Lifting Chain Can Not Be Changed At Will

The use of lifting chains on construction sites may often be informal, resulting in a lot of chain failures. When using the lifting chain, the user needs to do "lifting chain does not lift, lifting chain does not lift", so as to ensure the safety of the operation. Why is that?
When the lifting chain is used to lift heavy objects, it only needs to fight the gravity of heavy objects in the vertical direction, and the chain body is not in contact with other objects, and will not be worn; When the lifting chain is used to lift heavy objects, the gravity of the heavy objects is borne by the whole chain body, and the chain and the edges of the objects to be lifted rub against each other, and are prone to wear. If the chain often used for lifting and the chain often used for lifting goods are exchanged, the position of the chain force will change, the direction of the force will also change, and even the chain of lifting goods may be worn, and it is likely to break when lifting heavy objects.
When the lifting chain is used at the site, the purpose should be clear, the chain used to lift heavy objects can not be used to lift goods, and the chain used to lift goods can not be reversed to lift heavy objects, so that the service life of the lifting chain is longer and the probability of accidents is smaller.