A device that is used to reduce the traction force and change the direction of the traction force of the rope of a lifting mechanism working in conjunction with a block. Mounting blocks are used for various jobs that require lifting and transport operations.
A pulley block is a load-lifting device that consists of several pulley blocks assembled into a fixed and movable cage, sequentially encircled by a chain or rope. This device is used to reduce the pulling force of the lifting mechanism and gain strength. As a rule, a chain hoist is used as part of a more complex lifting mechanism, but can also be used independently for lifting and lowering small loads. Small pulleys are often used to tension overhead communication cables, power cables and support cables. The design of these devices consists of the following elements: housing; one or more mounting rollers, cargo fastening, hook.
