Hydraulic Ram Double Acting General Purpose Steel Nominal Capacity 30 ton Max Push Capacity 30 ton Stroke Length 8 1/4 in Nominal Stroke Length 8 in Effective Push Area 6.51 sq in Max Pressure 10 000 psi Oil Capacity Push 53.67 cu in Retracted Height 15.25 in Extended Height 23.5 in Outside Dia 4 in Plunger Dia 2.13 in Plunger Thread Size 2-1/2 In.-12 Collar Thread Size 3-9/29 In.-12 Base Bolt Circle Dia 2.88 in Center Hole Dia 9 1/2 in Series RR