When the round chain hoist lifts the weight upwards, it is necessary to shake the manual chain clockwise and the hand wheel to rotate. When descending, the chain is pulled counterclockwise, the brake seat is separated from the brake pad, and the ratchet is stationary under the action of the pawl. The long five-toothed shaft drives the lifting sprocket to run in the opposite direction, thus smoothly lowering the weight. The chain hoist generally adopts a ratchet friction plate type one-way brake, which can brake itself under load, and the pawl meshes with the ratchet under the action of the spring, so that the brake works safely.
The round chain hoist has the advantages of safety, reliability, simple maintenance and high mechanical efficiency. Its bracelet has small pulling force, light weight and easy to carry, beautiful appearance, small size and durability. It is suitable for factories, mines, construction sites, docks, Docks, warehouses, etc. are used to install machines and lift cargo, especially for open-air and power-free operations.
The round chain hoist is made of alloy steel material. The chain adopts 800Mpa high-strength lifting chain, the material is generally 20M2, medium frequency quenching heat treatment, low wear and anti-corrosion chain; high strength hook, the material is generally alloy steel, calcined The hook design ensures a slow lift to prevent overload and meets European CE safety standards.