China Mining DTH Hammer and Bits for Mineral Exploration, Find details about China Mining DTH Hammer, RC DTH Hammer from Mining DTH Hammer and Bits for Mineral Exploration
KD25 | KD35 | KD45 | KD55 | KD65 | KD75 | KD85 | |
Length without bit | 872mm | 888mm | 1011mm | 1110mm | 1238mm | 1258mm | 1359mm |
Weight without bit | 16kg | 25kg | 43.2kg | 69kg | 98kg | 120kg | 175kg |
Out Diameter | Φ71mm | Φ82mm | Φ99mm | Φ125mm | Φ142mm | Φ165mm | Φ180mm |
Bit Shank | KD25 | IR3.5 | COP44/DHD340 | COP54/DHD350R | COP64/DHD360 | COP64/DHD360 | COP84/DHD380 |
Hole Range | Φ76-90mm | Φ90-115mm | Φ110-135mm | Φ135-155mm | Φ155-203mm | Φ175-216mm | Φ195-254mm |
Connection Thread | T42*10*1.5 | API 2⅜"Reg | API 2⅜"Reg | API 2⅜"Reg API 3 ½ "Reg | API 3 ½ "Reg | API 3 ½ "Reg | API 4 ½ "Reg |
Working Pressure | 10-15Bar | 10-15Bar | 12-20Bar | 13-23Bar | 15-30Bar | 15-30Bar | 15-30Bar |
Impact Rate at 17Bar | 25HZ | 25HZ | 30HZ | 28HZ | 25HZ | 23HZ | 22HZ |
Recommended rotation speed | 22-35r/min | 25-40r/min | 22-35r/min | 20-35r/min | 20-30r/min | 20-30r/min | 15-25r/min |
Air consumption | 10Bar:4m³/min | 10Bar:3.8m³/min | 10Bar:6m³/min | 10Bar:7m³/min | 10Bar:9m³/min | 10Bar:11m³/min | 10Bar:12m³/min |
15Bar:6m³/min | 15Bar:7.5m³/min | 18Bar:10m³/min | 18Bar:14m³/min | 18Bar:18m³/min | 18Bar:20m³/min | 18Bar:22m³/min | |
24Bar:15m³/min | 24Bar:19m³/min | 24Bar:26m³/min | 24Bar:28m³/min | 24Bar:28m³/min |