Alan Hitchcox

Alan
L.
Hitchcox
Editor,
Penton Media Inc.

Alan became a technical editor in 1981 and joined Hydraulics & Pneumatics in 1987. After serving in the US Army as a wheeled vehicle mechanic, he graduated with a BS in engineering technology from Franklin University, Columbus, Ohio, while working as an industiral service coordinator and project manager at an industrial distributor. He has taken technical courses in fluid power and electronic and digital control at the Milwaukee School of Engineering and the University of Wisconsin - Milwaukee and has served on several industry committees.

Articles
Fire-resistant hydraulic fluid

Cosmolubric B-230 vegetable oil-based hydraulic fluid has additives to enhance corrosion resistance, metal passivation, and oxidative inhibition. It is a Factory Mutual Approved fire resistant hydraulic fluid that protects personnel and property from accidental fire and may lower insurance premiums.

Hydraulic fluid de-aerator
Quicktron de-aerator uses cyclone movement principle to remove air bubbles from hydraulic fluid, thereby boosting filter performance, extending fluid life, and, ultimately, improving machine reliability.
Stainless steel air cylinders

Stainless steel air cylinders now come in 9⁄16-in. bore. With strokes to 4 in. Available in stud or universal mount, double, single, or reverse acting, and with rotating or non-rotating rod. As with other sizes in line, they have polished bore, rolled construction with machined aluminum heads, sintered bronze bushing, ground, polished and roller burnished 303 stainless rod, and Buna-N U-cup piston and rod seals.

Clippard Instrument Laboratory,
(877) 245-6247, www.clippard.com

Position sensor tolerates pressure environments

Balluff Inc., Florence, Ky., introduced what it says is the first high-pressure inductive analog position sensor. Rated for pressure to 500 bar (7250 psi), the sensor is intended for hydraulic valve control and hydraulic cylinder cushioning applications, especially in mobile hydraulic equipment.

Aerial work platform has all-hydraulic control

Forget about expensive fiber optics and temperamental digital controls. Elliott Equipment Co., Omaha, recently developed a full-hydraulic upper platform control package for its HiReach aerial work platform product line. Hydraulic valves and actuators are typically used for moving and positioning aerial booms and platforms, but electronic controls usually command solenoid-operated electrohydraulic valves.

Position transducers report in real time

Output lag times are inherent in some position transducers because signal-processing take time. In high-speed applications, this can mean that the controls only know where components have been recently, not where they are right now. If absolute linear-positioning data is important to an application, the TDP family of transducers — from Transducers Direct — incorporates a hybrid technology that offers a reliable approach to position sensing data.

Helical gears make for quieter work areas

Reducing noise in the workplace has become a necessity for many companies, and both industrial and mobile hydraulic systems have been identified as significant contributors. One of the main generators of noise in a hydraulic system is the pump and the pulsating flow it produces. A new pump that uses helical gearing creates a single point of contact between teeth, thus reducing noise and fluid pulsation.

Air provides pumping power

Mining equipment makes wide use of hydraulics technology because it packs so much power into such little space. Pneumatics, of course, also packs a lot of punch into a small space. However because most pneumatic systems operate at much lower pressure, hydraulics usually gets the nod to provide the power needs for digging, pushing, lifting, and crushing.

Air starter is small in size, big on power

SS100 Series air starters from Ingersoll Rand can start engines up to 10 liter displacement. Compared to electric starters, the SS100 Series is a fraction of the size. This feature is especially important in meeting Tier IV requirements, which make engine compartment space more precious than ever.

HIC packs lots of power into small package

Hydraulic integrated circuits (HICs) consist of manifolds and cartridge valves to control hydraulic flow, direction, and pressure in a compact, light weight package that places multiple functions in a convenient centralized location. In addition to compact cartridge valves, the manifold may also house subplate mounted discrete and proportional valves and smaller manifolds containing branch circuits.

IFPE 2014 issues call for papers

The IFPE Education Committee issued a call for papers for the next IFPE Technical Conference, which will be part of IFPE 2014. Scheduled for March 4 to 8, 2014 at the Las Vegas Convention Center. IFPE 2014 is an international exposition and technical conference dedicated to integrating fluid power with other technologies for power transmission and motion control applications. It will be held in conjunction with ConExpo/ConAgg, which is conducted by The Association of Equipment Manufacturers (AEM).

Self-printed, self-adhesive hose and cable labels
CILS-91000TK self-laminating labels provide a permanent, high-strength bond to all industrial pipes, flexible hoses, and conduits for long-term identification. Featuring a clear, wrap-around protective tail, CILS-91000TK labels permanently seal and safeguard all printed variable data for complete protection against hydraulic oils, chemicals, solvents, abrasion and temperatures from –80° to 388°C.
Technology: an accessory to murder
Alan Hitchcox
editor
Desiccant breather incorporates check valves for longer life

As designers have learned more about the detriments of hydraulic fluid contamination, they’ve been incorporating techniques to keep dirt and moisture out of hydraulic systems. Reservoirs have been one of the most common points of entry for dirt and moisture. Fortunately, filter breathers that incorporate moisture-adsorbing desiccant provide a simple and inexpensive way to keep dirt and water out of reservoirs.

An easier fit for clevis pins
It's a given that when you need to transmit tremendous forces for excavators and other types of heavy equipment, hydraulics is the only way to go. And although transmitting cylinder force to the machine's structure may not be a "hydraulics" problem a practical solution must be found to avoid premature bearing failure and other problems.
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