Hydraulics & Pneumatics articles from August 2005

Hydraulics & Pneumatics archives from August 2005

Trade shows turn educational.(Editor's Page)
August 1, 2005... People have been predicting the demise of the trade show for quite a few years now. My earliest recollection of this was the purported coming boom of video conferencing. The thought was, why do we ever need to go see someone in person if we...

I'm warning you ...(Readers' Forum)
August 1, 2005... I read with interest the column, "The Sky is Falling! The Need for Reasonable Warnings" in the June 2005 issue of Hydraulics & Pneumatics. As a professional in the construction equipment industry, I also am concerned with the need for safety...

Rate your components.(Readers' Forum)
August 1, 2005... I truly appreciate your contributions as editor of H & P. It is fast becoming my favorite technical publication. I especially enjoyed your terse editorial on monitoring hydraulic machine life (which drew upon diesel engines for insight). ...

Truly a thrill.(Readers' Forum)
August 1, 2005... I just read your Editor's Page on Cedar Point's Top Thrill Dragster. I think that coaster is a work of art. I was there in June 2003, just to go on Top Thrill Dragster. I am kind of a roller coaster junkie. Once I arrived and saw its...

Patrick S. Parker, industry leader, passes away.(Industry News)
August 1, 2005... Patrick Streeter Parker, Chairman Emeritus for Parker Hannifin Corp., Cleveland, died peacefully from cancer on Wednesday, July 6. He was 75. Under his direction, Parker Hannifin, which was founded by his father, Arthur, in 1918, grew...

Schroeder Industries names new leader.(Industry News)
August 1, 2005... Schroeder Industries LLC., Leetsdale, Pa., named Gus Schroeder Jr. executive vice president/general manager. His appointment follows the voluntary departure of his predecessor, Michael Lamers. Schroeder joined the company in 1993 and has...

Basic machine vibrations course.(Industry News)
August 1, 2005... The Vibration Institute will hold two, four-day courses on basic machine vibrations. The first date, September 13-16, will be in Peabody, Mass., and the second date will be in Willow-brook, Ill., on November 1-4. The fee is $975. The...

Hydraulic fluid efficiencies presentation.(Industry News)
August 1, 2005... The joint meeting of the NFPA/T2.13 (fluids) and NFPA/T3.19 (sealing devices) committees, scheduled for 12:30 to 4:30 pm on September 20 in Milwaukee, will feature a special presentation by Steve Herzog, OEM Liaison Manager, and Doug Placek,...

Fall conference and NFPA/FPDA joint conference.(Industry News)
August 1, 2005... NFPA and FPDA have together planned a new take on the long held tradition of Joint Fall Conferences. For 2005, each association will present its own conference programming, with Saturday, October 22 planned as a special joint programming day....

Fluid Power Expo on a roll.(Industry News)
August 1, 2005... The first annual Fluid Power Expo, to be held Tuesday and Wednesday, November 8 and 9 at the Crowne Plaza Hotel in Cleveland, promises to be a unique learning experience. The Expo will feature a variety of exhibitor, and includes...

A classic reinvented.(Industry News)
August 1, 2005... Hydraulic Control Systems rewritten after 38 years Building on the success of Herbert Merritt's original text, author Noah D. Manring has updated Hydraulic Control Systems. The 446-page book features eight chapters. [ILLUSTRATION...

Reduce breakaway torque ... on heavy machinery.(50 years ago ...)
August 1, 2005... From the August 1955 issue of Applied Hydraulics (the original title of H & P). Practically zero breakaway torque has been achieved on two 80,000 KW hydro-electric generators built by the Allis-Chalmers Mfg. Co., says H.H. Roth and W.B....

Pump cuts friction by eliminating side loads.(Ideas & Applications)
August 1, 2005... The application of a recent invention, the Sanderson Rocker-Arm Mechanism (SRAM), reportedly holds promise to improve efficiency of hydraulic pumps and motors, engines, compressors, and other positive displacement pumping devices. The mechanism...

Servovalves control world's largest paper machine.(Ideas & Applications)
August 1, 2005... The world's largest paper machine, developed by pulp and paper machinery builder Metso Paper, Inc., Jyvaskyla, Finland, has a wire width of 11.3 m and runs at 2000 m/min (75 mph). It is scheduled for startup at the end of this year. How do...

Orientation sensor produces wireless signal.(Ideas & Applications)
August 1, 2005... Equipment designers have quite a range of sensor technologies to choose from--from simple pressure and limit switches to those used in global positioning systems. Perhaps the newest type is the Inertia-Link wireless inertial sensor, from...

Dual-mode pressure control.(Motion Control)
August 1, 2005... In certain press applications, the control system is designed to provide position control during rapid traverse toward die closure. As the load is engaged and pressing begins, the pressure builds up, but the pressing quality is many times...

Industry standards: a way to avoid getting hosed at trial.(Letter of the Law)
August 1, 2005... The vast majority of cases dealing with hose failure involve seriously debilitating injuries, including extensive or deadly burns when hydraulic fluid from a ruptured hose is sprayed or ignited. Frequently, the defendant in those cases has been...

Helping out with the daily grind: mobile equipment can subject hydraulics to some very difficult conditions. Throw in a few tons of garbage, and the challenges become truly enormous.(MOBILE EQUIPMENT)
August 1, 2005... In recent years, increasing governmental regulations, rising land prices, and the public's "not in my backyard" attitude has added to the strain on the landfill industry. Recycling and diversion programs have had some success in reducing the...

Valves give the right directions: one of the most fundamental components of any fluid power system is the directional-control valve. Here's a summary of the different types, configurations, and uses.(SYSTEM DESIGN)
August 1, 2005... Bang-bang, soft shift, check, pilot-operated, directional control--there seem to be as many types of valves as there are applications. Sophisticated or simple, they make fluid power into a controlled working force. Bang-bang is the term often...

Pneumatics cuts lumber costs: rapid operation and versatile cushioning make pneumatics a natural for high-production lumber processing.(AUTOMATE WITH AIR)(Cover Story)
August 1, 2005... Efficient, reliable equipment operation is a must within the harsh environments of wood processing, where components are deluged by dust, taxed by temperature fluctuations, and vexed by vibration and shock. Now more than ever, original...

Enclosed pneumatic clamp.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... The 8031 pneumatic clamp is fully-enclosed for harsh environments. Cylinder is sensor-ready to detect open and closed positions of the clamp, which can be hard-piped, eliminating the need for hoses. Fits easily into confined areas, with load...

Magnetic cylinder sensors.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... C-slot pneumatic cylinder sensors with Giant Magnetoresistive technology offer repeatability, fast response times, and immunity from long-term effects of magnetic fields. Top-loading mounting eliminates need to remove cylinder end caps. Bodies...

Pneumatic grippers.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... GRR Guardian grippers provide high grip force in long jaw travels of 150, 200, 250, and 350 mm. Withstand high impact and shock loads. Double acting for internal and external gripping. Dual air-passage piston rod design allows rapid bore...

Compressed air analysis system.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... Air Demand Analysis program is a complete compressed air system that uses state-of-art data loggers and precision sensors to create detailed air usage profiles. Monitors and charts air flow, power consumption, system pressures, and air quality...

Micro needle valve.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... Micro needle valve with M3 threaded inlet and hose barb outlet is small, leak-tight, durable, and light weight. Weighs 2.26 g and is 10.4 mm high. Provides precise flow adjustment for stability during temperature fluctuations. Body swivels...

Rodless cylinders.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... GSU (guided slide unit) pneumatic linear drive can be used in gantries as an X-axis or as a workpiece pallet in material supply. Speeds to 1.5 m/sec enable short cycle times. Ensures high rigidity and precise slide guiding. Available in 16 and...

Repairable cylinders.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... EN series NFPA interchangeable cylinders use extra long graphite-filled cast iron rod bushings to increase stability. Feature bore sizes of 1 1/2 to 6 in., rod diameters of 5/8 to 1 3/4 in., strokes to 48 in., and maximum pressure of 250 psig....

Linear sensor.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... Absolute position feedback technology eliminates need for homing routines in BC3, a fully-integrated linear actuator sensor. Provides analog feedback to controller or PLC to determine a position. Stroke lengths of 2 to 156 in. Non-contact,...

Pilot operated valves.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... Complete catalog provides information on pilot-operated, 3- and 5-port valves. Two series featured, including 4GA, a metal-based valve, and 4GB, a block manifold. Details include safety precautions, engineered drawings, specifications,...

Piston pumps.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... GH series of articulating compressors and vacuum pumps deliver air flow to 5.2 cfm, pressure to 175 psi, and vacuum to 27.5 in. Hg. Features permanently lubricated and sealed bearings, cast iron cylinders, and high-strength stainless steel....

Valve islands.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... VM15 valve island series features flow to size rate of 1.0 Cv in 15 mm wide body. Engineered polymer construction offers strength and stability for harsh environments. Available with DIN rail, through hole, and sub-base mounting options....

Rodless cylinders.(PNEUMATIC PRODUCTS)(Buyers Guide)
August 1, 2005... Series MY2 and MY3 rodless cylinders uses low-profile designs for space-saving of 30% or more compared to conventional designs and exceed 3000 km travel life. Stroke-adjusting, double-acting MY2 requires no lubrication for high-precision linear...

High-density spiral wrap.(Useful Products/Spotlight on Hose Protection)(Buyers Guide)
August 1, 2005... Heavy-wall, high-density polyethylene spiral hose wrap offers maximum protection against abrasion and crushing and is impervious to most oils and solvents. Available in 1/2 to 6 in. sizes. Features high resistance to weathering with a...

Hose-bend restrictor.(Useful Products/Spotlight on Hose Protection)(Buyers Guide)
August 1, 2005... Hose-bend restrictor is tapered vinyl sleeve that reduces bending stress near hose-coupling junction to protect from damage. Upper lip attaches firmly to coupling; sleeve stays in place and eliminates need for adhesives and clamps. Available in...

Heat, fire protection.(Useful Products/Spotlight on Hose Protection)(Buyers Guide)
August 1, 2005... Fyrejacket and Fyretape protect hose, tubing, etc. from exposure to 500[degrees]F as well as from molten splash and welding sparks. Resistant to hydraulic fluids and lubricating oil. Aerospace-grade Fyrejacket withstands short-term flame...

Cable carriers.(Useful Products/Spotlight on Hose Protection)(Buyers Guide)
August 1, 2005... System E3 Energy Chain cable carriers offer smooth, quiet operation and low vibration at high speeds. Design allows closing on the outer radius for fast, easy cable access and installation. [ILLUSTRATION OMITTED] Igus Inc., (800)...

Hose and cable wrap, covering.(Useful Products/Spotlight on Hose Protection)(Buyers Guide)
August 1, 2005... ProWrap hose and cable wrap bundles loose hose and cables into line. Available in sizes to fit 1/4 to 11 in. bundles. Tight grip prevents sliding and tangling. Bundled hoses may exit at any point. Equipment stays operational during...

PTFE spiral wrap.(Useful Products/Spotlight on Hose Protection)(Buyers Guide)
August 1, 2005... Heli-Tube PTFE spiral wrap can be installed over braided hydraulic hose for added protection where abrasion could cause leakage. Chemically inert and non-flammable, it is available in sizes from 1/2 to 10 in. OD. Operating temperature to...

Directional control valves.(Useful Products)(Buyers Guide)
August 1, 2005... PVG 100 post-compensated directional control valves offer flexible load-sensing and pressures to 350 bar, and 180 lpm for energy-limited hydraulic systems. High performance valve delivers equitable flow sharing for precise control of multiple...

Torque arm drive system.(Useful Products)(Buyers Guide)
August 1, 2005... Torque arm drive system is preassembled turnkey direct drive package. Motor's case is main reservoir. Features fewer frame components, hoses, or lines. Nine sizes with speeds of 0 to 10 rpm, maximum torque of 34,100 to 581,000 lb-ft, and...

Radial piston motor.(Useful Products)(Buyers Guide)
August 1, 2005... Low-speed, high-torque radial piston motor offers low speed and high starting torque in compact design. Seven models offer torque from 555 to 28,280 N-m, with speeds ranging from 80 to 500 rpm. Maximum power of 15 to 130 kW. Peak pressure from...

Rotary actuator attachment.(Useful Products)(Buyers Guide)
August 1, 2005... PowerTilt construction equipment attachments increase productivity, profitability, and versatility by tilting the attachment only rather than entire machine. For use with wide and narrow buckets, brushcutters, hydraulic hammers, ripper tooth,...

Cylinder tubing.(Useful Products)(Buyers Guide)
August 1, 2005... DOM (drawn over mandrel) tubing has high wall uniformity, concentricity and surface finish. Provides close ID tolerances and smooth surface finishes. OD from 0.750 to 12 in. and wall thickness from 0.065 to 0.650 in. TuffDOM line of cold-drawn,...

Industrial shock absorber.(Useful Products)(Buyers Guide)
August 1, 2005... SC 650-HC high-cycle industrial shock absorber is ideal for high-speed applications. Offers short stroke and quick rod-ready time. Five models handle 50 to 14,000 lb. With 1200 N-m per cycle, 4.94 to 8.3 N return force, and 0.2 sec return time....

Programmable proportional valve.(Useful Products)(Buyers Guide)
August 1, 2005... PowrFlow VED03M control valves with on-board electronics can be programmed from a laptop computer with RS232 connection or flash card-equipped PDA. Available in five flow metering configurations, three spool centered conditions, and six flow...

Differential pressure transducer.(Useful Products)(Buyers Guide)
August 1, 2005... Model 235 wet-to-wet, high-line differential pressure transducer measures pressure of liquids and gases to 2500 psig. Accurate to [+ or -] 0.18% full-scale output, with total error band of [+ or -] 0.5% full scale in temperatures of...

Digital hydraulic multimeter.(Useful Products)(Buyers Guide)
August 1, 2005... DHM series of digital hydraulic multimeters provides digital readouts of pressure, peak pressure, volumetric efficiency, hydraulic horsepower, flow rates, and fluid temperature. Two models with flow of 100 or 200 gpm, peak pressure to 9000 psi,...

Hydraulic sealing.(Useful Products)(Buyers Guide)
August 1, 2005... High-performance polyurethane material in 92 AU 21100 seals is used for high-frequency, cold temperature (to -50[degrees] C) applications. Protects against water degradation, and offers no starting leakage, high temperature range, low friction,...

Environmentally sealed joystick.(Useful Products)(Buyers Guide)
August 1, 2005... AJ4 joystick has a life cycle of more than 6 million actuations. Combines flexibility and high mechanical strength for standard and custom grips. Environmentally sealed--IP67 above gate--with potted electronics. Meets ISO 11452-2/5, IOS 7637-0,...

Getting control of contamination.(MRO)
August 1, 2005... Technologies change, products change, and even practices change over time. Isn't it ironic, with all we know about contamination and the effect it has on hydraulic systems, there hasn't been any significant changes in one of the key areas of...

Mid-State opens Port-to-Port sales facility.(MRO NEWS & PRODUCTS)
August 1, 2005... Mid-State Sales Inc., Columbus, opened its third Port-to-Port store in North America in Youngstown, Ohio, featuring Eaton Weatherhead-brand hose and fittings. Mid-State purchased the Youngstown facility when it was Youngstown Rubber, and...

Timken introduces paper industry bearing training.(MRO NEWS & PRODUCTS)
August 1, 2005... The Timken Co., Canton, Ohio, will launch a Paper Industry Bearing Training class in September at its Tyger River facility in Union, S.C. A combined schedule of in-class and hands-on training covers every phase of bearing performance in the...

New edition of maintenance management book by ISA.(MRO NEWS & PRODUCTS)
August 1, 2005... ISA, Research Triangle Park, N.C., recently released Maintainability and Maintenance Management, 4th Edition by Joseph D. Patton, Jr. The book emphasizes the concepts of preventive, predictive, and reliability-based total maintenance, as well...

Meeting Lockout Standards.(MRO NEWS & PRODUCTS)(Buyers Guide)
August 1, 2005... Safe-T-Bleed meets OSHA's Lockout Standard 1320 by bringing hydraulic energy to a zero-mechanical state before performing work. Closed-loop AirBleed system safely and effectively removes air from cylinders, air bleed pumps, and load sense lines...

Pipe cutting system.(MRO NEWS & PRODUCTS)(Buyers Guide)
August 1, 2005... Pipe Branching System 8 cuts tube and pipe to 8 in. in less than one minute. System (including pipe roller stands) cuts steel, stainless steel, copper, soil pipe, and plastics cleanly. Cuts are square enough to allow orbital welding without...

Remanufactured components.(MRO NEWS & PRODUCTS)(Buyers Guide)
August 1, 2005... Brochure offers overview of company and its inventory of new and remanufactured hydrostatic pumps and motors, including complete list of manufacturers whose products it services. Product lines served include: Rexroth, Brueninghaus, Hydromatik,...

Electronic crimping machine controls.(MRO NEWS & PRODUCTS)(Buyers Guide)
August 1, 2005... Electronic control for OP Tubomatic crimping machines enables setting of all swaging parameters in millimeters or inches. Allows automatic, semi-automatic, or manual control of machine. Data stored and recalled through 200 alphanumeric codes....

Portable totes, filter carts.(MRO NEWS & PRODUCTS)(Buyers Guide)
August 1, 2005... Line of portable totes dispenses filtered oils and can be used as offline filter cart. Combination of portability and dual-stage filtration, with dual housings offers quick filter changeouts, and water and dirt removal to 3 [mu]. Air filtered...

Pneumatic tool caps.(MRO NEWS & PRODUCTS)(Buyers Guide)
August 1, 2005... Intacap protects pneumatic tools and enhances performance and longevity. Seals off intake air to prevent airborne dirt, grime, and moisture from entering tools. Rubber compound is environmentally safe. Currently offered in 1/4 in. sizes; 3/8...