Lift Planning — Pick-and-Carry Derate
Pick-and-Carry Derate for engineered lift planning.
Pick-and-carry is where crawler and articulated cranes earn their keep and lose their record: a 2° cross-slope — one track on a kerb — eats 20% of capacity before dynamics start. The boom must point straight ahead or straight back while traveling; over-the-side carrying is the tip-over archive's favourite chapter.
Formula
Note: Rigging and crane decisions are life-safety critical. This calculator is a planning aid — the load chart, sling tags, site lift plan and a qualified lift director govern every real lift.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Pick-and-Carry Derate for engineered lift planning. A free crane load, wind & rigging safety tool — no sign-up, no upload, instant results in your browser.
About Lift Planning — Pick-and-Carry Derate
Lift Planning — Pick-and-Carry Derate computes the governing relationship carry capacity = chart × travel factor × slope factor live as you type. Pick-and-carry is where crawler and articulated cranes earn their keep and lose their record: a 2° cross-slope — one track on a kerb — eats 20% of capacity before dynamics start. The boom must point straight ahead or straight back while traveling; over-the-side carrying is the tip-over archive's favourite chapter. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Lift Planning — Pick-and-Carry Derate
- 1Enter your values — Static chart capacity, Travel derate, Cross-slope derate (sensible defaults are pre-filled).
- 2Read the live results: Carry capacity.
- 3Check the "with your numbers" line to see carry capacity = chart × travel factor × slope factor substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Lift Planning — Pick-and-Carry Derate?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula carry capacity = chart × travel factor × slope factor with authoritative sources cited on the page (ASME B30.5/B30.9/B30.20 — Cranes, slings and below-the-hook devices; OSHA 29 CFR 1926 Subpart CC — Cranes & derricks in construction; DNV-ST-N001 — Marine operations (DAF methodology))
- ✓Pick-and-carry is where crawler and articulated cranes earn their keep and lose their record: a 2° cross-slope — one track on a kerb — eats 20% of capacity before dynamics start.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the lift planning — pick-and-carry derate use?+
It evaluates carry capacity = chart × travel factor × slope factor, exactly as published. Sources: ASME B30.5/B30.9/B30.20 — Cranes, slings and below-the-hook devices; OSHA 29 CFR 1926 Subpart CC — Cranes & derricks in construction; DNV-ST-N001 — Marine operations (DAF methodology). The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Pick-and-carry is where crawler and articulated cranes earn their keep and lose their record: a 2° cross-slope — one track on a kerb — eats 20% of capacity before dynamics start. Rigging and crane decisions are life-safety critical. This calculator is a planning aid — the load chart, sling tags, site lift plan and a qualified lift director govern every real lift.
When is this calculator the right tool for the job?+
Pick-and-Carry Derate for engineered lift planning. A free crane load, wind & rigging safety tool. The boom must point straight ahead or straight back while traveling; over-the-side carrying is the tip-over archive's favourite chapter. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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