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Exceptionally high endurance and with the lowest resetting force

Self-Compensating, Rolling Diaphragm Technology
Energy capacity 360 in-lbs/cycle
Stroke 0.50 inch

Tried-and-tested and durable: With a hermetically sealed rolling diaphragm in each absorber, the MC150 to MC600 product family is suitable for an exceptionally high lifetime of use with up to 25 million cycles. The rolling diaphragm technology perfected by ACE ensures complete separation of the damping fluid from the surrounding air. This makes it possible for direct installation in a pressure chamber to provide end stop damping in pneumatic cylinders up to approximately 100 psi (7 bar).

The rolling diaphragm delivers very low return forces for these maintenance-free, ready-to-install absorbers. An integrated positive stop and progressive energy capacities, with a wide range of effective weight, make these miniature shock absorbers a winner. Furthermore, the use of a side load adapter allows impact angles of up to 25°. Stainless steel options are available for greater environmental compatibility. Self-compensating shock absorbers react to changing energy conditions, without adjustment.

These self compensating miniature shock absorbers are capable of universal mounting even inside a cylinder. These shocks are ideal for use in multitude of applications including material handling equipment, packaging equipment, medium robotics and machine tools.
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Self-Compensating, Rolling Diaphragm Technology


Stroke0.50 inch
MM20x1.5 inch

Technical Data

Energy capacity 360 in-lbs/cycle

Energy capacity 400,000 in-lbs/h

Effective weight min. 400 lbs

Effective weight max. 2,000 lbs

Return Force min. 1 lbs

Return Force max. 1.5 lbs

Return Time 0.3 s

Side Load Angle max. 4 °

Impact velocity range 0.22 ft/sec to 1.03 ft/sec

Operating temperature range 32 °F to 150 °F

Mounting In any position

Positive stop Integrated

Damping medium Oil, temperature stable


If precise end position datum is required consider use of the stop collar type AH.

Safety information

External materials in the surrounding area can attack the rolling seal and lead to a shorter service life. Please contact ACE for appropriate solution suggestions. Suitable for use in pressure chambers up to 101.53 psi.

On request

Increased corrosion protection. Special threads or other special options.

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