A lifting operation involves many parts and pieces. Not only will you have a lifting apparatus, such as a crane, and the medium conducting the actual handling of the load, such as a lifting sling, but you may also find various other fittings and gear being used. One such example of this is a shackle, which can be used with lifting slings. We’ve explained how to use lifting slings with shackles below.
What is a shackle?
A shackle is a type of lifting gear that comes as either bow or dee. This refers to the way that it looks. For example, a dee shackle, also written as ‘D’, is shaped just like the letter itself. In essence, they are a type of connector and are used to connect loads and lifting equipment together. Using lifting slings with shackles provides an ideal connection for many types of lifting operations.
They are simple to use, thanks to an easily removable screw pin. Some designs also come with a safety bolt, which is used for operations that require a more permanent fitting.
Why is a lifting sling used with this piece of equipment?
One of the most common ways that shackles are used in conjunction with lifting slings is to create a safe anchor point around a hook. It’s crucial that you don’t simply put the lifting sling over the hook itself, as it could be in danger of slipping off. Instead, the shackle is attached over the hook, and then acts as the anchoring point to which the lifting sling is attached.
There are a few factors that one must consider:
Wire rope sling
If using a wire rope sling, then you must use a shackle that has a greater load capacity and diameter than the wire rope being used, but that is also less than half of the eye length, or less.
For a synthetic lifting sling, you can use a synthetic sling shackle that should either match the size and capacity of the sling. Or, you can use a standard shackle which has a capacity that is greater than both the load and the width of the sling. The diameter must also be large enough to avoid any abrasion damage or cutting, but must also be less than a third of the eye length.
If using in a choker hitch
If using this setup, then the shackle should have a capacity that is greater than the capacity of the single leg sling.
You must take care when placing your sling onto a hook
If placing onto a hook
In this instance, the pin of the shackle should rest on the hook easily, and not be hung up on the ears.
If using as a connector
The size of the shackle should be based on the total weight of the load, and it should fit properly onto the hook. It shouldn’t be at more than a 120-degree angle.
Interested to hear more about using lifting slings with shackles?
If you would like to find out more about how our lifting slings can be used in conjunction with other pieces of lifting gear, then we would be happy to share our knowledge. You can get in contact with us here.