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Optimum corrosion protection

Self-Compensating, Stainless Steel, Rolling Diaphragm Technology, PTFE Bellow
Energy capacity 175 in-lbs/Cycle
Stroke 0.50 in

Hermetically sealed and rustproof: The Protection series PMC is also available in a stainless steel design. This is of particular interest to the food and packaging industries.
Their main special feature is the compact, totally sealed bellow between the body and the cap made of PTFE (Teflon). This protection safely encapsulates the ACE rolling diaphragm from the outside environment. Aggressive fluids don't stand a chance. The PMC series is an excellent alternative if the accessory option of the SP type air bleed collar cannot be used due to a lack of compressed air. Self-compensating shock absorbers react to changing energy conditions, without adjustment.

The PMC series self-compensating miniature shock absorbers, produced from stainless steel, are primarily suitable for use in the food industry, but are also wherever a high-quality appearance is important e.g. in shipbuilding.
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Technical Data

Energy capacity 175 in-lbs/Cycle

Stroke 0.50 in

Impact velocity range 0.26 ft/sec to 19.7 ft/sec. Other speeds on request.

Operating temperature range 32 °F to 150 °F

Mounting In any position

Material Outer body: Stainless steel (1.4404, AISI 316L) ; Main bearing: Plastic ; Piston rod: Hardened stainless steel (1.4125, AISI 440C) ; Bellow: PTFE, steel insert: Stainless steel (1.4404/1.4571, AISI 316L/316Ti) ; Rolling diaphragm: EPDM

Damping medium Oil, temperature stable

Application field Finishing and processing centers, Clean room areas, Pharmaceutical industry, Medical technology, Food industry, Machines and plants


Final preliminary test must be done on the application.

Safety information

The volume of the hermetically sealed PTFE bellows is displaced by volume compensation of the rolling diaphragm seal.

On request

Special accessories available on request.