With the continuous growth of the world economy demand for coal energy, the development of coal mining machinery is very fast. As the main equipment of underground comprehensive mechanized coal mining, the high-strength ring chain of the transmission component on the scraper conveyor has also been developed rapidly. In a sense, the development of scraper conveyor depends on the development of high-strength ring chain. High strength ring chain is the key part of coal scraper conveyor, its quality and performance will directly affect the working efficiency of equipment and coal output.

High strength ring chain is a kind of rigging connected by metal chain link. According to its form, there are mainly two kinds of welding and assembly. According to its structure, one or more of them are made of high-quality alloy steel.

The outstanding characteristics of high-strength ring chain are wear resistance, high temperature resistance, low ductility and no elongation after stress. The utility model has the advantages of long service life, easy bending, and is suitable for large-scale and frequent use occasions. Flexible multi limbs and multiple combinations can improve work efficiency and reduce cost, and can also be applied to all kinds of scraper conveyor, planer, drum shearer and other mechanical traction in coal mine.