Spreader beams convert lifting loads into compressive forces in the bar and tensile forces in the slings. Because of this, spreader beams are highly efficient in their use of material, so they’re typically smaller, lighter, and less expensive to design and manufacture than a lifting beam. Because they use two lifting points instead of one singular lifting point, the weight of the load is distributed evenly across the beam, which eliminates the stress on a single lifting point. Spreader beams are ideal for lifting very wide or heavy-duty loads.
Spreader beams also help to control the load and when rigged properly, can reduce the chances of :
They can also be designed in fixed dimensions or can be engineered to allow for incremental adjustment of the sling angle, and the length of the beam itself, for off-center load adjustments.