ACE

9 9 Issue7.2014 Specifications subject to change ACE Controls Inc. · Tel. 800-521-3320 · (248) 476-0213 · Fax (248) 476-2470 · E-mail: shocks@acecontrols.com · www.acecontrols.com 1.HydraulicDashpot (Highstopping forceat start of thestroke). Withonly onemeteringorifice themoving load is abruptly sloweddown at the start of the stroke. Thebraking force rises to a very highpeak at the start of the stroke (givinghigh shock loads) and then falls away rapidly. 2.SpringsandRubberBumpers (Highstopping forcesat endof stroke). Besides havinghigh forces at full compression, they also storeenergy rather than dissipating it causing the load tobounceback again. 3.AirBumpers,PneumaticCylinderCushions (Highstopping forceat endof stroke). Due to the compressibility of air thesehave a sharply rising force characteristic towards theendof the stroke. Themajority of theenergy is absorbednear theendof the stroke. 4.ACE Industrial ShockAbsorbers (Uniformstopping force through theentire stroke). Themoving load is smoothly andgently brought to rest by a constant resisting force throughout theentire shock absorber stroke. The load is deceleratedwith the lowest possible force in the shortest possible timeeliminatingdamaging forcepeaks and shock damage tomachines andequipment. This is a linear deceleration force stroke curve and is the curveprovidedbyACE industrial shock absorbers. In addition they considerably reducenoisepollution. Assumption: Samemaximum reaction force. Result: TheACE shock absorber can absorb considerablymoreenergy (represented by the areaunder the curve). Your advantage: By installing anACE shock absorber production rates canbemore than doubledwithout increasing deceleration forces or reaction forces on themachine. Assumption: Sameenergy absorption (areaunder the curve). Result: The reaction force transmittedby the ACE shock absorber is verymuch lower. Your advantage: By installing theACE shock absorber themachinewear andmaintenance canbedrastically reduced. Assumption: Sameenergy absorption. Result: TheACE shock absorber stops the moving load in amuch shorter time. Your advantage: By installing anACE shock absorber cycle times are reducedgiving muchhigher production rates. ACEShockAbsorber Hydraulic Dashpot StoppingStroke Force (lbs) EnergyCapacity Q Q ReactionForce (StoppingForce) ACEShockAbsorber Hydraulic Dashpot StoppingStroke Force (lbs) StoppingTime ACEShockAbsorber Hydraulic Dashpot Stopping Time v (ft/s) t t Comparison StoppingStroke StoppingForce (lbs) Hydraulic Dashpot Pneumatic Cylinder- Cushions Springs or Rubber Bumpers ACE Industrial ShockAbsorbers ComparisonofDampingSystems