Long hours of work will make our bodies tired. This is a command issued by our bodies, telling us that we need to rest. If we continue to work, it will only bring trauma to our bodies. In fact, it's not just us that get tired. If we use chain block frequently for a long time, it will also get tired. This kind of fatigue is often called "metal fatigue".

Metal fatigue is very common in our life. For example, if we bend a steel wire many times, it will easily break, or metal products will suddenly break. These belong to metal fatigue, which is actually the damage caused to metal materials by repeated cyclic strain. Most of the mechanical equipment we use in construction are metal products. Take the chain block, a light and small lifting equipment, as an example. It is made of metal from the body to the internal parts. Therefore, long-term and uninterrupted use will also cause metal fatigue, such as hook and chain breakage. Moreover, accidents caused by metal fatigue are often sudden and easy to cause accidents.

Therefore, guanhang suggests that people should avoid frequent use of chain hoists for a long time, avoid being under high load for a long time, and give them enough rest, which is the key to ensure long-term use of chain hoists.