A crane or hoist is only useful if you have a way to lift the equipment or materials you need to move. In order to do that, you’ll need a rigging sling. The rigging sling supports the materials and ensures they arrive at their destination in good condition.
These slings may be made of several types of materials, including wires, chains, or other synthetic materials. They are looped around the load and used to hold it in place while lifting.
Wire rope is used most often. The wire cables are very strong, thanks to multiple strands of metal wire being twisted together. The tensile strength is good and the rope is very flexible. It also holds up to wear and tear over time better than other materials. However, when it does break down, it is not reparable.
Chain slings tend to use alloys that incorporate steel. They are quite flexible due to the chain links, but they are also resistant to extreme temperatures and can be repaired by simply replacing a broken link. The downside of using chains is that they are rather heavy and pricey. They’re also easily crushed.
Synthetic slings use nylon or polyester to create a woven fabric that is used to lift more delicate items. The fabric will not scratch surfaces but is still relatively strong, as well as quite lightweight. It’s usually difficult to break them simply with weight, but the synthetic material may be easily cut or torn. It may also suffer damage from sun and heat exposure.
You need to know which type of rigging sling to use in order to avoid damage to the equipment you are hoisting. The sling may be either attached to the object that needs to be moved, or it can be wrapped around it.
There are two types of attachment slings and two types of wrapped ones.
Vertical: This is a simple hitch that involves a single line that goes from the crane hook to the connection on the object in question. A single length of chain, for example, can be used this way.
Bridle: To use this method, you need to have two attachment points on the equipment to be lifted. The chain, wire, or whatever type of sling you’re using, will be attached to these two points and the other ends will attach to the crane, in an inverted V.
Choker: The choker sling requires a loop of rope or chain around the object, which then attaches to itself, just above the object to be moved.
Basket: For this sling, the chain or rope wraps around the object as with the choker hold, but the ends both connect to the crane hook. This is more what people think of when they hear the word “sling.” Are you in need of a quality rigging sling? Find the perfect one for your needs here at Atlas Winch Hire & Hoist Services. Take a look at our products online or contact us on 01899 221577 (Scotland) or 01371 859555 (Essex) for more information about how we can help you.