China DTH Hammer High Air Pressure HD40 with Foot Valve Rock Drilling Tools Mining Machine Water Well Drilling, Find details about China High Air Pressure, Rock Drilling from DTH Hammer High Air Pressure HD40 with Foot Valve Rock Drilling Tools Mining Machine Water Well Drilling
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 |