What are the requirements for the use of insulated hooks? Let you know five points
Hooks are an important part of lifting machinery, divided into forged hooks and plate hooks. The insulated hooks of cranes are not allowed to be cast and welded. Newly put into use must have technical confirmation documents such as quality qualification, otherwise technical inspections should be conducted and performance can only be used after confirming that performance is qualified. Let us understand its technical requirements in detail below.
1. Use the insulated hook front waist to check the new hook set used in the hoisting. The manufacturer's technical proof documents should be obtained to measure the opening degree of the new hook set and comply with the regulations.
2. Before use, check the rated lifting weight marked on the hook, and it must not be less than the actual lifting weight.
3. When inspecting insulating hooks, low-carbon steel or low-carbon alloy steel should be made of low-carbon steel. The load test and manual drive lifting mechanism use hooks, with a rated load of 1.5 times.
4. The hook should reliably support twice the inspection load without falling off, and there should be an inspection device to prevent accidental decoupling of the lifting weights.
5. After removing the inspection load, the opening degree shall not exceed 0.25% of the original opening degree, and there shall be no obvious defects or deformation. During surface inspection, the surface of the hook should be smooth without peeling, acute angles, burrs, cracks, etc.; marking and document inspection, including certificates, rated lifting weight, factory name, inspection marks, production number, etc.
The above are the requirements for the use of insulating hooks, I hope it will be helpful to you.
Hooks are an important part of lifting machinery, divided into forged hooks and plate hooks. The insulated hooks of cranes are not allowed to be cast and welded. Newly put into use must have technical confirmation documents such as quality qualification, otherwise technical inspections should be conducted and performance can only be used after confirming that performance is qualified. Let us understand its technical requirements in detail below.
1. Use the insulated hook front waist to check the new hook set used in the hoisting. The manufacturer's technical proof documents should be obtained to measure the opening degree of the new hook set and comply with the regulations.
2. Before use, check the rated lifting weight marked on the hook, and it must not be less than the actual lifting weight.
3. When inspecting insulating hooks, low-carbon steel or low-carbon alloy steel should be made of low-carbon steel. The load test and manual drive lifting mechanism use hooks, with a rated load of 1.5 times.
4. The hook should reliably support twice the inspection load without falling off, and there should be an inspection device to prevent accidental decoupling of the lifting weights.
5. After removing the inspection load, the opening degree shall not exceed 0.25% of the original opening degree, and there shall be no obvious defects or deformation. During surface inspection, the surface of the hook should be smooth without peeling, acute angles, burrs, cracks, etc.; marking and document inspection, including certificates, rated lifting weight, factory name, inspection marks, production number, etc.
The above are the requirements for the use of insulating hooks, I hope it will be helpful to you.
Hooks are an important part of lifting machinery, divided into forged hooks and plate hooks. The insulated hooks of cranes are not allowed to be cast and welded. Newly put into use must have technical confirmation documents such as quality qualification, otherwise technical inspections should be conducted and performance can only be used after confirming that performance is qualified. Let us understand its technical requirements in detail below.
1. Use the insulated hook front waist to check the new hook set used in the hoisting. The manufacturer's technical proof documents should be obtained to measure the opening degree of the new hook set and comply with the regulations.
2. Before use, check the rated lifting weight marked on the hook, and it must not be less than the actual lifting weight.
3. When inspecting insulating hooks, low-carbon steel or low-carbon alloy steel should be made of low-carbon steel. The load test and manual drive lifting mechanism use hooks, with a rated load of 1.5 times.
4. The hook should reliably support twice the inspection load without falling off, and there should be an inspection device to prevent accidental decoupling of the lifting weights.
5. After removing the inspection load, the opening degree shall not exceed 0.25% of the original opening degree, and there shall be no obvious defects or deformation. During surface inspection, the surface of the hook should be smooth without peeling, acute angles, burrs, cracks, etc.; marking and document inspection, including certificates, rated lifting weight, factory name, inspection marks, production number, etc.
The above are the requirements for the use of insulating hooks, I hope it will be helpful to you.
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