Slings used for loading and unloading operations in industry, construction and transport. With the help of slings move most massive and bulky cargo (building materials and construction equipment, timber, rolled steel, container and other), using the crane hook. Slings provide not only grip the cargo, its stable position in space, even load distribution between the elements. Slings general – are universal. Currently in use, slings the following: trucks, rope (made by methods crimp aluminum sleeves or ), textiles (belt and kruglopryadnye), chain, combined (chain, rope, chain, textile, rope, textiles).
To perform certain types of work carried out special kinds of slings on individual drawings and sketches. Determinant in the choice of slings are load mass, its nature, size, shape, mode of using the sling, the method of lifting (slinging), and the working environment – all this is the workload on the sling. Most prevalent in Russia and the cis countries are rope slings: it not only has traditionally formed a working method, but also meets the climatic conditions and specific transport, construction and manufacturing. Feature of the steel wire rope slings – is that they are durable, reliable and sufficiently robust to sudden dynamic loading (metal and the texture of the rope sling smooth, absorb sudden loads). That As for the other performance of the cable sling, then wear a sling is gradual: thus, his condition is easy to monitor and promptly discard. Rope slings are less durable than such chain. Sudden breakage of the sling is practically excluded. Replace them easily, and also cheaper than a chain or mats. Among their shortcomings can be attributed considerable weight, less comfort in work (Restrictions on use in a hostile environment, unsafe for slingers (torn wires of outer strands can get hurt), as well as for goods – can be damaged by the surface).