China HD80A DTH Hammer Without Foot Valve Mining Machine Rock Drilling Tools High Air Pressure Rock Drilling Machine, Find details about China High Air Pressure, Rock Drilling from HD80A DTH Hammer Without Foot Valve Mining Machine Rock Drilling Tools High Air Pressure Rock Drilling Machine
Length | Weight | Outer diameter | Bit shank | Hole range | Connection thread | |
1359mm | 175kgs | 185mm | HD80 | 195-254MM | API 4 1/2" 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 | 22Hz | 15-25r/min | 12m3/min | 22m3/min | 28m3/min |