Factors affecting the quality of lifting chain

Lifting  hoist equipment  as an important accessory, chain hoist mass relation to the overall usage of the following lifting chain to introduce you to influence what factors?
1, lifting chain is divided into 80, 100, etc., the higher the level, the chain is relatively good quality
2, the same series of chain products, components and the materials according to the chain, the chain and the hinge attachment structure is divided varieties.
3, the chain selection of alloy steel, hardness, durability, safety coefficient is high, cast iron alloy is relatively poor quality.
4, lifting chain welding standards, purchase, pay attention to whether it is hand-welded chain, if the manual welding,load chain resistance to pressure the chain can not reach higher standards.
5, chain and monocyclic permanent elongation shall not exceed 5% of the original length
6, hanging chain permissible wear value must not exceed ring chain bar diameter or thickness of 10% of the aids.
7, the same species, according to the chain pitch, Rows,hoist and trolley ultimate tensile load chain width and the different divisions specifications.
Lifting chain in the field of lifting machinery is widely used as an accessory, I hope this article can help buyers identify the quality chain.