ACE Controls Main Catalog - ACE - #12

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10 ACE Controls Inc. · 800-521-3320 · (248) 476-0213 · Fax (248) 476-2470 · www.acecontrols.com · email: shocks@acecontrols.com W V W V S Fp W V P B R S S V W Hp W V S Mu S H2 Weight with Propelling Force Transfer Devices, Safety Doors, Cutting Shears H3 Weight with Propelling Cylinder Pick-and Place Units, Linear Slides, Robotics H4 Weight with Motor Drive Lift Trucks, Stacker Units, Overhead Cranes H5 Weight on Power Rollers/Conveyor Pallet Line, Friction Conveyor Belt, Steel Tube Transfer W = Moving Weight (lbs) V = Impact Velocity (ft/sec) Fp = Known Propelling Force (lbs) B = Propelling Cylinder Bore (inches) R = Propelling Cylinder Rod (inches) P = Air Pressure (psi) FORMULA E1 = (0.186)•(W)•(V2) E2 = (F)•(s) E3 = E1 + E2 E4 = (E3)•(C) We = E3 / [(0.186)•(V2)] E1 = (0.186)•(500)•(32) = 837 in lbs E2 = (0)•(1) = 0 in lbs E3 = 837 + 0 = 837 in lbs E4 = (837)•(500) = 418,500 in lbs/h We = 837 / [(0.186)•(32)] = 500 lbs EXAMPLE W = 500 lbs V = 3 ft/sec Fp = 0 C = 500/hour Hp = Motor Power (horsepower) Mu = Coefficient of Friction C = Cycles per Hour (/hour) s = Stroke Length of Shock Absorber (inches) F = Propelling Force at Shock Absorber (lbs) SF = Stall Factor E1 = Kinetic Energy (in lbs) E2 = Propelling Force Energy (in lbs) E3 = Energy per Cycle (in lbs) E4 = Energy per hour (in lbs/hour) We = Effective Weight (lbs) H1 Weight with No Propelling Force Examples: Crash Testers, Emergency Stops H1 - Select from Model Rating Chart: MC 3325-3 or MA 3325 F = Fp E1 = (0.186)•(W)•(V2) E2 = (F)•(s) E3 = E1 + E2 E4 = (E3)•(C) We = E3 / [(0.186)•(V2)] F = 30 = 30 lbs E1 = (0.186)•(14)•(2.22) = 12.6 in lbs E2 = (30)•(0.4) = 12 in lbs E3 = 12.6 + 12 = 24.6 in lbs E4 = (24.6)•(100) = 2,460 in lbs/h We = 24.6 / [(0.186)•(2.22)] = 27.3 lbs W = 14 lbs V = 2.2 ft/sec Fp = 30 lbs C = 100/hour s = 0.4 inches H2 - Select from Model Rating Chart: MC 75-3 F = 0.785•(B2-R2)•(P) E1 = (0.186)•(W)•(V2) E2 = (F)•(s) E3 = E1 + E2 E4 = (E3)•(C) We = E3 / [(0.186)•(V2)] Note: R = 0 when using a rodless cylinder or a cylinder working in extension. F = 0.785•(1.52-02)•60 = 106 lbs E1 = (0.186)•(120)•(22) = 89.3 in lbs E2 = (106)•(0.75) = 79.5 in lbs E3 = 89.3 + 79.5 = 168.8 in lbs E4 = (168.8)•(60) = 10,128 in lbs/h We = 168.8 / [(0.186)•(22)] = 226.9 lbs W = 120 lbs V = 2 ft/sec B = 1.5 inches R = 0 inches P = 60 psi C = 60/hour s = 0.75 inches F = (550)•(ST)•(Hp) / V E1 = (0.186)•(W)•(V2) E2 = (F)•(s) E3 = E1 + E2 E4 = (E3)•(C) We = E3 / [(0.186)•(V2)] F = (550)•(2.5)•(2) / 1 = 2,750 lbs E1 = (0.186)•(2,100)•(12) = 390.6 in lbs E2 = (2,750)•(2) = 5,500 in lbs E3 = 390.6 + 5,500 = 5,890.6 in lbs E4 = (5,890.6)•(20) = 117,812 in lbs/h We = 5,890.6 / [(0.186)•(12)] = 31,670 lbs W = 2,100 lbs V = 1 ft/sec Hp = 2 hp SF = 2.5 C = 20/hour s = 2 inches H3 - Select from Model Rating Chart: MA 225 or SC 300-4 H4 - Select from Model Rating Chart: ML 6450 or MC 6450-4 F = (W)•(Mu) E1 = (0.186)•(W)•(V2) E2 = (F)•(s) E3 = E1 + E2 E4 = (E3)•(C) We = E3 / [(0.186)•(V2)] F = (250)•(0.2) = 50 lbs E1 = (0.186)•(250)•(2.52) = 290.6 in lbs E2 = (50)•(1) = 50 in lbs E3 = 290.6 + 50 = 340.6 in lbs E4 = (340.6)•(180) = 61,308 in lbs/h We = 340.6 / [(0.186)•(2.52)] = 293 lbs W = 250 lbs V = 2.5 ft/sec Mu = 0.2 C = 180/hour s = 1 inches H5 - Select from Model Rating Chart: MA 600 or SC 650-3 Horizontal Sizing Examples