Wire Rope Sling Capacity Chart – Calculating the Load of Basket Hitches and BridlesIf you are performing calculations involving the load of bridles and basket hitches, it’s important to use a wire rope sling capacity chart and also remember that as a reduction in the horizontal angle of the sling occurs the load imposed upon each leg increases. With bridles consisting of three or more legs, the horizontal angle is measured in the same manner as it is for horizontal sling angles consisting of two legged hitches. Different angles may result if a bridle consists of different leg lengths. The load supported by each leg must be determined based on the location of the center of gravity of the lift in the position of the slings. At Kennedy Wire Rope & Sling Co., Inc., we provide high quality wire rope sling components and can help you determine the capacity of your wire rope sling arrangement.
Rated Load Reduction ConsiderationsBy making an adjustment to the rated capacity of a choker hitch degrees with the body of the sling used in the choke, the rated capacity is reduced. Choker rated capacity tables indicate this reduction. The angle the choke must also be considered when determining reductions in rated capacity. The standard choke angle is about 135 degrees when a load is hanging free. However, using a choker hitch to lift internal load can produce a significant bend at the choke. It’s important to reduce a hitches rated capacity when it is used at an angle smaller than 120 degrees. As is evident from a wire rope sling capacity chart, the rated capacity of a wire rope sling must be adjusted when using a choker hitch to turn, shifts, or control the load. The rated capacity must also be adjusted when, in a multi-leg lift, the pull is against the choke. If multiple slings are used in the legs are not vertical, and additional reduction in rated capacity must be applied for the sling angle.
WarningUsing choker hitches at angles of 135° or greater is not recommended due to the instability produced with this arrangement. In addition to consulting with a wire rope sling capacity chart, considerable care should also be taken to ensure that the choke angle is determined and applied as accurately as possible. Contact us at Kennedy Wire Rope & Sling Co., Inc. for information about our wire rope sling products and how they can benefit your application.
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