air hammer have many advantages.Such as reliable performance,operational cleverness ... 250Kg 480Kg 780KgHammer weight(excluding Anvil and motor) 470Kg 820Kg 2000KgStandard Accessories OptionalWorking unit, Motor, V-belt, Belt pulley, Protecting cover, Guide ... , Bolt, Gasket, Nut, Washer, Piston ring for front cylinder Electric box air hammer