The friction plate is an important part of the brake system of the chain block, which is mainly responsible for the brake function of the chain block.

The function of the friction plate is to mesh closely. Injecting metal wire on its surface can make it more wear-resistant and more durable. The bright spot on the friction plate is the injected wear-resistant heat dissipation copper wire.

The friction plate of the chain block and the ratchet wheel parts are tightly occluded to achieve good braking effect. If there are dust, grease and other sundries on the friction plate surface, it will cause its friction coefficient to drop, the degree of engagement between the friction plate and the ratchet wheel to drop, reduce the safety of the brake system, cause brake failure, and cause the danger of heavy objects falling.