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