Block chain

Block chain A chain block is frequently called a manual chain hoist, chain hoist or block and tackle.

The chain block is a piece of lifting equipment designed for lifting heavy loads that are too bulky or heavy to lift by hand without causing a danger to the rigger. Featuring two hooks; one for suspending the hoist from a suitable trolley or clamp and the other is the lifting hook for hoisting and suspending loads up to the maximum capacity labelled on the chain block gear cover. block chain software The cover of the hoist is required to display the safe working load of the unit along with the serial number and brand. This is for safety purposes and is required by lifting laws in most countries.

Forged and heat treated hooks prevent the danger of the hook snapping in the case of overload; instead they just bend slowly and gradually over time.

Highly precisely engineered components and gears turn the chain guide as the hand chain is pulled.

When the chain guide turns the load chain passes through the chain block, pulling the load up or lowering it down with the assistance of the manual brake.

Swivel hooks are used on the top of the block and the load chain to enable the hoist to swivel should the load be in an awkward position. When the user pulls of the hand chain the load chain travels through the guide and the load is lifted. Pulling in the opposite direction on the hand chain slowly lowers the load using the block brake fitted as standard.

A slack chain bag can be fitted to contain the slack load chain that would usually fall down by the side of the load as it is hoisted up, however sometimes this can be unsightly or the load may be fragile and this can protect it from damage.

All chain block products used for lifting or pulling should be proof load tested and supplied with a certificate of conformity or certificate of testing. We always recommend using a chain block with a suitable tested beam complete with an appropriate method of suspension such as a beam travel trolley or a beam clamp. blockchain A beam trolley is a device used for suspending a chain block and allowing it to travel horizontally along the beam. A beam clamp is a static clamp used for suspending the chain block from a beam.

This does not allow the hoist to travel horizontally along the beam. http://www.blockchainsoftware.com.au/