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Deceleration of heavy loads and progressive adjustment

Energy capacity 140,000 in-lbs/cycle
Stroke 5.00 inch

Strong and adjustable: Also in ACE's product range of units are adjustable heavy duty industrial shock absorbers. The models from the A1½ to A3 range, which weigh between 16.6 lbs and 105.8 lbs (7.55 and 48 kg), are extremely robust, ready-to-install hydraulic machine components with impressively high energy absorption levels and a wide range of damping rates.

Their special aspect is the flexibility, as all the absorbers can be adjusted using a socket on the absorber base and be perfectly adapted to the application. The A models cover a range of effective weights from 0.66 lbs to 449,743 lbs. (0.3 to 204,000 kg) and can absorb up to 389,433 in-lbs. (44,000 Nm) energy.
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CAD Drawings


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Stroke5.00 inch
A max.19.31 inch
B max.8.31 inch
C9.95 inch
D max.8.81 inch
G23.05 inch
H9.05 inch

Technical Data

Energy capacity 140,000 in-lbs/cycle

Energy capacity 20,000,000 in-lbs/h

Energy capacity with air/oil tank 25,000,000 in-lbs/h

Effective weight min. 1,050 lbs

Effective weight max. 340,000 lbs

Return Force min. 59 lbs

Return Force max. 156 lbs

Return Time 0.6 s

Side Load Angle max. 3 °

Impact velocity range 0.5 ft/sec to 15 ft/sec. Other speeds on request.

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

Mounting In any position

Positive stop External positive stops 0.10" to 0.12" before the end of stroke provided by the customer.

Adjustment Hard impact at the start of stroke, adjust the ring towards 9. Hard impact at the end of stroke, adjust the ring towards 0.

Damping medium Automatic Transmission Fluid (ATF)


For emergency use only applications and for continous use it is possible to exceed the published max. capacity ratings. In this case, please consult ACE.

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, nickel-plated, increased corrosion protection or other special options are available on request.

General information

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