... of drilling process, applicable to the geological, metallurgical,coal,oil, natural gas, groundwater, etc. The whole machine adopts ... 33kW*3Rotate speed: 3000rpmTurbocharged after cooled diesel engineHydraulic systemMain pump: 111L/min, 28MPaAuxiliary pump: 58L/min, 16MPaPower HeadThe bore diameter ... 70kgRack100kgRope hoist300kgPower unit(excluding water tank,oil pump)200kg*2Hydraulic oil tank200kg