TechArchive

Original article date: January 1999 A redesigned slit-type rodless cylinder is thin and short enough to compete with magnet types down to much smaller stroke lengths. DEREK ESSAM of Koganei UK explains Generally in the case of conventional cylinders with a piston rod the operating space consists of the stroke space and cylinder volume. But [...]

Original article date: April 1999 A breakthrough in moving coil technology has led to the introduction of a new series of electronic actuators from SMC. Early pneumatic systems such as those used in the 19th century to operate points and signals remotely in underground railway networks were designed to produce a discrete two-position actuation in [...]

Original article date: June 2000 InPHorm is an odd name – and we still don’t know how to pronounce it – but it’s a boon for selecting hydraulic cylinders and other components too! Traditionally, the accurate specification of a hydraulic cylinder has involved searching through tables, locating dimensions, and identifying cushion presses and buckling forces. [...]

Original article date: June 1998 Modern seal scraper and guide elements are today developed as high performance machine elements. With proper choice and installation they should manage trouble-free operation with a long service life expectancy. Oswald Seals’ so-called Really Useful Guide to Hydraulic Sealing contains four sections designed to help select the right type of [...]

Original article date: June 2000 Noise in hydraulic systems has a nasty habit of being worse than expected during system installation. What’s on offer to combat the problem? DAVID WRIGHT investigates Hydraulic sound isn’t pleasant, and is usually classified as noise. In excessive amounts, it can damage the health of workers in the area around [...]

Original article date: October 1997 The design principles of a new range of pneumatic components achieve fast pay back and productivity goals says Carl McGowan Sales Engineer with Parker Pneumatic Increased productivity and fast pay-back times are the chief goals of design engineers when selecting and specifying automation equipment. In order to achieve these goals [...]

Original article date: February 2000 With its acquisition of Hydrostatic Transmissions, PSS is now offering high torque, low speed radial piston motors, integrated into its own range Now being supplied by Steering and Hydraulics Division of North Walsham, Norfolk based PSS, is the HTL range of rotating shaft hydraulic motors. The principle of operation of [...]

Original article date: October 1997 An important step in processing compressed air is to introduce a suitable amount of lubricant usually oil to enable the operating equipment to perform to its requirements efficiently without excessive resistance or wear. Excessive resistance to motion will result in extra power consumption and excessive wear will result in shortened [...]

Original article date: April 1995 Very rapid acceleration can be obtained from pneumatic impact cylinders. IMI NORGREN explains how they can not only be used in place of conventional press machinery but can even improve on the results obtained. For a fraction of the capital outlay the impact cylinder provides in itself a power unit [...]

Original article date: November 1999 Alan Quinn’s three-yearly defection to PRW Magazine to help judge its product design awards yielded this device from Ultronics – a software driven programmable electronic hydraulic proportional valve. Quite a mouthful, but a clear winner nonetheless. It’s often predicted that on tomorrow’s truck there will be a joystick with which [...]