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