API 8A Standard Traveling Hook Block
Specifications
API 8A standard crane hook blockJoining traveling block and hook together
high strength alloy steels
nondestructive testing
API 8A standard traveling hook block
Specification
Hook block complies with API 8A standard. Joining traveling block and hook together reduceds overall length and can help satisfying the requirements of top drive operation. The hook block is equipped with the reliable safety devices on the mian hook.
The main parts are made of high strength alloy steels and are subjected to nondestructive testing. The pulley has been intermediate frequency quenched, which can improve the hardness of the surface the wearness, and the service life.
Technical Specifications
Model |
YG135 |
YG170 |
YG225 |
YG450 |
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Max.hook load:kN |
1350 |
1700 |
2250 |
4500 |
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O.D.of sheaves:mm(in) |
760(30) |
915(36) |
1120(44) |
1524(60) |
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Diameter of wireline:mm(in) |
29(1 1/8) |
29(1 1/8) |
32(1 1/4) |
38(1 1/2) |
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Major-hook opening:mm |
150 |
180 |
190 |
220 |
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Spring travel:mm |
170 |
140 |
180 |
180 |
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