ACE Controls Main Catalog - ACE - #7

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5 ACE Controls Inc. · 800-521-3320 · (248) 476-0213 · Fax (248) 476-2470 · www.acecontrols.com · email: shocks@acecontrols.com ACE pioneered the use of one piece / closed end bodies and inner pressure chambers in its range of shock absorbers. This design concept provides an extremely strong construction which can withstand much higher internal pressures and overload forces without mechanical damage. Consider what happens if the shock absorber is accidentally overloaded or in the unlikely event of partial oil loss due to excessive seal wear or damage. Compare the internal design used by ACE with that of some of its competitors: Some other manufacturers use bodies and inner pressure chambers made from tube stock. The internal parts are held in by a snap ring etc. which then takes all the load and can fail suddenly and catastrophically. What happens with an overload or gradual oil loss? The snap ring breaks or is extruded due to excessive force. Machine damage!! Equipment Stops!! Production Halted!! Emergency Repair!! Corrective Action: Remove and replace the shock absorber with new one (repair not possible). ACE builds its shock absorbers with closed end/one piece bodies and inner pressure chambers which greatly reduces the chance of sudden failure or machine damage in the event of an overload. What happens with an overload or gradual oil loss? Harder bottoming out force becomes apparent. The shock absorber continues to work and can be replaced then or at the end of the shift. Corrective Action: Remove and replace the shock absorber. Refill with fresh oil or repair. P = 5801 psi (400 bar) P = 5801 psi (400 bar) P = 5801 psi (400 bar) P = 5801 psi (400 bar) P = 0 psi (0 bar) * As a moving load impacts the shock absorber, the piston travels through stroke and forces hydraulic fluid through the multiorifice inner tube. The total orifice area decreases at a rate consistent with the decay of impact velocity, resulting in true linear deceleration. F = Force lbs (N) P = Internal pressure psi (bar) s = Stroke in (m) t = Deceleration time (s) v = Velocity ft/s (m/s) Outer body and Pressure chamber with closed rear end (one-piece) Snap Ring (Outer body and inner pressure chamber made from tube stock.) *1 *0 . *2 . . *3 . . . *4 . . . . v = 6.56 ft/sec (2 m/s) v = 4.92 ft/sec (1.5 m/s) v = 3.28 ft/sec (1 m/s) v = 1.64 ft/sec (0.5 m/s) v = 0 ft/sec (0 m/s) ACE Shock Absorber Other Shock Absorber General Information F/P s/t v t