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DQ70BS-JH
DQ70BS-JH is a top drive system with AC variable - frequency controlled drive, equipped with two induction motors with a continuous rated power 2 x 315 kW ( 2 x 422 hp).
Drive type | AC VFD |
Rated drilling depth, m (114 mm drill pipe) | 7000 |
Rated load capacities, KN (ton) | 4450 (459) |
Power supply, VAC/HZ | 600 /50 HZ or 60 HZ |
Rated current, A | 405 x 2 |
Maximum current, A | 608 x 2 |
Rated power (continuous), kW (hp) | 315 × 2 (422 × 2) |
Rotary speed, r/min | 0~220 |
Drilling torque (continuous), kNm | 55 |
Max. torque of break out, kNm | 82 |
Backup tong range, Ø, mm | 96~197 |
Hydraulic system working pressure, MPa | 16 |
Rated pressure of IBOP, MPa | 70 |
Mud circulating diameter, mm | 76 |
Rated circulating pressure, MPa | 35 or 52 |
Max. distance between main shaft center and the front end, mm | 925 |
Main body height, m | 5.7 |
Working height, m | 6.0 |
Ambient temperature | -45℃~+55℃ |
Main body weight, t | 15 |
Measurements body height, mm | 5700 × 1700 × 1750 |