Верхние силовые приводы

Top drive model DQ50/3150DB DQ70/4500DB HDQ70/4500DB

DQ90/6750DB

Nominal drilling depth (114 mm drill pipe), m

3500 ~ 5000 4500~7000 4500~7000

6000~9000

Rated load, kN (tons)

3150 (350) 4500(500) 4500(500)

6750 (750)

Max.continous drilling torque, N*m (lb-ft)

46700 (34444) 52600 (38796) 58000 (42779)

80000 (59005)

Max. breakout torque, N*m (lb-ft)

70000 (51630) 78900 (58194) 87000(64168)

140000(103259)

Brake torque, N*m (lb-ft)

53000 (39090) 53000 (39090) 80000 (59005)

100000 (73756)

Range of main shaft speed, r/min

0 ~227 0 ~ 227 0 ~ 227

0 ~ 241

Connection shackle type of saver sub and drill pipe

NC 50* NC 50* NC 50*

NC 50*

Handling range of drill pipe by backup caliper, mm

Ф 79.4 ~Ф203.2 (2 7/8 ~6 5/8) Ф 79.4 ~Ф203.2 (2 7/8 ~6 5/8) Ф 79.4 ~Ф203.2 (2 7/8 ~6 5/8)

Ф 73 ~Ф203.2 (2 7/8 ~6 5/8)

Max.bore diameter of backup caliper, mm

Ф216 Ф216 Ф216

Ф260

Mud passage, pressure mm, MPa

Ф76, 35 Ф76, 35 Ф76, 35

Ф102, 52.5

Rated power of main motor, kW

2 x 280 2 x 315 2 x 350

2 x 450

Working height of main body (with hook), m

5.5 5.52 5.52

6.45

Working height of main body (with traveling block), m

5.965 5.985 5.985

6.91

Note: Shackles with mark * can be changed upon clients’ requirements

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