Hook Blocks

According to API and SY/T5527-2001 Main features:

The hook is manly composed of elevator bail, elevator bail seat, barrel, hook body, hook rod and spring etc. In the barrel there are inner and outer springs which can make the pin of standpipe spring up backwards.

On the top of the barrel there is a safety positioning device. When lifting an empty elevator, the positioning device can stop the rotation of the hook body; when lifting a elevator with drill string, the positioning device no longer can stop the rotation of the hook body; the hook body can rotate freely.

The detent device can lock hook body at any one of eight even positions.

And the safety pin body of the hook can also be locked by locking deice.

For protecting DP connector while breaking out, there is a hydraulic buffer device installed in the hook.

A reliable safety device is installed at hook opening.

The main load-bearing parts have been inspected by NDT completely.

Model	YG-60	YG-90	YG-110	YG-125	YG-135	YG-170	YG-225	YG315
Max. Hook load (KN)	600	900	1100	29	1350	1700	2250	3150
OD of the wireline (mm)	22	26	26	4	29	32	32	32
Number of pulley (pcs)	4	4	4	680	4	5	5	6
OD of pulley (mm)	576	576	610	130	760	915	1005	1120
OD of hook mouth (mm)	100	105	130	80	140	140	140	180
OD of ring mouth (mm)	75	80	80	2530	114	114	120	156
Length (mm)	2280	24140	2400	620	2920	3200	3380	4050
Width (mm)	524	520	554	720	620	750	800	1040
Height (mm)	600	630	700	2600	830	985	1075	1210
Weight (kgs)	900	1200	2300		3050	4300	5200	9600

Hook Blocks