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High resetting forces with gas pressure accumulator

Crane Installations, Optimized Characteristic
Energy capacity 424,800 in-lbs/cycle
Stroke 11.81 inch

Robust powerhouse: the CB63 to CB160 product family with internal system seals are used in heavy duty areas for emergency stop. Even dirt or scratches to the piston rod do not lead to a leakage or failure. Compressed gas accumulators allow return forces of up to 22,481 lb. (100 kN) in the CB models, which can make applications in multiple bridge crane systems safer, for example. The absorber body and the robust, large-sized piston rod bearing are also designed for heavy duty operations.

ACE uses our proprietary custom calculation program to design each shock absorber for the specific customer application.

Customization helps reduce the risk of crashes and incorrect product sizing. Just like all ACE safety shock absorbers, the characteristic curve or damping characteristics of each individual CB unit is individually designed to the customer application.
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Crane Installations, Optimized Characteristic


Stroke11.81 inch
A max.38.58 inch
B25.51 inch
C15.43 inch

Technical Data

Energy capacity 424,800 in-lbs/cycle

Effective weight min. 10,010 lbs

Effective weight max. 847,000 lbs

Reacting Force at max. capacity rating = 42,000 lbs max. lbs

Return Force min. 393 lbs

Return Force max. 6,038 lbs

Side Load Angle max. 2.5 °

Impact velocity range 1.6 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 Integrated

Damping medium Automatic Transmission Fluid (ATF)

Filling pressure Approx. 81 psi to 86 psi. Rod return by integrated nitogen accumulator.


The shock absorber can be pushed through its stroke. In creep speed conditions the shock absorber provides minimal resistance and there is no braking effect.

On request

Special oils, special flanges, additional corrosion protection etc.

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