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

 

 

1. Hook consists mainly of the bail, the bail pedestal, cylindrical shell, hook body, hook lever, and spring, etc.
2. 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.
3. 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.
4. The hook body can rotate freely. Hook’s braking device can lock the hook body at any eight even distributed position.
5. Hook’s safety pin body is locked by locking mechanism too.
6. A hydraulic cushion device is mounted inside the rotary hook to protect the drill pipe joint during brake-out.
7. A reliable safety device is mounted at the mouth of hook. The nondestructive inspection (NDI) was conducted against the main loaded component of hook.