China Hjg HD35 3 Inch Drilling DTH Hammer, Find details about China DTH Hammer, Rock Drilling from Hjg HD35 3 Inch Drilling DTH Hammer
Length(exclude bit) | Weight(exclude bit) | External Diameter | Bit Shank | Hole Range | Connection Thread | |
930mm | 25.00 kg | Φ82 mm | DHD3.5 | Φ90mm _ Φ110mm | API 2 3/8'' Reg | |
Working Pressure | Impact rate at 0.5 MPa | Recommended Rotary Speed | Air Consumption | |||
1.0 MPa | 1.5 MPa | |||||
1.0 - 1.5 MPa | 28 Hz | 25-40 rpm | 4.5 m³/min | 9 m³/min |