Hydraulics & Pneumatics articles from April 2003

Hydraulics & Pneumatics archives from April 2003

Modular and compact valve block system.
April 1, 2003... Expand the modular HF03 directional valve block system in single-station increments up to 16 stations--providing up to 32 valve functions. Save space with the 16mm valve width, while obtaining a high flow at .7 Cv. Used with our bus modules,...

RexMover[TM]--rodless speed and durability.
April 1, 2003... As the most advanced rodless cylinder, the RexMover line employs a new generation shuttle cylinder design. It's ideal for applications requiring high precision over a long stroke length. Yet the installed length is just over half that of...

Pneumatic ISO valve uses ceramic plates.
April 1, 2003... The CERAM[TM] pneumatic four-way directional control valve uses sliding ceramic plates to provide basic flow and sealing functions. This means the valve won't "stick" like many spool valves. The ceramic plates, warranted for the life of the...

Plant tour dispels long-held myth. (Editor's Page).
April 1, 2003... Plant tours can be pretty intriguing. You almost always learn something, and it's interesting to see the many different ways tasks are performed to achieve the same end result. Plant tours are sort of like a live, personal version of The...

Readers' forum.
April 1, 2003... Taking steps toward being oil-free Way to go! You have aptly stated the decided opinion of most people I know, whether democrat or republican. I might also suggest that making larger size (by "large" I mean 50 to 100 amp-hour capacity)...

NFPA report monitors fluid power industry. (Industry News).
April 1, 2003... The National Fluid Power Association (NFPA) represents 240 manufacturers of hydraulic and pneumatic products and systems, as well as related suppliers. Some fluid power industry statistical information can be found on the NFPA web site at...

Industry shipments & order statistics.
April 1, 2003... Industry shipments & order statistics Orders and shipments (Cumulative year-to-date percent changes) Pneuatic Industrial Hydraulic Month Shipments Orders Shipments Orders Sept. 02...

Attica is on the move. (Industry News).
April 1, 2003... Attica Hydraulic Exchange Corp., Gratiot, Mich., recently moved to a new location from Chesterfield, Mich. The new building has 170,000 sq-ft, approximately three times the size of the old one. The company's future plans include expansion into...

Freudenberg-NOK. (People).
April 1, 2003... Freudenberg-NOK, Plymouth, Mich., has named Dr. Mohsen Sohi as chief executive officer for Freudenberg-NOK G.P., the Americas unit of the global Freudenberg and NOK group companies. Sohi, who has more than 16 years of engineering and management...

50 years ago. (Industry News).
April 1, 2003... From the August 1953 issue of Applied Hydraulics (the original title of H&P): Thermal barrier challenges component designers Hydraulic applications in the aircraft industry are faced with a very serious high temperature problem. In...

Instructors learn of "boring" subject. (Ideas & Applications).
April 1, 2003... Most tunneling projects receive little fanfare beyond local coverage. And service tunnels for sewer systems and other utilities usually receive no press coverage at all and are taken for granted by the millions of people reaping the benefits of...

Video teaches electrohydraulic servo systems. (Ideas & Applications).
April 1, 2003... Having a hard time grasping the concepts of electrohydraulic servo control? You're not alone. This complex subject requires a knowledge of control theory, design concepts, and hydraulic technology--a combination most people lack. To help...

Hydraulic hose and fluid compatibility.
April 1, 2003... One of the quickest ways to shut down hydraulically operated equipment is to use the wrong hose and fluid combination. Most hydraulic applications use petroleum-based fluids -- and most high-pressure hoses are made with Neoprene or Nitrile...

Adapters extend pump life. (Ideas & Applications).
April 1, 2003... Repaving asphalt roadways requires stripping off the old layers of asphalt before the new surface can be laid. A machine for accomplishing this is the RX 50B cold planer from Roadtec, Chattanooga, Tenn., a leading manufacturer of pavement...

Sensor is ideal for short strokes. (Ideas & Applications).
April 1, 2003... A new senosr for feedback of linear position relies on magneto-inductive sensing technology, which makes it compact and ideal for short -stroke applications. Balluff's BIL magneto-inductive linear position sensor provides highly accurate,...

Correcting disturbances with integral control. (Motion Control).
April 1, 2003... Continuing the discussion of applying integral control to electrohydraulic servo systems, we now shall focus on reducing the effects of disturbances that act upon control systems. The effects of these disturbances can be measured. Therefore,...

Pneumatic valves learn to network: the use of serial interface or industrial networks in place of traditional wiring is becoming the norm rather than the exception in most automated plants today. (Pneumatic Systems).
April 1, 2003... There seems to be a lot of mystery surrounding the use of serial interface or field bus technology for pneumatic solenoid valve actuation. It's clear, however, that individually hard-wired valves are slowly becoming a thing of the past--so...

Pneumatics perfects paper palletizer. (Pneumatic Systems).
April 1, 2003... When paper manufacturer Australian Paper needed to speed up its automated boxed paper palletizing system, Robotic Automation stepped in to help. Using a pneumatic valve system and rodless cylinders, they developed a production line that is now...

Festo launches new Web site. (Pneumatic Systems).
April 1, 2003... Festo USA Hatippauge N.Y., recently relaunched its Web site at www.festo-usa.com. The new site allows easy navigation for finding industrial automation services products, and sales and technical support. Some of the sites features include: ...

Bosch Rexroth Corp. (People).
April 1, 2003... Bosch Rexroth Corp., Hoffman Estates, Ill., announced that Bob Rickert has stepped down as president and CEO, and he was replaced by Wolfgang Dangel, formerly an executive vice president and CFO. Rickert has assumed the role of advisor to...

Rodless pneumatic cylinder. (Products & Lit).
April 1, 2003... SPECS Maximum speed: 16 ft/sec Bore sizes: 16 to 80 mm FEATURES * Oval-shaped piston provides greater resistance to side load * Variety of air connection options (side at both ends, rear of end covers, or on one end...

Compressor, vacuum pump lubricants. (Products & Lit).
April 1, 2003... SPECS Pour points: -80[degrees] F Viscosity grades: 32 to 100 ISO Service life: Up to 10,000 hours FEATURES * Ultra high-purity synthetic and mineral oil formulations * Lasts up to 10 times longer than alternatives...

Pneumatic motion control. (Products & Lit).
April 1, 2003... Colorful brochure introduces multitude of pneumatic components: NFPA interchangeable cylinders, rodless cylinders, slides, grippers. Describes corporate capabilities, industries served. Provides product photos and features in convenient table...

Stainless steel regulators and filter regulators. (Products & Lit).
April 1, 2003... SPECS Air consumption rate: 4 SCFH, 0.1 [m.sup.3]/hr Maximum output pressure: 150 psig Maximum inlet pressure: 290 psig FEATURES * Compatible with sour gas * Adaptable to off-shore environments * Minimal air...

HST contributes to award-winning design: Deere's 700H tractor capturing the prestigious Red Dot Award, leaves its competitors green with envy. (Construction Equipment).
April 1, 2003... Jim Manor, engineering manager, crawlers, of John Deere's Construction and Forestry (C&F) Division, explains that the hydraulic system on the 700H tractor is really two separate systems. "The transmission is a dual-path hydrostatic (HST)...

No threads? No problem: doing away with threads not only reduces a potential leak path, but makes assembly faster and easier--which adds up to lower production and maintenance costs. (Construction Equipment).
April 1, 2003... In January 2001, Rian Meyeres, engineering supervisor for John Deere, Moline, Ill., was the leader of a design team that decided to switch the end fittings on the hydraulic brake and power steering lines of their G-Series backhoe loaders over...

Focus on the future: the eighth scandinavian international conference on fluid power promises a glimpse at tomorrow's breakthroughs in water hydraulics, motion control, mobile equipment, and more. (Conference Preview).
April 1, 2003... Hannover, Germany, gets most of the attention in the fluid power world this spring, but come May, another European event wilt move into the proverbial spotlight. SICEP '03, the Eighth Scandinavian International Conference on Fluid Power, will...

CANopen fieldbus comes to Proportional hydraulics: proportional valves with CANopen interface mark a new era of valve design. (Electrohydraulics).
April 1, 2003... Walter Lenz Although fieldbus systems were established some time ago for electrical drives, hydraulics has been slow to follow suit. In particular, industrial proportional valves 2 with fieldbus interfaces have not been widely available....

Electrohydraulic brake valve. (New Products).
April 1, 2003... SPECS Maximum output pressure: 3000 psi Controller Area Network: 16 DVC expansion modules FEATURES * Provide hydraulic power for normal and emergency power-off braking systems * Valve driver accepts one or two, low-power...

Cylinder with removable rod guide. (New Products).
April 1, 2003... SPECS Maximum pressure: 3000 psi Piston rod diameters: 5/8 to 5 1/2 in. Bore diameter: 1 to 8 in. FEATURES * Removable ductile iron rod guide reduces wear and increases service life * Reduced guide clearance provides...

Explosion-proof electrohydraulics. (New Products).
April 1, 2003... SPECS Maximum flow: 5000 1/min Maximum pressure: 350 bar FEATURES * Solenoids tested and certified to new ATEX standards * Valves and cartridges conform to international standards * Available in both on/off and...

Spiral hose couplings. (New Products).
April 1, 2003... SPECS Maximum working pressure: 6000 psi FEATURES * Designed for non-skive SAE 100 R12 applications * Have corrosion-resistant, zinc-chromate finish * Precision machined ferrule ensures leak-free operation *...

Microprocessor-based module. (New Products).
April 1, 2003... SPECS Operating temperature range: -40[degrees] to 85[degrees]C FEATURES * 8 PWM or on/off sourcing, 15A outputs with current feedback over 3A * NEMA 4-rated enclosures for demanding off-road applications * Four-wire...

Servo-proportional valves. (New Products).
April 1, 2003... SPECS Maximum operating pressure: 5000 psi Maximum flow: 10 gpm Maximum response time: 12 ms FEATURES * Linear force motor direct drives a zero overlap spool * NFPA standard D03 footprint provide for easy integration...

Rotational transducer. (New Products).
April 1, 2003... FEATURES * Combines rotational position feedback of two-wire, 4-20mA current loop signal with linearity and resolution of plastic-hybrid potentiometer * Certified by GSA and CENELEC for use in hazardous areas * Available in full...

Flange adapters. (New Products).
April 1, 2003... SPECS Size range: 1/2 to 2 in. Maximum pressures: 12,000 psi FEATURES * Requires two bolts to provide leak-resistant flange connection * Mate with either of the two diagonal tapped mounting holes of the same nominal size...

Leak-free connectors. (New Products).
April 1, 2003... SPECS Size range: 1/8 to 2 in. FEATURES * Crafted of steel, brass, stainless, aluminum or monel * Bar stock construction permits full wrench pad for easier installation * Superior tensile strength and hardness allow for...

Hydraulic vane pumps. (New Products).
April 1, 2003... SPECS Maximum pressure: 4650 psi Volumetric efficiency: >94% Mechanical efficiency: >94% Speed range: 600 to 3600 rpm FEATURES * Designed for high/low circuit operation * Combination of different cartridges in...

Servo and proportional valves. (New Products).
April 1, 2003... SPECS Size range: NG 6 to NG 25 Nominal flow range: 2 to 550 l/mm FEATURES * ATEX (Europe) and FM (USA) certified servo and servo-proportional valves * Explosion proof and intrinsically safe * ATEX, FM and CSA...

Stainless steel bar. (New Products).
April 1, 2003... Stainless steel bar, useful for a variety of applications, is available in 300 series, 400 series, and precipitation hardening grades. Marmon Keystone Corp. (800) 544-1748 www.marmonkeystone.com Circle 262

Thermoplastic hose. (New Products).
April 1, 2003... SPECS Operating temperature range: -65[degrees] to 200[degrees]F Maximum operating pressure: 3000 psi FEATURES Synflex Spectra hydraulic hose can withstand broader temperature range than other thermoplastic models. Lightweight...

Reciprocating pump. (New Products).
April 1, 2003... SPECS Maximum flow: 1.5 gpm Maximum pressure: 3000 psi FEATURES P923 Series reciprocating pumps are manifold mounted instead of mounted with screwed line connections. The integration of the pump with valves and other modules...

Protective hose wrap. (New Products).
April 1, 2003... SPECS Sizes: 1/8 to 1 1/2-in. OD FEATURES Heli-Tube spirally cut polyethylene wrap organizes and protects single or multiple-hose bundles up to 10 in. in diameter. Wraps are flexible and abrasion resistant, protecting hydraulic...

Cylinder position sensor. (New Products).
April 1, 2003... SPECS Housing size: 7 and 10 mm Static pressure rating: 4300 (7 mm) and 5000 psi (10 mm) Measuring range: 50 to 1000 mm Accuracy: 0.005% * Magnetostrictive position sensor for use inside mobile hydrauiic cylinder ...

Gear pump for off-highway. (New Products).
April 1, 2003... SPECS Temperature capability: -20[degrees] to 100[degrees]C Maximum working pressure: 3500 psi Peak pressure: 4200 psi FEATURES * High pressure, aluminum body, bearing block design SAE A * A356 T6 gravity cast front...

Synthetic hydraulic fluid. (New Products).
April 1, 2003... SPECS Flash point: Up to 529[degrees] F Pour point: As low as -17[degrees] F FEATURES Enersyn SF-E synthetic fluid is formulated with high-quality synthetic base stocks for better performance under severe temperatures and...