What is a chain hoist for?
A chain hoist is a mechanical device used for lifting heavy loads of objects and equipment. It is made with a pulley, which is held together by a closed chain. The closed chain forms a loop, which makes it easy to be pulled by hand. There are several large and small pulleys located throughout a chain hoist.
What is the difference between chain hoist and chain block?
Differences between lever hoist and chain blocks
Lever hoist is operated using one hand by cranking the lever/ handle forward or backwards. Chain blocks are operated using hand chain. Chain blocks gives you the ability to lift very large loads up to 50,000 kg with ease by using mechanical advantage.
Can you use a chain block horizontally?
Chain blocks are designed for lifting loads vertically and should not be used for horizontal or angle hoisting.
How much can a chain hoist lift?
Hand chain hoists come in a variety of capacities ranging from 1,000 lbs. to 100,000 lbs.
What moves the lift chain?
In short, as the sprockets climb their way up the chains, the platform and load are lifted. … Both sprockets are rotated by a common shaft, which in turn is powered either by an electric motor and transmission, or a step motor. The step motor can be used to position the platform or table.
How does a chain hoist brake work?
The brake used is a ratchet disc with a set of single-acting friction plates. It holds up itself on load, and the pawl (17) smeshed with the ratchet disc by force of the spring (16), thus ensuring the brake to work safely. The HS Series Chain Block is a portable lifting device easily operated by hand chain.
Can you back hook a chain block?
Wrapping the main chain and back hooking is sometimes used instead of slings, but this stops the hook swivelling, which means any twists in the chain are not removed. Note: Back hooking is not permitted by the original equipment manufacturers (OEMs) of come- alongs.