The HS-A Series Chain Block is a portable lifting device easily operated by hand. It is suitable for use in factories, mines, farms, construction sites, agricultural production, and in wharfs, docks and storages for fixing machines, lifting cargos, and loading and unloading goods. It is especially advantageous for lifting work in the open air and places where no power supply is available.

The chain block can be attached to a trolley of any type as a traveling chain block. It is suitable to monorail overhead conveying system, handtravelling crane and jib crane.