What is the equation used to calculate Working Load Limit (WLL)?

The Working Load Limit (WLL) is calculated using the relationship between the component's Rated Capacity and the safety factors that are applied during usage. The equation WLL = CBS / DF is used to determine the WLL, where CBS stands for the Component's Breaking Strength and DF is the Design Factor.

In this formula, the breaking strength of the component (CBS) represents the maximum load that it can safely withstand before failure occurs. The design factor (DF) is a safety measure that accounts for uncertainties in load conditions, material defects, and other potential points of failure. By dividing the breaking strength by the design factor, you arrive at a realistic and safe working load limit, ensuring that the component is used within safe limits during operations.

This way, the WLL provides a reliable guideline to avoid overloading and to ensure the safety and integrity of rigging and lifting operations.