Calculating
Safe Load Capacity

One of the most common mistakes in load handling is underestimating the equipment’s capacity or overestimating personnel strength. It’s crucial to know how to calculate the safe load capacity to avoid overloads that could lead to catastrophic failures.

The first step is to understand the term “SWL” (Safe Working Load), which refers to the maximum load that equipment can handle safely. This information is usually marked on the equipment, but it’s also essential to understand the equipment’s nominal capacity and consider factors like the lifting angle, which can reduce the effective capacity.

For instance, when using slings, the angle between the slings and the load is critical. As the angle increases, the tension on the slings also increases, reducing their capacity to support weight. Load charts or capacity calculation software can be helpful to ensure everything stays within safe limits.

Remember that environmental conditions, such as temperature and humidity, can affect the capacity of materials, so correction factors should always be applied as needed.

Accurately calculating safe load capacity is not only a regulatory requirement but also an essential practice to maintain workplace safety. Never assume; always verify.