Crane rigging is the specialized process of securing, lifting, and moving heavy loads using cranes and dedicated hardware. It requires precise calculation of load dynamics, center of gravity, and sling angles to ensure safe and controlled movement.
Professional riggers execute sling selection, hardware configuration, and load attachment in strict compliance with OSHA regulations, ASME B30.5 for mobile cranes, and ASME B30.9 for slings. The procedure dictates the exact use of wire rope, synthetic, or chain slings, along with shackles and spreader bars, tailored to the load’s dimensions and weight.
Proper execution mitigates the risk of catastrophic failure by verifying all components meet the required working load limit (WLL). A qualified rigger maintains constant communication with the crane operator to control the load during the entire lift sequence, preventing shock loading and load shift.
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