General | |||
1 | Geology drilled | All kinds | |
2 | Drilling Type | DTH & Mud Rotary | |
3 | Drill system and operation | Hydraulic | |
4 | Hole Diameter | mm | Φ140—Φ450 |
5 | Hole Depth | m | 600 |
6 | Rotation Torque | Nm | 6500 1st Gear |
13000 2nd Gear | |||
7 | Rotation Speed | rpm | 0-80 1st Gear |
0-160 2nd Gear | |||
8 | Drill pipe diameter | mm | 89/114 |
9 | Drill pipe length | mm | 4000/4500 |
10 | Axial pressure | T | 10 |