Model | HC-42 | HC-53 | |
Drilling dia. | mm | 42 | 53 |
Rotation | rpm | 80 | 80 |
Torque | kN-m | 0.6 | 0.9 |
Thrust (forward) | kN | 10 | 12 |
Thrust (back) | kN | 15 | 18 |
Stroke length | ㎜ | 300 | 300 |
Prime mover | kW / rpm | 7.5-4 | 11-4 |
Drill unit (L / W / H) | ㎜ | 885 / 532 / 450 | 1,125 / 360 / 340 |
Power unit (L / W /H) | ㎜ | 1,550 / 500 / 1030 | 1,380 / 780 / 1,000 |
Weight (Drill unit) | ㎏ | 125 | 150 |
Weight (Power unit) | ㎏ | 490 | 450 |