Splicing the ends of a piece of wire rope makes an grommet slings, endless grommet slings. It is simple to handle and can be used in several different ways. The endless grommet slings, braided belt slings are most commonly used as a choker hitch. When the endless sling is used as a choker, user passes it around the object forming a loop on top of the object. The other end is passed through this loop, pulled tight and attached to the cargo hook. User spread apart the two parts of the sling on the bottom of the object.
Double part endless slings are available in both ferule spliced and hand spliced.
|Max. Safe working load in kg double part wire rope slings|
|Min. Rope size (MM)||Vertical lift (KG)||Basket lift (KG)||Choker lift (KG)|
- Use large enough hooks and large diameter shackles to avoid crushing and kinking of the sling. If possible use Wide-Body shackles. They increase the D/d ratio and you gain sling strength.
- Small diameter shackles reduce the sling strength and, most likely, that small diameter shackle also has insufficient capacity for that job. Shackle or not, objects to be lifted and all hook up points must at least ensure a D/d Ratio of 5:1.
- Proper D/d ratio for the sling capacity. If the sling is too short you may have to adjust the capacity because of the sling angle. The D/d Ratio is the ratio of the diameter around which the sling is bent divided by the body diameter of the sling.
- A Grommet consists of an endless rope having construction 6/1 construction & is used where high ultimate breaking strength of the rope is required beyond the limits of a single part rope.