Spreader bar

A spreader bar is a piece of lifting equipment used to separate the slings or ropes of a lifting assembly. It is designed to maintain a specific distance between the lifting points, preventing crushing or damage to the load and improving stability during lifting operations. Spreader bars are typically rigid structures, often made of steel, with lifting eyes or connection points at each end for attaching slings or other rigging hardware.

The primary function of a spreader bar is to distribute the lifting force more evenly across the load. By keeping the slings parallel or at a wider angle than would otherwise be possible, it reduces the inward compressive forces that can deform or damage fragile loads. This is particularly important when lifting long, flexible, or easily crushed objects such as pipes, precast concrete sections, or machinery components.

Spreader bars come in various designs, including fixed-length, adjustable-length, and modular configurations. Adjustable spreader bars allow for flexibility in accommodating different load dimensions, while modular designs enable the creation of custom spreader bar configurations by combining different sections.

The safe working load (SWL) of a spreader bar is a critical consideration and must be clearly marked on the bar itself. It is essential to select a spreader bar with an SWL that meets or exceeds the weight of the load being lifted, and to ensure that the slings and other rigging components used in conjunction with the spreader bar are also rated appropriately. Regular inspection of spreader bars for signs of damage, such as cracks, bends, or corrosion, is crucial to ensure their continued safe operation.