There are significant differences in specifications and materials between the hand zipper strip and the lifting chain of a chain hoist. This difference is mainly reflected in the weaker strength of the hand zipper strip, while the strength of the lifting chain is super strong. So, what is the real reason for this design?

The reason is actually very simple, because the forces on the two are completely different. The chain hoist increases torque through gear transmission, that is, it obtains greater traction through smaller power output. So hand zip ties bear much less force, while lifting chains directly carry the weight of the heavy object itself.

According to the working principle of the chain hoist, we can clearly see that the load on the chain of the chain hoist is small during the entire lifting operation. This situation is caused by gear transmission, in order to make it easier for the person pulling the chain of the chain hoist.

In order to maintain the power transmission of the chain hoist and the load capacity of the chain well, although the lifting chain will choose larger and stronger metal specifications.