What Is a Manual Chain Hoist/Block?

Manual chain hoist also called chain block, is a kind of hand lifting machinery, with the lifting capacity ranging from 0.5 ton to 100 ton. The chain block is used in factories, mine, building site, dock, shipyard, warehouse, etc.

Manual chain hoist / chain block is one of the most economical material handling equipment with features of hand operation, simple structure, cost-effective, widely application, etc. What’s more, the spark resistant features, such as, stainless steel, bronze hooks, chains, wheels, etc are available to manual chain hoist / chain block. The lifting capacity of manual chain hoist / chain block is 0.5 to 100 ton.

Features of Manual Chain Hoist and Chain Block

• Durable main parts, made of high quality alloy steel.
• 800 Mpa high strength lifting chain, with the features of 20M2 material , intermediate frequency quenching heat treatment, low wear, anti-corrosion, etc.
• High strength hook, with the features of alloy steel material, gesture type of hook, etc.
• Slow lifting is available to avoid overload.
• Confirming with CE safety standards
• Strength and durable in use
• High safety performance.

Advantages of manual chain hoist / chain block

• Safe and durable in use, confirming with the international standards.
• Great toughness, small size, light weight, easy to handle.
• Small pulling load, high strength of machine parts.
• Advanced structure design and good appearance.
• Manual lifting without power supply.

Working principle of manual chain hoist and chain block

To lift good upside, pull the chain clockwise and then sprocket runs, pressing ratchet wheel and brake base as a body to rotate together, long axis rotating teeth gear, short axis and spline hole gear. Thus the lifting sprocket on the spline hole gear will drive the lifting chain to lifting goods stably.

Lifting goods down, anticlockwise pulling the chain, the brake base will separate from the brake pad, ratchet wheel will stop under the influence of the ratchet pawl, five long shaft lifting sprocket driven gear in the opposite direction, then lifting goods stably.
The chain block adopts ratchet friction chip one-way brake, can brake under load conditions, ratchet pawl mesh with the ratchet wheel under the influence of spring, make the brake work safely.

Applications of manual chain hoist/chain block

Manual chain hoist/chain block is usually used to install machines or to handle goods in short distance in applications, such as, factory, mine, building site, docks, shipyard, warehouses, etc.
Manual chain hoist/ chain block is used with favor when handling materials in open air or when the power supply is in short.
Manual chain hoist/chain block also can be applied to lift and transport cars, matched with monorail car, manual Single Girder Overhead Crane and suspension crane.