Pulley block is a tool widely used in lifting and transporting operations. It is used with the wire rope and equipped with a winch for lifting and transporting heavy objects. A single pulley can only change the direction or the force， composited pulley blocks with wire ropes can not only change the direction of the force, but also can lift the heavy objects.
Classification of Pulley Blocks
First, according to the number of sheaves, they're divided into single sheave, double sheave, triple sheave, multiple sheave.
Second, according to the link, pulley blocks are divided into hook type (light weight), lifting ring type (large lifting weight), chain ring type (small), beam type (large).
Third, by material, wood, steel.
Fourth, according to the purpose, fixed pulley, moving pulley, guide pulley, balance pulley.
Fixed pulley: Bearing the weight, change the direction,but not change the force.
Moving pulley: change the speed, labor saving, but not change the direction.
Guided pulley: similar to fixed pulleys, no effort, no shifting, only redirection.
Balance pulleys: make sure that each pulley is evenly stressed to keep the hanging objects stable.
The pulley block is made up of a fixed pulley and a moving pulley with a steel wire rope. During the operation, the position of the fixed pulley block does not change, but the pulley rotates, and the movable pulley moves with the heavy object, which saves labor. The more the pulleys in the pulley block, the more labor-saving and the slower the weight moves.
Crealifting has deep cooperation with many pulley block manufacturers, mainly exporting pulley blocks in Russia, Myanmar, Vietnam, Malaysia and other countries. If you have any questions or requirements for lifting pulley blocks, please feel free to contact us.