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DQ40B-JH
DQ40B-JH is a top drive system with AC variable - frequency controlled drive, equipped with induction motor with a continuous rated power 315 kW ( 422 hp).
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| Drive type |
AC VFD |
| Rated drilling depth, m (114 mm drill pipe) |
4 000 |
| Rated load capacities, KN (ton) |
2 220 (229) |
| Power supply, VAC/HZ |
600 / 50 HZ or 60 HZ |
| Rated current, A |
415 |
| Maximum current, A |
623 |
| Rated power (continuous), kW (hp) |
315 ( 422 ) |
| Rotary speed, r/min |
0～180 |
| Drilling torque (continuous), kNm |
33 кНм |
| Max. torque of break out, kNm |
50 |
| Backup tong range, Ø, mm |
96 ～ 197 |
| Hydraulic system working pressure, MPa |
16 |
| Rated pressure of IBOP, MPa |
70 |
| Mud circulating diameter, mm |
62 |
| Rated circulating pressure, MPa |
35 |
| Max. distance between main shaft center and the front end, mm |
570 |
| Main body height, m |
4.8 |
| Working height, m |
5.2 |
| Ambient temperature |
-45℃ ～ +55℃ |
| Main body weight, t |
8.5 |
| Measurements body height, mm |
4830 × 1360 × 1220 |
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