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Piston tube design for maximum energy absorption

Self-Compensating, Piston Tube Technology
Energy capacity 274 in-lbs/cycle
Stroke 0.47 inch

Soft damping, but enormous capacity: The range of 'soft contact' absorbers SC²25 to SC²190 extends from thread size M10 to M14 and covers effective weight ranges of 2.2 lbs to 3,400 lbs (1 kg to 1,550 kg). All models are characterised by high energy absorption and they also unite the piston tube technology with the diaphragm seal perfected by ACE. This enables direct installation as end position damping in pneumatic cylinders at 72 psi to 102 psi (5 to 7 bar) or applications where deceleration needs to take place close to the pivot point.

They are maintenance-free, have an integrated positive stop and are mountable in any position. The option of a side load adapter allows impact angles of up to 25°. They offer soft contact deceleration where initial impact reaction forces are very low, with the advantages of self-compensation to react to changing energy conditions, without adjustment.

Thanks to their robust design and their durability, these miniature shock absorbers can be used for a wide range of applications. Designers mainly use them for pick and place systems, pneumatic rotary modules and in automation applications.
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Self-Compensating, Piston Tube Technology


Stroke0.47 inch
MM14x1.5 inch

Technical Data

Energy capacity 274 in-lbs/cycle

Energy capacity 443,000 in-lbs/h

Effective weight min. 29 lbs

Effective weight max. 309 lbs

Return Force min. 0.97 lbs

Return Force max. 5.57 lbs

Return Time 0.4 s

Side Load Angle max. 2 °

Impact velocity range 0.29 ft/sec to 18.3 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 and stretch seals and lead to a shorter service life. Please contact ACE for appropriate solution suggestions.

On request

Increased corrosion protection. Special finishes.

General information

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