Understanding WLL can mean the difference between a successful lift and a catastrophic failure. In this guide, we’ll break down everything you need to know about WLL, including its definition, importance, calculations, and best practices for staying safe.

Working Load Limit (WLL) is the maximum working load designed by the manufacturer. This load represents a mass or force that is much less than that required to make the lifting equipment fail or yield, also known as the Minimum Breaking Load (MBL).

Jul 28, 2023 · Discover the meaning, calculation, and key differences between Safe Working Load (SWL) and Working Load Limit (WLL) in the context of lifting equipment safety.

Jun 21, 2019 · Working Load Limit (WLL), which is the maximum working load designed by the manufacturer. This load represents a force that is much less than that required to make the lifting equipment fail or yield. The WLL is calculated by dividing MBL by a safety factor (SF).

Sep 16, 2024 · A product’s working load limit (WLL) is the force that it's rated to withstand routinely, for extended periods, without fatiguing. WLL is the value you should consider when selecting your recovery equipment. Safety Factor (SF) is the ratio of a product’s breaking strength to its working load limit.

The lowest WLL for any component or set of components working together within a lift configuration determines the overall Gross Capacity for that configuration. The Working Load Limit for an individual piece of equipment is set by the equipment’s manufacturer.

Dec 3, 2019 · Abbreviated as WLL, it is the rating that should never be exceeded when using a product like a ratchet strap. Before using a piece of load-bearing equipment, always make sure to look at the working load limit before use as it is the maximum allowable loading force.

Working Load Limit (WLL): The maximum load that can be safely applied to the equipment under normal operating conditions. Breaking Strength: The load at which the equipment will physically fail or break. The key differences are: Safety Factor: WLL incorporates a safety factor, while breaking strength does not.

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Dec 2, 2023 · Working Load Limit (WLL) The working load limit is the maximum load (mass) that an item of lifting equipment is designed to raise, lower or suspend. In some standards and documents WLL is referred to as ‘maximum SWL.’ This term is more generally used for lifting accessories, but lifting appliances are now commonly marked with a rated capacity.