Prevent Chain Breakage of Stage Hoists

Overloading is one of the main direct causes of chain breakage in stage hoists. Therefore, during use, it is imperative to strictly comply with the rated lifting capacity requirements and prohibit any form of overloading operation. Before hoisting, the operator must accurately calculate the weight of the load to be lifted to ensure it does not exceed the hoist's rated carrying capacity. If the weight of the load is uncertain, a weighing device should be used to confirm it before proceeding with the operation. At the same time, the use of the hoist in non-vertical hoisting conditions such as inclined hoisting and horizontal hoisting should be avoided. Such working conditions will cause the chain to bear lateral tension, greatly reducing its carrying capacity, which is equivalent to indirect overloading. Overloading will make the tension borne by the chain far exceed its design limit, which may cause the chain to stretch, deform or even break in a short time, leading to serious safety accidents. Therefore, such illegal and risky operations must be firmly prohibited.