The lifting chain is an indispensable lifting component for chain hoists. Generally, chain hoists use 80-level lifting chains, 20M2 material and the advance carbonizing treatment process. It not only has strong willfulness, but also a strong friction. The surface treatment process of lifting chain is divided into the following types:
1.Polishing treatment
Grinding and polishing make the surface treatment simple. It is to remove the roughness of the surface, makes the surface smoother and the operation more fluently.
2.Blackened treatment
The blackened process is carbonizing treatment, which makes the appearance dark and shiny. The purpose is to increase the strength of the chain and prevent rust. Most chain hoist lifting chains use blackened
3.Galvanized
The galvanized chain is silver-white and looks very beautiful. Its surface has a thick galvanized layer. Its presence can effectively prevent the chain from rusting and corroding. Galvanizing is expensive. Many manufacturers’ galvanized chains are used in exhibition samples.
In addition to the commonly used blackened and galvanized, chain hoist lifting chain also has a variety of processing methods such as dipping, plastic powdered, electroplating, copper plating, chrome plating and so on.