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Piston tube design for maximum energy absorption

Self-Compensating, Piston Tube Technology
Energy capacity 1,372 in-lbs/cycle
Stroke 0.91 inch

True performers: The SC33 to SC45 absorber models are strong and durable by combining the proven sealing technology from the MAGNUM range including membrane accumulator with the well-known piston tube technology from the SC² family. We increase the oil volume to ensure the maximum effective weights. Short stroke lengths of .98" to 1.96" (25 mm to 50 mm) deliver shorter braking times in combination with high energy absorption.

These dampers safely and reliably decelerate rotary movements without unwanted recoil effects. Installation close to the pivot point is possible. ACE's generation of piston tube manage low impact speeds with ease. Self-compensating shock absorbers react to changing energy conditions, without adjustment.
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Self-Compensating, Piston Tube Technology


Stroke0.91 inch
A max.7.01 inch
B max.0.91 inch
L24.80 inch
M1-1/4-12 UNF inch
d11.18 inch
d21.00 inch

Technical Data

Energy capacity 1,372 in-lbs/cycle

Energy capacity 663,806 in-lbs/h

Effective weight min. 10,999 lbs

Effective weight max. 19,698 lbs

Return Force max. 20.01 lbs

Return Force min. 9.89 lbs

Return Time 0.75 s

Side Load Angle max. 4 °

Impact velocity range 0.66 ft/sec to 1.51 ft/sec. Other speeds on request.

Operating temperature range 10 °F to 150 °F. Other temperatures on request.

Mounting In any position

Positive stop Integrated

Damping medium Low temperature hydraulic oil


A noise reduction of 3 dB to 7 dB is possible when using the special impact button (PP).

Safety information

External materials in the surrounding area can attack the seal components and lead to a shorter service life. Please contact ACE for appropriate solution suggestions. Do not paint the shock absorbers due to heat emission.

On request

Special oils, mounting inside air cylinders or other special options are available on request.

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