Design Requirements For Crane Hooks

For lifting equipment, strict inspection should be carried out on the direct load-bearing components - crane hooks, as well as wire ropes, pulley systems, crane wheels, etc. Today, we will share the design requirements for hooks.
There are multiple types of hooks, which can be divided into single hooks and double hooks in shape, and can be purchased in pieces or forged hooks in manufacturing methods. Each type has a different scope of application and needs to be selected according to the specific lifting machinery and the weight of the lifted object. For manufacturers, qualified hooks are marked in locations that are not easily worn, including rated weight, production code and date, manufacturer, and an important factor, which is the original opening degree of the hook. And a certificate of conformity must be issued.
In terms of design, consideration should be given to the future usage environment, meeting fatigue resistance, plasticity, and strength. It is necessary to ensure that surface and internal defects are not sufficient to affect usability. When purchasing materials used, technical specifications must be provided to ensure that the performance meets the standards.
Generally speaking, it is difficult to avoid the occurrence of large and small defects in castings, so the use of casting production should be avoided as much as possible. Hooks are vulnerable parts, and when they are found to be scrapped during inspection, they should be replaced immediately. It is strictly prohibited to perform welding repairs in order to save costs, and private welding manufacturing is also not allowed to prevent production accidents.