Weight£º 26kgs Overall length£º 650 mm Cylinder Dia£º 65mm Piston stroke: 70mm Operating air pressure£º 0.4-0.5 MPa Impact frequency: 23HZ Impact energy£º 30J Idling speed: 200r/min Air-pipe bore(inner Dia.)£º 19 mm Water-pipe bore(inner Dia.)£º 13 mm Air consumption£º 47L/S Drill rod trailer£º 22 x 108 mm