AR Series
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AR Series Adjustable Shock Absorber THE SHOCK ABSORBER BUILT TO WITHSTAND THE ABUSE OF FOUNDRY AND STEEL MILL SERVICE. Dimensions Common To Spring Or Air Return Symbol THESE FEATURES PROLONG THE LIFE AND ENSURE PEAK PERFORMANCE FOR EQUIPMENT WHICH REQUIRES HEAVY DUTY SERVICE: • UNIFORM RATE OF DECELERATION, THROUGHOUT THE LENGTH OF WORKING STROKE AND ADJUSTMENT RANGE • CAPACITIES TO ONE MILLION INCH POUNDS • BORE SIZES 11 ⁄ 8 , 2 AND 4 INCH • SPRING OR AIR RETURN • STROKE LENGTH TO 10 INCHES HOW TO ORDER THE AR SERIES SHOCK ABSORBERS 1 8 ARS•B•1 ⁄ •2•PS•99 Efdyn’s Adjustable Shock Absorber Prefix S– Standard Model F– Foundry Model with 1/2” rod extension T– Foundry Model with 2” rod extension Standard Nominal Adjustment location Bore • B–Back • F–Front Size Stroke Length Mounting Style • P-Primary • B- Back Flange • F- Front Flange • L-Lug • HR- Hinge-Rod eye Piston Rod Return Method S-Spring Return A- Air (External Accumulator Required) Designates Standard Unit Without Modifications *HEAT DISSIPATION CAPACITY * Heat capacity ratings are based on still air conditions (800F ambient) and max. hydraulic fluid operating temperature of 2000F. Spring return model ratings apply to self-contained units. Air return model ratings apply to units with circulating hydraulic systems (external reservoir - double connecting ports). Heat capacity ratings can be increased using special fluid and seals and/or heat exchanger systems. Consult factory. ** When load propelling force exceeds 25% of total stopping force, based on maximum unit capacity rating, external mechanical load stops are recommended. Mechanical load stops must be positioned to allow piston rod to compress to within 1/16” of completing full stroke. If mechanical load stops cannot be positioned this accurately, specify piston rod extension for additional clearance as full stroke must be utilized for proper unit performance. *** Consult factory for optimum adjustability if unit selected will be used above 80% of its max. working capacity rating when impact velocities are 1.0 FPS or less, and under 60% of its max. working capacity rating when impact velocities are 15.0 FPS or greater. Bore Size (Inches) Bore Size (Inches) Bore Size (Inches) **** 4 1/2” is for rotatable jacket tube; welded jacket tube is 4 3/8”. ASK ABOUT OUR EXPEDITE SERVICE! 32

MOTION MANAGEMENT FRONT FLANGE MOUNT - STYLE "F" BACK FLANGE MOUNT - STYLE "B"