Shock resistance

Citation

(2002), "Shock resistance", Anti-Corrosion Methods and Materials, Vol. 49 No. 6. https://doi.org/10.1108/acmm.2002.12849fad.013

Shock resistance

Shock resistance

Keywords: Shock absorbers, Corrosion resistance

Hoerbiger-Origa reports that it has expanded its range of miniature Industrial Shock Absorbers or Linear decelerators, with 38 versions of a corrosion resistant model called Arinor Line.

A thin dense chrome plating that nodularly adheres to the high strength steel body of the Absorber creates the corrosion resistance. According to Hoerbiger-Origa this is guaranteed to be of even thickness even in the valleys and peaks of the threaded body and cannot delaminate to compromise performance. Stated to be complying with military specification, Hoerbiger-Origa Armor Line shock absorbers are believed ideal for use in a number of industries including aerospace, electronics and clean rooms.

The range encompasses ten sizes, with effective weight capacities from 2 kg to 2,000 kg (5 lb to 5,000 lb). The internal shock absorbing mechanism is available in either adjustable or fixed format, while the body is externally threaded along its whole length for ease of installation. Hoerbiger- Origa reportedly has ensured that Armor Line is dimensionally equivalent to other shock absorbers, so that direct replacement is possible. In all applications they claim to reduce maintenance and replacement costs and increase service life.

A shock absorber works by converting the kinetic energy of a moving machine part into heat energy and dissipating this into the surrounding atmosphere. It does this smoothly over the few milliseconds it takes to stop a machine axis or other load; thus shock load and vibration are avoided.

This is achieved because the shock absorber has a series of orifices down the length of an inner tube through which a piston travels. At first, all orifices are open giving a large flow at relatively low pressure; but as the piston advances it progressively closes off more and more holes so the pressure (which is in effect the shock load) remains almost constant.

All shock absorbers from Hoerbiger-Origa are reported to be designed to give optimum performance in all applications. They are stated to be manufactured using the highest quality materials and utilise key design features to ensure long trouble free life, these include:

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  a one piece piston and rod made from high grade steel, hardened and heavy chrome plated for maximum wear resistance;

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  extra large diameter piston rod for superior strength;

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  positive check valve for efficient oil flow and smooth operation;

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  extra long neck bearing for maximum support and side load capability;

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  high pressure inner tube made from the highest grade carbon steel and heat treated for maximum strength.

Details available from: Hoerbiger-Origa Ltd, Tel: +44 (0) 1684 850000; Fax: +44 (0) 850555; E-mail: ray-barnes@hoerbiger-origa.com; Web site: www.hoerbiger-origa.com