We direct query in baidu encyclopedia rigging and spreader is not difficult to understand, the meaning of sling belongs to the category of the hoisting machinery and rigging spreader and suspended objects belong to between moving parts, that is what we call the sling is made up of spreader and the perfect unity of rigging, so how can the two should be together?
First of all, in the collocation of model, the spreader and rigging must be guaranteed to give the correct collocation scheme according to their different uses. For example, when to use chain spreader, when to use synthetic fiber sling, etc., all need to choose different collocation schemes according to different situations.
Another point is in the hand distribution, because of the common rigging they can only withstand tensile stress, but they have an advantage is that they can change the direction of the force, so that in the selection can be targeted for the combination.