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Parker Hannifin has launched the ETH range of electro thrust cylinders for applications such as packaging machinery, industrial automation, materials handling, testing and material forming.

The redesigned ETH range offers high power from a small cylinder size.

It provides a high-thrust, high-speed alternative to pneumatic and hydraulic drives.

The ETH delivers its high power density for a given frame size thanks to its larger-diameter spindle; this is significantly larger than conventional designs in relation to the overall unit size, resulting in high axial forces, according to the company.

For precise motion, positioning, setting and actuating, the ETH offers a thrust force up to 25,100N, in strokes up to 1,600mm (as well as short stroke versions), speeds up to 1.7m/s and repeatability to +/-0.03mm.

The design is based around a precision ballscrew that ensures low frictional resistance for smooth motion over the entire speed range, a longer life and increased efficiency of up to 90 per cent.

A new feature is an integrated anti-rotation device in the form of a maintenance-free polymer bushing, which offers robust guidance, preventing the piston rod from twisting as the rod extends and retracts.

During development, special focus was placed on reducing noise emissions, which was achieved through modifications such as shrinking the resonance body and through bearing optimisation.

With its large spindle diameter and modified spindle nut, not only is force increased but so too is the force/lifetime ratio, with the ETH providing a longer service life than conventional cylinders, according to Parker.

This helps to reduce the overall machine cost of ownership; at the same time, maintenance costs are reduced, thanks to the inclusion of a re-lubricating bore in the cylinder flange.

A variety of limit sensors and force feedback options are available, with the cylinder design allowing sensors and cables to be mounted in grooves in the extrusion and then covered to provide a smooth outside surface.

This is intended to ensure simple cleaning and safe handling.

The company can also provide a complete drive train, including matching drive controllers, motors and gearboxes.

The ETH range currently covers three sizes (ETH032, ETH050 and ETH080), with additional sizes on the way.

The design conforms to the ISO flange standard, making it a ready replacement for pneumatic cylinders.

The ETH is offered as standard in IP54 format with galvanised screws, but is also available with stainless steel screws or in full IP65 format to meet the needs of more demanding environmental conditions.

It can be used in applications where users are looking for an energy-saving electric alternative to either pneumatic or hydraulic cylinders.

Parker Hannifin — Parker Sales UK

With annual sales exceeding $10bn, Parker Hannifin is the world's leading manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets.

To meet its customers' needs in motion and control, Parker provides the broadest range of products available from any single supplier. This is supported by expertise in nine major technologies:

  • Hydraulics
  • Pneumatics
  • Electromechanical
  • Filtration
  • Process control
  • Fluid and gas handling
  • Sealing and shielding
  • Climate control
  • Aerospace

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