China HD40A DTH Hammer Mining Machinery Water Well Drilling Tools Without Foot Valve Rock Drilling Tools Digging Machine, Find details about China High Air Pressure, Rock Drilling from HD40A DTH Hammer Mining Machinery Water Well Drilling Tools Without Foot Valve Rock Drilling Tools Digging Machine
Length | Weight | Outer diameter | Bit shank | Hole range | Connection thread | |
1011mm | 43.2kgs | 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 | ||||
1.0-3.0Mpa | 30Hz | 22-35r/min | 6m3/min | 10m3/min | 15m3/min |