BLTB-53 Hydraulic Hammer Specification: Weight: 141 kg Length: 1400 mm Required Oil Flow: 20-50 L/min Working Pressure: 90-120 Kg/cm2 Impact Rate: 600-1100 b.p.m Hose Diameter: 1/2 In Chisel Diameter: 53 mm Chisel Length: 530mm Applicable Excavator: 2.5-4.5 ton