ACE Controls Main Catalog - ACE - #6

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4 ACE Controls Inc. · 800-521-3320 · (248) 476-0213 · Fax (248) 476-2470 · www.acecontrols.com · email: shocks@acecontrols.com 1 2 3 Q Q t t Force lbs (N) Force lbs (N) v ft/s (m/s) Stopping Stroke Stopping Stroke Stopping Time Hydraulic Dashpot ACE Shock Absorber Hydraulic Dashpot ACE Shock Absorber ACE Shock Absorber Hydraulic Dashpot 1. Cylinder Cushions and Dashpots (High stopping force at start of the stroke). With only one metering orifice the moving load is abruptly slowed down at the start of the stroke. The braking force rises to a very high peak at the start of the stroke (giving high shock loads) and then falls away rapidly. 2. Springs and Rubber Bumpers (High stopping forces at end of stroke). The moving load is slowed down by a constantly rising reaction force up to the point of full compression. These devices store energy rather than dissipate it, which causes the load bounce back. 3. ACE Industrial Shock Absorbers (Uniform stopping force through the entire stroke). The moving load is smoothly and gently brought to rest by a constant resisting force throughout the entire shock absorber stroke. The load is decelerated with the lowest possible force in the shortest possible time eliminating damaging force peaks and shock damage to machines and equipment. This is a linear deceleration force stroke curve and is the curve provided by ACE industrial shock absorbers. Premise: Same maximum reaction force. Result: The ACE shock absorber can absorb considerably more energy (represented by the area under the curve.) Benefit: By installing an ACE shock absorber production rates can be more than doubled without increasing deceleration forces or reaction forces on the machine. Premise: Same energy absorption (area under the curve). Result: The reaction force transmitted by the ACE shock absorber is very much lower. Benefit: By installing the ACE shock absorber the machine wear and maintenance can be drastically reduced. Premise: Same energy absorption. Result: The ACE shock absorber stops the moving load in a much shorter time. Benefit: By installing an ACE shock absorber cycle times are reduced giving much higher production rates. Comparison Energy Capacity Reaction Force (stopping force) Stopping Time Stopping stroke Force lbs (N) General Information