yytz28-4 hydraulischen Bohrhammer Einheit

YYTZ28-4 hydraulic rock drill unit: About 750 kg weight,with four Dang Shan YYT28 hydraulic leg drills,power consumption is about 32 KWh per hour.And the YunNan Tin Group used this model for the main tunnel drilling,has been complete the tunnel up to 3 kilometers during one year and the best tunneling rate of progress reached 330.4m in one month. Power station size: ModelLength×Width×HeightmWeightkgPowerkwYYTZ28-41.5×1.1×0.975037 YYT28 Hydraulic leg drill: Specifications shankWaterflushingAirflushingWeightkgLengthOverallmmPistonStrokemmPistonDiammOilflowL/min22×108√√28600243032-35HydraulicPressureMpaImpactEnergyJImpactFrequencyJTorqueNmSpinSpeedr/minDrillingHole diammWaterPressureMpa15-17.555-6555-6050-55250-300φ32-460.1-0.3 support leg Weight kgLength mmLength mm(extended)Feed length mmFeed cylinderDia mm12.514002600111047