Hydraulic Ram Double Acting General Purpose Steel Nominal Capacity 150 ton Max Push Capacity 150 ton Stroke Length 6 1/8 in Nominal Stroke Length 6 in Effective Push Area 30.71 sq in Max Pressure 10 000 psi Oil Capacity Push 188.28 cu in Retracted Height 15.19 in Extended Height 21.31 in Outside Dia 8 in Plunger Dia 4.5 in Plunger Thread Size 3-3/8 In.-16 Collar Thread Size 8 In.-12 Base Bolt Circle Dia 6.25 in Center Hole Dia 6 1/4 in Series RR