg;C and can withstand 10 G of vibration to 2,000 Hz maximum. A DIP-switch setting enables output signal direction to be reversed. To ensure signal values match up with the beginning and end stroke points, users can adjust the zero and span trim pots. The product is encased in a IP50 NEMA 1 rated anodized aluminum house, is less than 5 inches high when cable is retracted, and weighs less than 2 lb.&nbsp;</p> <p><a href="http://www.meas-spec.com/" target="_blank">Measurement Specialties</a>, (757) 766-1500</p> <p>&nbsp;</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/products/absolute-linear-position-transducer#comments Products Fri, 10 Oct 2014 15:56:00 +0000 29101 at http://hydraulicspneumatics.com Hydraulic Traction Circuit Treats Golf-Course Greens Gently http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-traction-circuit-treats-golf-course-greens-gently <div class="node-body article-body"><p>Greens on golf courses are &nbsp;mowed early in the morning &mdash; when the turf usually is slippery from dew or irrigation &mdash; and a greenskeeper must be able to drive a mower anywhere on and around the green without losing traction or damaging the turf. However, many riding mowers will slip during turns in the sculptured trim area around the green or when climbing minor grades on the green.</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/hydraulic-traction-circuit-treats-golf-course-greens-gently-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>In the traditional greensmower design, hydraulic motors on each driven wheel are piped in parallel. But this configuration means that when one tire slips, all the motors stop. Another issue is that cutting reels are self supporting on the ground, so the weight on the front wheels is minimal during mowing, adding to the possibility of slippage. As a result, even minor rises can be difficult to climb straight-on and impossible to negotiate on a diagonal line.</p> <p>To solve this maneuvering problem, <a href="http://www.thetorocompany.com" target="_blank">The Toro Co.</a>, Bloomington, Minn., has designed and patented a hydraulic traction circuit that enables a groundskeeper to easily manicure golf greens with the speed and convenience of a riding mower. The traction arrangement on Toro&rsquo;s Greensmaster riding mower has a triplex configuration, with two drive tires in front and a steering tire in back. Its hydraulic circuit plumbs the front wheel motors in parallel with each other, then adds a third motor at the rear wheel and plumbs it in series with the front two. The rear motor has twice the displacement of each front motor, and the tires mounted on all three wheels are the same size to maintain the correct speed ratio.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Sidebar-1a.jpg" style="width: 255px; height: 190px; float: right; margin-left: 4px; margin-right: 4px;" title="Toro’s Greensmaster riding mower uses a patented triplex hydraulic traction system to manicure golf-course greens even when they are wet and slippery. Click on image for larger view." />With Toro&rsquo;s circuit, the machine will continue to move on wet or uneven turf until one front tire and the rear tire slip. Traction while climbing grades, especially on a diagonal line, is significantly improved compared to 2-wheel drives or simple parallel 3-wheel drive systems, because Toro&rsquo;s rear wheel will continue to push even if a front tire loses traction. In addition, rear-wheel traction is improved because weight transfers from the front wheels to back when going uphill.</p> <p>It is difficult in almost any drive configuration to maintain the correct speed ratio between the front and rear tires during turns. The tricycle layout of the Greensmaster means the rear wheel must turn faster than the average of the two front wheels while turning. In the patented Toro system, an overrunning clutch allows the rear tire to overspeed during turns to maintain gentle, even traction.<br /> Toro designers also paid extra attention to protecting the turf from hydraulic leaks. The Greensmaster has fewer hydraulic lines, monoblock connections, and a centrally located bulkhead mounting. These machines also are ready to accept bio-friendly hydraulic oil if the user chooses to install it.</p> <p>Another patented Toro system, Turf Guardian, monitors the hydraulic oil level. A miniature hydraulic tank sits atop the main tank. Should the level in the small tank go down, an alarm signals the operator to stop the machine. By following this procedure, leaks usually are limited to a few ounces.</p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-traction-circuit-treats-golf-course-greens-gently#comments Hydraulic Pumps & Motors Fri, 10 Oct 2014 15:51:00 +0000 29111 at http://hydraulicspneumatics.com Electrically Powered Gear Pump Slashes Fuel Consumption http://hydraulicspneumatics.com/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption <div class="field-byline"> Ray Scroggins, Scroggins Associates </div> <div class="field-deck"> Using batteries to drive an electric motor, the hydraulic power unit of Versalift bucket lifts run cleaner and quieter, while resulting in significant fuel savings over their powertrain-driven counterparts. </div> <div class="node-body article-body"><p>Utility workers use aerial bucket lifts to install and maintain transmission lines and equipment for lighting, traffic control, telephone, and cable services. These lifts are extended and positioned by hydraulic cylinders that are powered by pumps driven by the vehicle&rsquo;s engine through a power takeoff or clutch pump system. Although bucket lifts that use this conventional approach are effective for operations such as tree trimming, which require frequent motion, a utility technician may stay aloft in one location for long periods without a need to move the bucket as often. Idling the truck&rsquo;s engine during these periods of inactivity wastes fuel and creates unnecessary pollution.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/lead_1.jpg" style="width: 595px; height: 382px;" title="An electric version of the Versalift bucket lift comes in three sizes with a variety of options to match job requirements. It can operate for up to an hour without running the vehicle’s engine, thus dramatically reducing fuel consumption." /></p> <p>A new Versalift, built by <a href="http://www.versalift.com">Time Mfg. Co.</a>, Waco, Texas, addresses this problem by driving its hydraulic pump with an electric motor that receives power from separate onboard batteries. The self-contained electrohydraulic package itself operates the vehicle&rsquo;s aerial lift with high efficiency, but the fuel savings from not running the vehicle&rsquo;s engine can be staggering. The powerful system operates bucket, tools, and outriggers at normal speeds and provides full flow for hydraulic circuit operation of tools. Depending on the battery system and charging method, run times of 40 to 60 minutes are typical between charge cycles. This is sufficient for most operations because the batteries are recharged by the vehicle&rsquo;s alternator while driving to another location. When equipped with an optional auto-start module, the vehicle will turn on and off automatically to charge the batteries when necessary.</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/electrically-powered-gear-pump-slashes-fuel-consumption-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><strong>How it Works</strong></p> <p>At the jobsite, the operator turns off the chassis engine, sets the parking brake, and turns on the aerial master control switch to ready the aerial lift for work. When the operator activates the controls, a series of on-demand switches located on various hydraulic valves activate the motor/pump.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Versalift-3.jpg" style="width: 595px; height: 525px;" title="Three 12-V absorbed glass mat batteries wired in series drive a dc electric motor-hydraulic gear pump assembly that can produce up to 3 gpm of hydraulic flow at pressures 2250 psi." /></p> <p>The electric drives on the electrohydraulic Versalift models are available with three different voltages to meet a range of lift hydraulic requirements. A 12-V system uses two 12-V absorbed glass mat batteries wired in parallel and a 12-V dc motor to provide 2 gpm @ 2000 to 2500 psi.&nbsp; A 36-V system uses three of the batteries wired in series and a 36-Vdc motor to provide 3 gpm @ 2250 psi for the lift or 5 gpm @ 2000 psi for hydraulic tools. A 48-V system uses four of the batteries wired in series and a 48V DC motor to provide 6 gpm @ 3000 psi. All systems use a high-efficiency hydraulic pump, and all batteries are sealed and maintenance-free. <em>(For another type of hydraulic motor solution, check out &quot;<a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-traction-circuit-treats-golf-course-greens-gently" target="_blank">Hydraulic Traction Circuit Treats Golf Course Greens Gently</a>.&quot;)</em></p> <div class="related-content"> <div class="related-label"> Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life">New HPU Gives WWII Sub New Life</a></p> <p><a href=" http://hydraulicspneumatics.com/hydraulic-pumps-amp-motors/rightsize-your-electric-motors">Rightsize your electric motors</a></p> <p><a href=" http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/85649/TechZone-HydraulicPumpsM">Pump offers utility for trucks</a></p> </div> <p>The chassis alternator is the primary charging source for the 12-V system &mdash; through a battery separator/isolator &mdash; with optional (110/220 Vac input) shore power charging available. Shore power (recharging from an ac power line) is the primary charging source for the 36-V and 48-V systems, with an optional converter available to allow charging from the chassis alternator. The system operates on-demand so the 40 to 45 minutes of actual run time available from the battery system typically is twice what a normal daily operation would be. Shore power is used for charging at the end of the day, usually when the vehicle is back at the garage. Run time can be affected by the age of the batteries, environmental conditions, and duty cycle.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/IMG_8261_0.jpg" style="width: 595px; height: 446px;" title="The most powerful version of the electric Versalift uses a 48V-dc electric motor driving a Marzocchi GHP2A hydraulic gear pump." /></p> <p>Approximate run times are as follows, based on a 70&deg; F temperature and a fully charged system:</p> <p><em>12-V System:</em> 2 gpm @ 2000 psi max: 60 minutes of movement<br /> <em>36-V System:</em> 3 gpm @ 2250 psi max: 45 minutes of movement<br /> <em>48-V System:</em> 6 gpm @ 3000 psi max: 40 minutes of movement</p> <p><strong>Models and Options Meet Market Needs</strong></p> <p>The electric drive systems are available in many Versalift models, each with some choices between insulated and non-insulated booms and end-mounted or side-mounted boom configurations. Maximum working height varies from approximately 34 to 58 ft, depending on the model. Several other options provide added flexibility for specific application requirements.</p> <p>Nine standard models are available in combinations that are insulated or non-insulated, end mounted, and with hydraulic controls. The insulated models feature Time Manufacturing&rsquo;s patented Electroguard design that provides a 42-in. insulation gap in the fully retracted position. The SST-37/40, all VST models, and T-30/34 are available with hydraulic tools at the platform.</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/electrically-powered-gear-pump-slashes-fuel-consumption-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>An optional auto-start module will start the chassis engine automatically when either the electric drive or chassis battery becomes depleted. It is used in conjunction with an optional secondary hydraulic source or a dc/dc converter with 36-V and 48-V systems. The dc/dc converter is used when the engine is running to boost the incoming 12-V chassis battery voltage to the 36-V or 48-V output needed to charge the electric drive batteries. The secondary hydraulic source can be added with a traditional power takeoff or clutch pump to allow for situations where the run time of the electric drive is exceeded or for high-demand events. For all electric drive systems, a gauge shows the energy available in the electric drive battery.</p> <p><em>Ray Scroggins is a technical writer and president/owner of Scroggins Associates. Contact him at </em>(920) 261-7968<em>, or email ray@scroggins.biz.</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption#comments Other Industries Hydraulic Pumps & Motors Thu, 09 Oct 2014 20:53:00 +0000 29081 at http://hydraulicspneumatics.com New HPU Gives WWII Sub New Life http://hydraulicspneumatics.com/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life <div class="field-byline"> Joseph Kane, Bosch Rexroth </div> <div class="field-deck"> A team restoring a vintage submarine docked at San Francisco’s Fisherman’s Wharf wanted a more efficient and easier-to-operate system for operating a periscope, torpedo doors, and other hydraulic functions. They found it in a modular hydraulic power unit from Bosch Rexroth. </div> <div class="node-body article-body"><p>A popular attraction at San Francisco&rsquo;s historic Fisherman&rsquo;s Wharf is its World War II submarine, the USS Pampanito. More than 110,000 people visit the Pampanito annually, a Balao-class submarine which had six combat patrols in the Pacific War and is now a U.S. National Historic Landmark. Operated by the non-profit San Francisco Maritime National Park Assn., the Pampanito has been restored by association volunteers to a specific point in time, late 1945, to represent the height of WWII submarine development. This restoration effort includes making key submarine systems fully functional, so visitors can see the periscope raised and lowered and torpedo doors opened and closed. To accomplish this goal, the Pampanito needs efficiently functioning hydraulics &mdash; and <a href="http://www.boschrexroth.com/en/us/" target="_blank">Bosch Rexroth,</a> Charlotte, N.C., contributed a custom-configured RexPak hydraulic power unit (HPU) to help bring the boat&rsquo;s hydraulics back to life.</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/new-hpu-gives-wwii-sub-new-life-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><strong>Working Memorial to the Pacific War</strong></p> <p>Since the association took possession of the boat in 1976, it has undergone multiple restoration projects &mdash; including four separate dry-dock visits. Almost all of the boat&rsquo;s systems have been restored; as a result, much of its on-board electrical and mechanical equipment is now functional. &ldquo;As much as possible, we try to utilize 1940s era technology for the restorations,&rdquo; said Richard Pekelney, secretary on the association&rsquo;s board of trustees. &ldquo;However, for some systems, we find it&rsquo;s more effective for us to incorporate modern equipment.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/DSCN3013.jpg" style="width: 595px; height: 460px;" title="The historic World War II-era submarine USS Pampanito recently had its hydraulic systems upgraded with the installation of a Rexroth RexPak hydraulic power unit. The HPU operates the periscope drive, torpedo doors, and bow planes." /></p> <p>Three of the sub&rsquo;s hydraulic systems have been restored to working condition: the external bow planes used in navigating the ship; the torpedo tube doors; and the ship&rsquo;s periscope. Until recently, hydraulic power was supplied to this equipment by the boat&rsquo;s original air-over-hydraulic power unit. This HPU pumped high-pressure air into a hydropneumatic accumulator to transmit the hydraulic flow and pressure necessary to operate the equipment.</p> <p>However, the air-over-hydraulic system presented some limitations. It took up to a full day to get the high-pressure air system running. Furthermore, safety considerations required proper training for its operation, which usually required the assistance of a naval veteran with background in operating pneumatic and hydraulic systems. Volunteers provide virtually all the restoration, maintenance, and operation work performed on the Pampanito, so keeping the pneumatic-hydraulic system running was problematic, limiting the times it could be operated. A former Navy submariner who volunteers on the sub decided to find a better, simpler solution. All it took was a hand-drawn sketch on a piece of paper.</p> <p><strong>One Volunteer&rsquo;s Passion for the Pampanito</strong></p> <p>Charlie Butcher is Equipment Manager for <a href="http://www.mansonconstruction.com/" target="_blank">Northern California at Manson Construction Co.</a>, Seattle, one of the nation&rsquo;s leading heavy civil marine construction and dredging companies. He&rsquo;s also a retired U.S. Navy Master Chief Petty Officer and submariner with 30 years of service in the U.S. Navy and Navy Reserves. Manson Construction has long supported the restoration and historic operation activities of the Pampanito as a museum boat by taking care of moorings and other maintenance.</p> <div class="related-content"> <div class="related-label"> Related</div> <p><a href=" http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/21794/TechZone-HydraulicPumpsM">Mini hydraulic power unit makes roughing it luxurious</a></p> <p><a href=" http://hydraulicspneumatics.com/bookstore/use-pwm-control-output-pressure-hydraulic-power-unit">Use PWM to Control Output Pressure of a Hydraulic Power Unit </a></p> <p><a href=" http://hydraulicspneumatics.com/controls-instrumentation/vfds-help-hpus-be-more-efficient">VFDs help HPUs be more efficient</a></p> </div> <p>&ldquo;Initially, I wanted to find a simple pressure-compensated hydraulic pump to raise the periscope,&rdquo; said Butcher. In discussions with Pekelney, it became clear that being able to open the torpedo tube doors and move the boat&rsquo;s bow planes, (which would make it easier to perform hull maintenance when the submarine goes into dry-dock) were priorities as well.</p> <p><strong>A New HPU</strong></p> <p>As Butcher and Pekelney refined their hydraulics requirements, Butcher contacted Bill McDaniel, account manager at <a href="http://www.hydraulic-controls.com/index.html" target="_blank">Hydraulic Controls, Inc.</a>, Emeryville, Calif. Hydraulic Controls is a leading supplier of hydraulic components in the Pacific Southwest and a Bosch Rexroth distributor. That&rsquo;s where the sketch comes in. &ldquo;We knew we would need a larger solution than just a simple pump,&rdquo; Butcher said. &ldquo;I knew the boat&rsquo;s hydraulic systems, so I made a little design sketch and sent it to everybody to see what we could work out.&rdquo;</p> <p>According to McDaniel, Butcher&rsquo;s sketch and descriptions of the boat&rsquo;s hydraulics requirements led him to consider several options. &rdquo;At first, we looked at using a closed-coupled motor package,&rdquo; he said. &ldquo;But after consulting with Rexroth, we decided that the RexPak hydraulic unit was a better option. We could supply a complete package, test it, make sure everything was good to go, and ship them the whole system.&rdquo;</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/RexPak-dockside.jpg" style="width: 595px; height: 460px;" title="Bill McDaniel, of Hydraulic Controls Inc. (left), and Charlie Butcher, of Manson Construction Co., stand behind the complete RexPak hydraulic power unit dockside." /></p> <p>The RexPak hydraulic power unit bridges the gap between standard products and custom-engineered power units. Designed for a variety of applications that require hydraulic power up to 75 hp, with flow to 65 gpm, and operating pressure to 3,200 psi, each RexPak system is custom-configured from a core set of components: motor, pump, reservoir, and associated control valves. Although each RexPak solution is unique, units are built from readily available Rexroth hydraulics products and can be designed, configured and delivered in as little as six weeks.</p> <p><strong>HPU Offers the Right Fit</strong></p> <p>McDaniel worked with Bosch Rexroth to create the Pampanito&rsquo;s RexPak configuration. They used the RexPak Design Engine, an online configuration tool that captures key data needed to configure a RexPak hydraulic power unit. &ldquo;It was extremely helpful in guiding us to determine the right configuration to provide the hydraulic pressure required to operate the boat&rsquo;s equipment,&rdquo; McDaniel offered. &ldquo;It gave us all the right questions to ask &mdash; the weight of the bow planes and periscope, how much hydraulic fluid is accumulated from the forward engine room, distances from the HPU to where the equipment it will operate, and so forth.&rdquo;</p> <p>The RexPak for Pampanito is configured with a 71-cc Rexroth A10VSO axial-piston pump driven by a 15 hp motor. It provides flow of 30 gpm at a maximum working pressure of 750 psi. It includes an 80-gal reservoir, an inline-mounted relief valve, pressure gauge, and return and pressure filters. According to Butcher, this configuration provides sufficient hydraulic power to demonstrate how the different pieces of equipment on the boat work. For example, raises and lowers the 2,000-lb periscope at its original speed.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/P1030650.jpg" style="width: 595px; height: 572px;" title="The RexPak unit’s compact design made it well-suited to the tight confines in the Pampanito’s engine room. It was also easy to integrate into the WWII-era equipment on the ship." /></p> <p>Each piece of equipment operates independently, so the RexPak does not have to supply hydraulic power to all three systems simultaneously. And because the RexPak has been integrated into the boat&rsquo;s existing hydraulic lines, the boat&rsquo;s original controls on the bridge and in the engine and torpedo rooms operate as originally designed. McDaniel explained that the RexPak Design Engine system also helps Butcher and his fellow volunteers with detailed documentation. &ldquo;It provides an engineered drawing and a detailed datasheet of every component, so we could take the original sketch and make it into something formal in a very short period of time.&rdquo;</p> <p><strong>Donations Support Restoration</strong></p> <p>Butcher believed the RexPak unit would work well in the Pampanito, due to its modularity and ease of integration with the boat&rsquo;s existing hydraulics piping and controls &mdash; even though much of that equipment is decades old. The team installed the Rexroth equipment in such a way that modern technology operates the boat&rsquo;s original hydraulics plant to retain the museum ship&rsquo;s authenticity. &ldquo;We wanted to keep the functionality of the original system,&rdquo; he said. &ldquo;We had to install some special flanges and mounting brackets in some places, but in most cases you can&rsquo;t even tell that the system&rsquo;s there.&rdquo; Technicians were able to fabricate brackets to take advantage of existing bolts and holes to support the RexPak pump, motor controller, hydraulic fluid filters, and other system elements.</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/new-hpu-gives-wwii-sub-new-life-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>Using the RexPak unit also will help the Pampanito save energy because it takes much less power than the high-pressure air compressor did. Plus, the modular system can be easily broken down into its constituent parts, carried piece-by-piece other areas decks, then reassembled. According to Butcher, this helped simplify installation. The RexPak unit is also much easier to operate, which means many more volunteers, not just veterans, can be trained on it, so the periscope and other systems can be demonstrated more frequently to visitors eager to see the authentic WWII submarine.</p> <p>The valuable time and effort to get the right solution for the Pampanito&rsquo;s hydraulic restoration was all donated &mdash; as was the RexPak unit itself: Bosch Rexroth provided the system at cost to Hydraulic Controls Inc., who donated the complete system and their time. And, of course, Charlie Butcher and other Manson Construction Co. technicians have been donating time to configure brackets and other supporting materials to complete the project.</p> <p>The 30-year Navy man and former submariner appreciates how the RexPak HPU makes some of the more popular Pampanito sub equipment operational. &ldquo;Everyone wants to look out the periscope,&rdquo; said Butcher. &rdquo;From the young people to the World War II submarine vets and their wives, they all like to see things in operation, so we know the visitors will really appreciate it.&rdquo;</p> <p><em>Joseph Kane is Regional Sales Manager for Machinery Applications and Engineering, Bosch Rexroth Corp., Charlotte, N. C. For more information, visit <a href="http://www.boschrexroth.com/en/us/" target="_blank">boschrexroth-us.com</a>.</em></p> </div> <div class="og_rss_groups"></div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life#comments Hydraulic Pumps & Motors Thu, 09 Oct 2014 19:16:00 +0000 29061 at http://hydraulicspneumatics.com