Hoisting — Air Hoist Duty Sizing
Air Hoist Duty Sizing calculation for hoisting and winching work.
Air hoists win where electric ones cook: 100% duty cycle, stall without harm, spark-free for paint shops and rigs. The bill arrives as compressed air — the most expensive energy in the plant. The air-flow estimate here tells you whether the compressor, not the hoist, is the real purchase.
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.
Air Hoist Duty Sizing calculation for hoisting and winching work. A free crane load, wind & rigging safety tool — no sign-up, no upload, instant results in your browser.
About Hoisting — Air Hoist Duty Sizing
Hoisting — Air Hoist Duty Sizing computes the governing relationship duty% = lifts × 2·(h/v) ÷ 60 · air ≈ shaft kW × 1 m³/min live as you type. Air hoists win where electric ones cook: 100% duty cycle, stall without harm, spark-free for paint shops and rigs. The bill arrives as compressed air — the most expensive energy in the plant. The air-flow estimate here tells you whether the compressor, not the hoist, is the real purchase. 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 Hoisting — Air Hoist Duty Sizing
- 1Enter your values — Typical load, Lifts per hour, Lift height, Hoist speed at load (sensible defaults are pre-filled).
- 2Read the live results: Motor-on time share, Air use (typ. 1 m³/min·kW).
- 3Check the "with your numbers" line to see duty% = lifts × 2·(h/v) ÷ 60 · air ≈ shaft kW × 1 m³/min substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Hoisting — Air Hoist Duty Sizing?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula duty% = lifts × 2·(h/v) ÷ 60 · air ≈ shaft kW × 1 m³/min with authoritative sources cited on the page (Wire Rope Technical Board — Wire Rope Users Manual, 4th ed.; ASME B30.5/B30.9/B30.20 — Cranes, slings and below-the-hook devices)
- ✓Air hoists win where electric ones cook: 100% duty cycle, stall without harm, spark-free for paint shops and rigs.
- ✓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 hoisting — air hoist duty sizing use?+
It evaluates duty% = lifts × 2·(h/v) ÷ 60 · air ≈ shaft kW × 1 m³/min, exactly as published. Sources: Wire Rope Technical Board — Wire Rope Users Manual, 4th ed.; ASME B30.5/B30.9/B30.20 — Cranes, slings and below-the-hook devices. 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?+
Air hoists win where electric ones cook: 100% duty cycle, stall without harm, spark-free for paint shops and rigs. 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?+
Air Hoist Duty Sizing calculation for hoisting and winching work. A free crane load, wind & rigging safety tool. The bill arrives as compressed air — the most expensive energy in the plant. 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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