Rock Drills Model KQD100 Composite DTH Drill The Drill is used for drilling of blastholes, boltcable holes and drainage holes in all types of rock formation in open-pit mines and other engineerings such as water conservancy and water power building and harbour etc. It can better overcome the difficulties in construction on the site where the traffic transport is not convenient or the worksite is uneven. Technical Features: It is used together with the drilling hammer produced by us, with a high drilling efficiency. Taking compressed air as power source, it is safe and reliable due to single power. It is simple in structure, convenient for maneuver, good in adaptability and easy to maintenance. It is suitable for both normal and high air-pressure. Technical specification: Overall dimensions: 1700mm*900mm*600mm Drillhole Diameter: 85-105mm Drillhole Depth: 0-50m Drillhole Dip Angle: 0-360° Working air pressure: 0.5-0.7Mpa (with Model J80B and J100B hammers) 0.8-1.5Mpa (with Model JW80 and JW100 hammers) Air Consumption(Max): 10-12m3/min Drill-rod length: 1000mm Rotary torque: 45kg*m (when working air-pressure 0.5Mpa) Axial Pressure(Max): 700N (when working air-pressure 0.5Mpa) Lift Power(Max): 769N (when working air-pressure 0.5Mpa)