Product category:
Test Accessories
News Release from: Rietschle Thomas | Subject: Zephyr multi-claw series
Edited by the Electronicstalk Editorial
Team on 07 February 2001
Handling claws for ATE and subassembly
Rietschle's Zephyr multi-claw series are dry-running air compressors and vacuum pumps with applications from ATE to vacuum handling and pneumatic conveying.
Rietschle's Zephyr multi-claw series are highly efficient, dry-running air compressors and vacuum pumps with applications throughout electronics subassembly, from ATE to vacuum handling and pneumatic conveying These twin-shaft, rotary claw units generate frictionless vacuum or pressure, offering an economic alternative to dry-running rotary vane or single claw rotary pumps
This article was originally published on Electronicstalk on 14 Aug 2001 at 8.00am (UK)
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Unlike traditional rotary lobe designs, their high operating efficiency - and hence low installed motor power, is achieved by internal compression of the gas.
The multi-claw has no (wear sensitive) discharge valves, as the rotation of the claws opens and closes the suction and discharge channels.
Zephyr VLR twin-lobed, claw vacuum pumps require minimum maintenance, since the contra-rotating claws operate without contact.
Tolerances are maintained between the claws by a high precision gear drive, and hence, neither lubrication, nor wearing part replacements are needed in the pump chamber.
Operating efficiencies of 60% and better are typical, and maintenance is limited to checking oil levels and maintaining the air inlet filter.
Five basic VLR vacuum pump models offer vacuum up to 100mbar (abs), with nominal displacements from 100 to 500m3/hour Producing oil-free and dust-free compressed air, Zephyr DLR twin-lobed, claw compressors have all the engineering features of the vacuum pump range.
The same robust enclosure houses the pumps, reducing noise levels and directing the flow of circulating air from the integrated cooling air system.
Currently there are five DLR compressors, with nominal capacities from 100 to 500 m3/hour.
High differential pressures up to 2.2bar (g) are attainable at pressure operation.
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