How do you measure chain block capacity?
The thumb rule you should follow here is this – measure the height of the lift. Make sure that the load chain length is equal to the lifting height and hand chain is almost two feet less than the lift length. For example, if the length of the lift chain block is 20 feet, then that of the hand chain should be 18 feet.
Is a chain block a lifting accessory?
What is a Chain Block? Often referred to as a Chain Hoist, Chain Block, Block & Tackle, and Manual Hoists, a Chain Block is lifting equipment for heavy loads up to 5000 KG. By using two wheels and a chain, when the chains are wound around the wheels and pulled, it will lift the load that is attached.
Can you back hook a chain block?
Safe Use of Blocks o Position the hook directly over the centre of gravity so that the line of pull is vertical. o Do not use the chain/wire rope to sling the load, ie do not wrap it round the load, back hook or choke hitch. o Do not lift on the point of the hook or overcrowd the hook with fittings.
What are chain blocks?
What are Chain Blocks? The Chain Block is a mechanism used to raise or lower heavy loads with relative ease. The internal gears of the Chain Block wind the chains around, lifting the object that is attached to the end or hook. This means that very little force is required to lift large, heavy loads of up to 30,000 kg.
What is the difference between a chain hoist and a chain fall?
A manual chain hoist which looks like a metal block is called a chain block. Chain fall’s are also referred to as Chain hoists. You will most likely hear all three of these terms in the lifting industry.
How do you secure a chain block?
Secure the Chain Fall or Chain Hoist to a structure that can withstand the load. Position the hook directly above the centre of gravity. Use the chain pulley block only for vertical lifting. Use appropriate personal protective equipment during lifting operation.
How do chain blocks work?
A Chain Block contains a lifting chain, a hand chain and a grabbing hook. Then when the hand chain is pulled, the chain tightens its grip on the wheel and forms a loop inside the mechanism causing a tension which lifts the load from the ground.
What is lever block?
Lever hoist, also known as lever block is a piece of high quality lifting equipment that is being used to lift and move loads across the warehouse facility. They are portable devices which are very useful in tensioning. They can be used to lift loads in different positions including vertical and horizontal lifting.
What should you never do when using hand chain blocks?
When using hand chain blocks never: Expose chain blocks to chemicals, particularly acids, without consulting the supplier. Replace the load chain with a longer one without consulting the supplier. Use undue effort to force the block to operate.
What are the safety practices in slinging a load chain?
Adopt safe slinging practices and follow the instructions for the safe use of the equipment used. Expose chain blocks to chemicals, particularly acids, without consulting the supplier. Replace the load chain with a longer one without consulting the supplier. Use undue effort to force the block to operate.
How do you fix a broken load chain block?
Replace the load chain with a longer one without consulting the supplier. Use undue effort to force the block to operate. Throw, drop or drag a chain block. Allow oil or grease to come into contact with the brake. Expose a chain block directly to the elements, water spray, steam etc without consulting the supplier.
What are chain blocks used for?
Chain blocks are used for lifting heavy loads vertically and while speed isn’t a key requirement, precision is. They can be used safely and easily by just one person, like if a mechanic needs to carefully lower an engine into a vehicle, or if a car needs to be pulled out from a dangerous spot.