According to different uses and functions, iron chain can be divided into four types: transmission chain, conveying chain, traction chain and special special chain.
1 transmission chain, mainly used to transfer power chain.
2 conveying chain, mainly used for conveying materials.
3 traction chain, mainly used for pulling and lifting chain.
4 special chain, mainly used in the chain special mechanical device, with special chain function and structure.

For the structure of iron chain bar/chain block, in the same kind of products, the chain product series is divided according to the basic structure of the chain, that is, according to the shape of components, the parts and parts meshed with the chain, and the size proportion between parts. There are many kinds of chains, but their basic structure is only the following, and the others are the deformation of these kinds. We can see from the above chain structure that most of the chain is composed of chain plate, chain pin, shaft sleeve and other parts. For other types of iron chain, only the chain plate is modified according to different requirements. Some are equipped with scraper, some are equipped with guide bearing, and some are installed with roller on the chain plate. These are all refitted for different application occasions.