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High energy absorption and progressive adjustment

Energy capacity 1,500 in-lbs/cycle
Stroke 0.91 inch

Adjustable and unique: These industrial shock absorbers from ACE, which can be precisely adjusted both at the front and rear, also contribute towards the success of the MAGNUM range. Equipped with excellent sealing technology, an annealed guide bearing and integrated positive stop, they are robust and durable.

These dampers absorb 50 % more energy than their predecessors but are built even more compactly. The larger range of effective loads also opens up options in design and assembly. This makes the ML range especially suitable for effective weights of 661 lbs. to 1,102,311 lbs. (300 kg to 500,000 kg). These shocks are the best option wherever application data changes and flexibility is required.
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CAD Drawings


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Stroke0.91 inch
A max.5.44 inch
B max.0.91 inch
L23.25 inch
M1-1/4-12 UNF inch
d11.18 inch
d21.00 inch

Technical Data

Energy capacity 1,500 in-lbs/cycle

Energy capacity 670,000 in-lbs/h

Energy capacity with oil recirculation 1,500,000 in-lbs/h

Energy capacity with air/oil tank 1,100,000 in-lbs/h

Effective weight min. 661 lbs

Effective weight max. 110,231 lbs

Return Force max. 19.8 lbs

Return Force min. 10.3 lbs

Return Time 0.03 s

Side Load Angle max. 4 °

Impact velocity range MA: 0.5 ft/sec to 16.5 ft/sec. ML: 0.06 ft/sec to 1.5 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

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

Damping medium Automatic Transmission Fluid (ATF)


A noise reduction of 3 dB to 7 dB is possible when using the special impact button (PP). For emergency use only applications and for continous use (with additional cooling) it is sometimes 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, mounting inside air cylinders or other special options are available on request.

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