Types of Lifting Slings
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The types include: chain slings, round slings, web slings, wire rope slings, disposable one way slings and fibre rope slings.
Chain slings can be very versatile and available in different link sizes, lengths and lifting capacities; they can be used in different combinations to make up 2, 3 or 4 leg chain slings and can be fitted with a huge variety of end fittings / anchor points. Chain will need protecting around sharp corners by the use of appropriate packing, to prevent kinks etc. Chain slings can also be utilised in different types of hitches to suit the load.
Round slings are soft, and so will not damage delicate items. They consist of a continuous fibre inner core protected by a continuous, tubular sleeve.
Flat web slings are usually made from heavy duty polyester , though can be made from nylon, however polyester possesses less stretch than the nylon variety and are resistant to some acidic substances, where as nylon is more resistant to alkali’s. Web slings are soft and flexible, absorb shock loads well, can have a wide load bearing area and are not affected by oil and grease. Extra protective sleeves can be added to further protect high wear areas. Web slings can be used for lifting most object, and they are very easy to inspect, any signs of wear, cuts or fraying, etc, are easy to spot, and should be replaced if observed.
Disposable one way slings are commonly used to lift and load an object onto a vehicle and remain in situ until they are off loaded at their destination, they are then disposed of. They can be made with either soft eyes or endless, in almost any length.
Fibre rope slings are less commonly used, especially for very heavy and frequent lifting purposes. They can be produced from natural or manmade rope and can be spliced with a variety of end fittings to suit the application.
Wire rope slings are strong, and come in a variety of constructions which have different properties, so care should be taken to choose the correct type, depending on the application it will be used for. Wire rope slings are available in single or multiple leg versions, much like a chain sling. A plus side to using a wire rope sling is that they have many wires/strands that absorb the weight of the load, therefore if 1 wire breaks the rest will often still hold the load, if a chain link breaks, the whole load falls.
When choosing a lifting sling you need to consider many things, such as type of load, weight, size, frequency of use, type or lift and movement required, consult a lifting specialist if you are unsure, they will advise you accordingly.