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The Chain Sling Meets The Lifting Design Standard

Aug 01, 2017

Chain sling mainly by the main ring, connecting shackles, chain, metal end pieces. Chain sets of spreaders and lifting slips like lifting plate has the function of lifting heavy objects.

The advantage of the chain sling is that the total length can be made according to the user's needs, Chain Sling and the different hooks can be selected according to the different objects to be suspended.

Chain sling with high-strength alloy steel forging chain, in line with the lifting standard design, can be assured use.

Chain sling is a metal chain connected to the rigging, in accordance with its form of the main welding and assembly of two, according to its structure and only a single only, Chain Sling the use of high-quality alloy steel. Highlighting the characteristics of wear-resistant, high temperature, ductility is low, after the force will not stretch and so on. Its long life, easy to bend, suitable for large-scale, frequent use of the occasion. Flexible multi-limb, a variety of combinations can improve work efficiency, reduce costs and so on

Chain sling use precautions 1 is not prohibited overweight work; 2 chain in the course of the use of knot or twist is not allowed; 3 chain sling can use a special regulator to adjust the length; 4 can not use the hook tip load; The normal working temperature -40 ℃ to +200 ℃, 6 from +200 ℃ to enhance the capacity to 90%, 7 300% began to enhance the capacity to 75%, 8 400 ℃ after the proposed use; Third, Chain Sling the high-strength chain sling scrap Condition 1 chain ring break, do not self-welding continue to use; 2 chain ring, rings, middle or connector deformation; 3 chain average diameter reduction of 10% 4 chain any position more than 3% of the stretch; More than 10%. Fourth, the high-strength chain sling lifting Notes 1. To develop a good hoisting habits, in the lifting of the work before the plan how to hang, lifting and unloading. 2. Prepare: Determine the weight of the object and its center of gravity, Chain Sling carefully read the attached documents, mark the lifting point and weight data. Only to determine the center of gravity before the hook can be linked in the position! 3. Crane operator to be told the weight of the hanging material. 4. Crane hooks should be hanging vertically above the center of gravity of the hanging object. 5. Lifting lifting objects should not only damage the lifting objects, but also to prevent damage to the rigging itself. In order to avoid rotation or drop, Chain Sling the following conditions shall be observed: a) One leg with the rope, the lifting point should be located vertically above the center of gravity of the lifting object. B) If the legs are rigging, the hanging point should be located on both sides of the lifting object, lifting point above the center of gravity. C) If it is three legs and four legs rigging, hanging point should be evenly located in the lifting point of the center of gravity, and hanging objects in the center of gravity above. Chain Sling Must pay attention to the lifting angle β (between the vertical and hanging legs): the greater the lifting angle, the smaller the lifting capacity. More than 60 degrees of lifting angle is absolutely not allowed! Fifth, how to choose the chain sling 1 chain sling to go through the precise choice, so as to be suitable for the type of goods carried, length, fastening method, and will not slip, The selection may lead to the occurrence of chain breaks! 2 Lifting chain slings are not suitable for surfaces with flat or smooth surfaces or temperatures above -40 ° C to + 400 ° C (more than + 200 ° C rated load will be reduced). 3 Lifting chain Never allow lifting of objects beyond its rated load! 4 First use of chain slings The mark and dimensions are checked before the first application of the selected lifting chain. Do not use chain sling with defect or missing mark! Safety: 4x safety factor. Surface treatment: polishing, black, galvanized, paint and so on. Tensile end: (1) with eyebrow hook (with tongue), widely used in a variety of lifting purposes. (2) with safety self-locking hook to ensure the safety of the project. (3) with a large opening hook, suitable for casting works or large parts. (4) with claw safety hook (with tongue), wide-type function hook.