1 Drilling depth (NQ drill rod) Approximately 500m 2 Spindle speed Forward 57； 99； 157； 217； 270； 470； 742； 1024  Reverse 45； 212  r/min 3 Spindle Maximum torque 3200 N·m 4 Spindle max pulling force 60 KN 5 Spindle stroke 600 mm 6 Max. lifting force of the hoist with single rope 30 KN 7 Inner diameter of the spindle 96 mm 8 Retraction distance 305 mm   Retraction distance for the host drill rig 330 mm   Retraction distance for both drill rig and tower 160 mm 10 Oil pump SCB32/12 double gear pump 11 Power unit engine power 30 KW     1500 r/min electric motor 22KW   1470 r/min 12 Crawler maximum walking speed 1.2  km/h 13 Crawler Climbing capacity 25°, no more than 25 ° 14 Tracked Ground pressure 0.042  MPa 15 Rig height 8 m 16  Hook load of the tower 29.4 kN 17 Max.static load of crown block beam 58.8 kN 18 Quantity of pulley 2 19 Angle range of tower ups and downs 0°～ 90° 20 Rig Dimensions ( tower horizontal position ) (L*W*H) 4450×2166×3080  mm 21 Total weight about 5500 kg