Notes for chain sling selection
Chain sling selection is usually configured in accordance with the chain specifications, so chain sling selection needs to follow the following steps:
Calculate load to determine chain specification
According to the load calculation method of multi-limb spreader and the use of load coefficient, the working load of chain sling in use is converted into the working load of single chain. Then select the suitable chain according to the standard load table of the chain.
Determine the style of the main ring
First, according to the working mode of the chain sling, determine the number of the chain to determine whether the main ring is a single limb, two limbs or 3/4 limbs.
Secondly, according to the size of the crane hook to determine the main ring is the main ring type connected with the standard crane hook, small hoist hook or large crane hook.
A -- The diameter of the main ring
B -- The inner width of the main ring is related to the width of the crane hook
C -- The inner height of the main ring is related to the thickness of the crane hook
T -- the working length of the main ring
Determine the rest of the chain accessories According to the chain sling working mode, determine whether the chain sling needs to be shortened, whether the hanger, how the tail connection accessories need to be connected with the hanger, etc.
Tail connection part:
Determine the length of the chain:
According to the selected main ring, the working size of each accessory, the chain length is calculated comprehensively. Then, according to the assembly requirements of chain spreader, determine whether the chain is odd or even.
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