Regarding the issue of whether the broken chain of an electric hoist can be repaired by welding, it is generally not recommended to carry out welding repairs. The reasons are as follows:

Safety performance cannot be guaranteed: After welding repair, the strength and toughness of the chain may not be restored to its original state, which may cause the chain to break again during use, leading to safety accidents. As a lifting equipment, the strength and stability of the chain of an electric hoist directly affect the safety and reliability of the operation.

Impact on normal use of equipment: Even if the welded repaired chain appears normal in a short period of time, it may still break or experience other malfunctions due to possible defects and stress concentration at the welding points, which can affect the normal use of the equipment over a long period of time.

Not meeting regulatory requirements: In the safety regulations and standards for lifting equipment, it is usually required to replace key components such as chains with new ones instead of repairing them. This is because the repaired components may not meet the original safety requirements.

Therefore, when the chain of the electric hoist breaks, the best solution is to replace it with a new chain. When replacing the chain, the following points should be noted:

Choose a chain of the same material and model as the original chain to ensure its performance and safety match the original chain.

During the replacement process, it is necessary to strictly follow the operation manual and maintenance requirements of the equipment to ensure the correct installation and fastening of the chain.

After replacement, a comprehensive inspection of the equipment should be conducted to ensure the normal operation and safety of the chain and other components.

In addition, to prevent the breakage of the electric hoist chain, the following measures can be taken:

Regularly inspect the wear and damage of the chain, and replace severely worn chains in a timely manner.

Ensure that the operating environment of the electric hoist meets the requirements and avoid using it in harsh environments such as humidity and corrosion.

Proper use and maintenance of electric hoists to avoid overloading and improper operation.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment