China HD80A DTH Hammer Mining Machinery Water Well Drilling Tools Without Foot Valve Rock Drilling Tools, Find details about China High Air Pressure, Rock Drilling from HD80A DTH Hammer Mining Machinery Water Well Drilling Tools Without Foot Valve Rock Drilling Tools
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 |