Should synthetic web slings be twisted when lifting or supporting loads? Why?

The proper practice regarding synthetic web slings is to avoid twisting them when lifting or supporting loads. Twisting a web sling can indeed decrease the Working Load Limit (WLL) of the sling. When a sling is twisted, it can create uneven distribution of the forces acting on the sling, potentially leading to additional stress and wear on the fibers. This can compromise the sling's strength, increasing the risk of failure during a lift.

Synthetic web slings are designed to maintain their integrity and strength when used correctly, which includes being flat and untwisted. Ensuring that the slings are not twisted helps to maintain their capacity to safely support the intended loads. Thus, the choice to avoid twisting is based on safety protocols and best practices in rigging and lifting operations, emphasizing the importance of adhering to manufacturer guidelines for optimal performance.