Qingdao Haosail Machinery Co., Ltd.

Rigging plays a vital role in lifting and hoisting operations, serving as the critical link between the load and lifting equipment. A clear understanding of basic rigging terminology and safety considerations is essential for preventing accidents and ensuring efficient, controlled lifting in industrial, construction, and logistics environments.

In rigging, one of the most important concepts is the Working Load Limit (WLL), which defines the maximum load a rigging component can safely support under normal operating conditions. The WLL should never be confused with the breaking load, as the breaking load represents the point of failure during testing and is significantly higher than the safe working capacity. Exceeding the WLL is one of the most common causes of rigging failure and must always be avoided.

Another key aspect of rigging safety is understanding how lifting configurations and angles affect load capacity. Even when the weight of the load appears to be within limits, improper sling angles or uneven loading can significantly increase the actual force applied to the rigging. As lifting angles increase, the effective working load limit of the sling decreases, making correct rigging geometry just as important as product strength.

Routine inspection and condition assessment are also fundamental to safe rigging operations. Rigging equipment should be checked before each use for signs of wear, deformation, corrosion, cracks, or damaged fibers. Any rigging component showing visible damage should be removed from service immediately, as continued use may lead to sudden and unpredictable failure.

Clear communication and proper terminology are equally important in rigging operations. Terms such as sling, shackle, hook, and lifting point should be understood and used correctly to avoid confusion during planning and execution. Consistent terminology helps ensure that everyone involved in the lifting process shares the same understanding of equipment capabilities and limitations.

In summary, safe rigging is not solely about selecting strong products, but about combining correct terminology, proper load assessment, suitable lifting methods, and regular inspection. By respecting working load limits, maintaining proper lifting angles, and ensuring rigging equipment is in good condition, lifting operations can be carried out more safely and efficiently.

About Us

Qingdao Haosail Machinery Co., Ltd. is a professional manufacturer and supplier of rigging and lifting solutions.

We provide a full range of products including wire rope slings, chain slings, webbing slings, shackles, hooks, and rigging hardware, all manufactured in compliance with EN, ISO, and international standards. Our products are widely used in construction, ports, industrial lifting, and offshore applications.