Chain hoist is a mechanism used to lift and lower heavy loads using a chain. We must know the weight of the objects that will be lifted. Balancing between the lifting chain and the objects are necessary to be concerned. Otherwise its failure will cost damage to property or life. There are several types of chain hoists namely Chain Block (also known as hand chain hoist),  Level Hoist  and  Electric Chain Hoist. Thai Koon Chain produces international chains ASTM grade 80, 100 for overhead lifting purposes. There are many sizes of chain hoist available to choose depending on the applications.