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