Huyett catalog, shoulder-pattern lifting eye bolts are available with rated capacities that range from 600 lbs to 22,000 lbs. Each piece of equipment's maximum working load should be clearly displayed in product catalogs. Manufacturers design and build equipment to support a specific WLL. However, SWL and NRL have been largely superseded by the less ambiguous working load limit. Rigging hardware is typically rated with a working load limit (WLL) or rated capacity (RC), which may also be expressed as safe working load (SWL) or normal rated load (NRL) figures. Each piece of hardware, from cranes and chains to shackles and slings, should be selected to minimize the risk of failure. There are obvious safety implications if you choose hardware inadequate to the task. When selecting rigging hardware, you must ensure that it can support your load's weight.
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