Specifications

hook and block:
1.standard: API Spec. 8A.
2.Type:DG90,DG135,DG170,DG225,DG315,DG450,DG585

hook and block

 

1. The hook conforms to API Spec. 8A.
2. The hook is equipped with a locking device to lock the rotary position.
3. The hook is with self-lock fuction.
4. The hook is with double-class spring to satify drilling requirements.
5. Type:DG90,DG135,DG170,DG225,DG315,DG450,DG585

  

Model	DG90	DG135	DG170	DG225	DG315	DG450	DG585
Max. hook load KN	900	1350	1700	2250	3150	4500	5850
Major-hook opening mm(in)	155(6 1/16)	165(60 1/2)	180(7)	190(7 1/2)	220(8 5/8)	220(8 5/8)	238(9 3/8)
Dia. of major-hook mm(in)	116(4 1/2)	140(5 1/2)	150(6)	160(6 1/4)	180(7)	180(7)	180(7)
Spring travel mm(in)	180(7)	180(7)	180(7)	180(7)	200(8)	200(8)	200(8)

 

   

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