Drilling depth( m ) 1000 Spindle speed (r/min) Forward 83;152;217;254;316;468;667;970 Reverse 67;206 Max. spindle torque(Nm) 4250 Spindle stroke (mm) 600 Inner diameter of spindle (mm) Φ93 Max. pull/push force(KN) 120/90 Max. hoisting force (single wire rope(KN) 45 Hoisting speed(the third layer)(m/s) 0.70,1.29,1.84,2.68 Drum capacity and wire rope dia.)(m) 17.5mm(170kg/mm2)110 m 18.5mm(170kg/mm2)90 m Speed of water brake (r/min) 700~1800 Water brake balance speed of single rope / single rope balancing load 3~8m/s/45KN Rated pressure of hydraulic system(Mpa) 8 Driving stem Driving stemΦ89×79×6000mm Power unit Electric motor Y225S-4 37Kw 1480r/min Diesel engine R4105G54 42Kw 1480r/min Diesel enige YC4108ZD 50Kw 1500r/min Weight(excluding power unit) (kg) 2200 Max. detachable subassembly(kg) 350 Dimension(LXWXH) (mm) 3038×1100×1938