Galvanized shackles can be used in industrial applications where moisture isn’t a primary concern, but where the shackles still need to be protected against elements that may cause accelerated corrosion or deterioration to the product. The galvanization process adds a thin layer of zinc oxide to protect against rust and corrosion. Available in round pin, screw pin, bolt type. Can achieve an equivalent WLL as carbon shackles in a smaller product design. Available in round pin, screw pin, bolt type.ĭesign Factor of 5:1. These types of shackles are equipped with an easy opening pin that will not detach and become lost.ĭesign Factor of 6:1. Just what their name implies, they’re designed specifically for pulling sheet piling. They can also be used as a bail for lifting thicker products. These long reach shackles are ideal for use in construction applications where a longer reach is needed to attach to pick points. Prevents kinking and bunching of the sling around the bow.An increase in surface area for a better D/d ratio.The increased radius of the shackle bow provides: When using a shackle with wire rope, the shackle must be equal or greater than the wire rope diameter. Used in conjunction with high capacity synthetic web slings, synthetic roundsling, or wire rope slings. Synthetic sling shackles are available in screw pin or bolt type design. This design allows for 100% of the sling’s WLL to be achieved by preventing the slings from pinching or bunching, which can damage the slings or reduce their rated capacity. On a synthetic sling shackle, the bow of the shackle is widened to increase synthetic web sling or synthetic roundsling efficiency. However, some applications or rigging configurations require a more specialized shackle: When using a screw pin shackle, the screw pin threads shall be fully engaged, tight, and the shoulder should be in contact with the shackle body.Īnchor shackles and chain shackles can be used for a number of different applications and in conjunction with different types of slings, chain, or ropes. Loop annealed iron wire through the hole in the collar of the pin and around the adjacent leg of the shackle-securely twisting both ends together. To avoid the pin from rotating or loosening due to vibration, mousing can be used as a secondary method of securement. Always tighten the pin prior to each lift. However, reduction to the WLL must be accounted for when used in a side-loading situation.īe aware that a live line, such as a sling being used in a choker hitch configuration, can cause the screw pin to be rotated, torqued, or twisted which can cause the pin to unthread itself. Screw pin shackles can be used in applications where side loading is present, and with multi-leg sling assemblies. Screw pin shackles are not recommended for permanent or long-term installations. Screw pin shackles are quick and easy to connect and disconnect so they’re convenient for rigging that is used for “pick and place” applications or when slings and other hardware are often changed out. On a screw pin shackle, a threaded pin is inserted through the ears and tightened down. What Are the Different Types of Shackles? The Parts of a Shackle: We’ll also discuss the different types of material that a shackle can be made from and introduce some shackles designed for special applications. In this article, we’ll break down the differences between the shape (bow) of the shackle as well as the different types of pins that are used for load securement. It can be confusing to understand the correct type of shackle to use for your application, but you don’t want to guess or choose incorrectly-that could result in a rigging failure that could cause significant damage or injury! Just like lifting slings and sling hooks, shackles come in a number of different designs and configurations. Shackles can be used in a variety of different applications, including: Shackles can be used in a number of different rigging and load securement applications to connect different types of lifting slings, chain, or rope to an object or to each other. A shackle is a u-shaped, load-bearing connecting device designed to be used with a removable pin.
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