Specifications
Drilling Rig Hook:
1 API 8C
2 Hydraulic bumper/safeguard locking device
3 High quality/nondestructive inspection
Item | Model |
DG225 | DG315 | DG450 | DG675 | DG900 |
Max. hook load (kN) | 2250 | 3150 | 4500 | 6750 | 9000 |
Opening size of the main hook (mm) | 160 | 220 | 220 | 240 | 385 |
Spring stroke (mm) | 180 | 200 | 200 | 200 | 200 |
Overall dimensions | L(mm) | 2545 | 2953 | 2953 | 3541 | 4710 |
W(mm) | 780 | 890 | 890 | 1075 | 1330 |
H(mm) | 750 | 830 | 880 | 1110 | 1300 |
Weight (kg) | 2180 | 3410 | 3496 | 5341 | 12100 |
- Hook consists mainly of the bail, the bail pedestal, cylindrical shell, hook body, hook lever, and spring, etc.
- The inner and outer springs are mounted inside the cylindrical shell, which enable stand to upspring after it is free. A Safety positioning device is mounted upper the cylindrical shell.
- The positioning device can prevent the hook body from rotating when the empty elevator is hoisted. The positioning device will not work when the drill string is hanging.
- The hook body can rotate freely. Hook’s braking device can lock the hook body at any eight even distributed position.
- Hook’s safety pin body is locked by locking mechanism too.
- A hydraulic cushion device is mounted inside the rotary hook to protect the drill pipe joint during brake-out.
- A reliable safety device is mounted at the mouth of hook. The nondestructive inspection (NDI) was conducted against the main loaded component of hook.