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How this works: enter the load and rigging weight, the radius you'll work at, and the crane's rated capacity at that radius from the load chart. We work out the utilisation (gross load ÷ rated capacity). Anything over 75% should trigger a critical / engineered lift study by a competent person.
- Enter a load weight greater than zero.
- Enter the crane rated capacity at radius.
- Enter the working radius.
General guidance only. This tool gives indicative results from the numbers you enter. It is not engineering advice, a compliance assessment or a substitute for a competent person, AS 2550 requirements or your crane manufacturer's documentation. Verify anything safety-critical with a qualified professional before acting on it.
Talk through the requirement
Need an engineering assessment?
Describe the structure, modification, repair or remaining-life question and request the appropriate assessment pathway.
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