How to choose an electric hoist lifting chain

 Crane lifting chain is the most widely used one of  Hoist equipment   electric chain hoists used in many industries, the chain hoist is directly related to the quality of life and safety, the following shows you how to use  wire rope hoist  lifting chain For your reference:
One, first check the appearance of the chain:
1 inner / outer links are deformed, cracks, corrosion embroidered
2 pin is deformed or turn, embroidered eclipse
3 roller whether cracks, damage. Excessive wear
4 connector is loose deformation
5 there is no abnormal noise when running or abnormal vibration, hoist chain lubrication in good condition
Two, followed by a long  load chain  of measurement accuracy:
1 after cleaning before measurement chain
(2) will be measured on a chain around the two sprockets, chain up and down both sides of the test should be supported
3 before the measurement chain should be applied in one third of the minimum ultimate tensile load state visit 1min
4 measurements, impose requirements on the chain measuring load, so up and down both sides of the chain tensioner. Chain on sprocket teeth should ensure proper fit
5 Measuring two sprocket center distance
Three, the last measurement chain elongation:
1 for the removal of the entire chain of clearance, to exert some degree of chain pulling tension measured
(2) measurement, in order to minimize errors in the 6-10 section (link) where measurements
3 for measuring the number of roller sections between the inner dimensions L1 and L2 outward, in order to determine the size L = (L1 + L2) / 2
4 obtained hoist chain elongation length, this value chain elongation and front entry in contrast to the use of threshold values.
Chain elongation = judgment dimension - the reference length / reference length * 100%
Reference length = chain pitch * Session