rock drill machine

DZYG51G fully hydraulic rock drill This type of heavy duty hydraulic rock drill is driven by double motors and rotates independently. It is used with the hydraulic drilling jumbo, suitable for blast hole drilling at any directions in middle hard and solid rock. It is mostly used for large dimension hole and open-air drilling with the diameter 89-152mm. it is a new type of energy-efficient equipment which can supply stable operation for a long term. The stable operation index is 6000 linear without repair. Main technical parameters: Weight 295 kg Revolution 0-50 r/min Length 1060mm Max. torque 1800Nm(14Mpa) Outside height 240mm Impact flow 140 L/min(12Mpa) Working pressure 9-13Mpa Return flow 65 L/min(15Mpa) Accumulator gas Nitrogen Air compression temperature -20- -40°C High-pressure side pressure 5Mpa Oil temperature 40-60°C Low-pressure side pressure 0.25Mpa Water flush consumption 70°C