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63T Crane Rotary Hook Blocks

63T Crane Rotary Hook Blocks

1. The 63T crane rotary hook blocks for the human-powered hoisting mechanism is tested with 1.5 times the rated load as the test load. 2. The 63T crane rotary hook blocks for the power-driven hoisting mechanism is tested with 2 times the rated load as the test load. 3. After the 63T crane rotary......
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1. The 63T crane rotary hook blocks for the human-powered hoisting mechanism is tested with 1.5 times the rated load as the test load.

2. The 63T crane rotary hook blocks for the power-driven hoisting mechanism is tested with 2 times the rated load as the test load.

3. After the 63T crane rotary hook blocks is removed from the inspection load, there should be no obvious defects and deformations. The increase of the opening degree should not exceed 0.25% of the original size.

4. For the qualified hook, the mark should be printed in the low stress area of the hook, including the rated lifting weight, the factory or factory name, the inspection mark, the production number, etc.


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