China Mining Machinery DTH Hammer with Foot Valve HD40 Water Well Drilling Tools Rock Driling Machine, Find details about China High Air Pressure, Rock Drilling from Mining Machinery DTH Hammer with Foot Valve HD40 Water Well Drilling Tools Rock Driling Machine
Length | Weight | Outer diameter | Bit shank | Hole range | Connection thread | |
1030mm | 39kgs | 99mm | HD40 | 110-135MM | API 2 3/8" Reg | |
Working pressure | Impact rate at 1.7Mpa | Recommended rotation speed | Air consumption | |||
1.0 Mpa | 1.8 Mpa | 2.4 Mpa | ||||
1.0-2.5Mpa | 27Hz | 25-40r/min | 6m3/min | 10m3/min | 15m3/min |