Hoisting — Manual Chain Hoist Effort
Manual Chain Hoist Effort calculation for hoisting and winching work.
A 2-tonne load on a 30:1 hoist needs ~80 kg-equivalent of chain pull — honest work but human. The travel output explains the other half of hoist life: thirty metres of hand chain through your gloves for one metre of lift. If the pull computes over ~40 kg sustained, the job wants a lever hoist or air motor.
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.
Manual Chain Hoist Effort 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 — Manual Chain Hoist Effort
Hoisting — Manual Chain Hoist Effort computes the governing relationship P = W/(ratio × η) · hand-chain travel = ratio × lift live as you type. A 2-tonne load on a 30:1 hoist needs ~80 kg-equivalent of chain pull — honest work but human. The travel output explains the other half of hoist life: thirty metres of hand chain through your gloves for one metre of lift. If the pull computes over ~40 kg sustained, the job wants a lever hoist or air motor. 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 — Manual Chain Hoist Effort
- 1Enter your values — Load, Mechanical ratio, Gear efficiency (sensible defaults are pre-filled).
- 2Read the live results: Hand-chain pull, Hand chain travel per m of lift.
- 3Check the "with your numbers" line to see P = W/(ratio × η) · hand-chain travel = ratio × lift substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Hoisting — Manual Chain Hoist Effort?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula P = W/(ratio × η) · hand-chain travel = ratio × lift 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)
- ✓A 2-tonne load on a 30:1 hoist needs ~80 kg-equivalent of chain pull — honest work but human.
- ✓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 — manual chain hoist effort use?+
It evaluates P = W/(ratio × η) · hand-chain travel = ratio × lift, 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?+
A 2-tonne load on a 30:1 hoist needs ~80 kg-equivalent of chain pull — honest work but human. 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?+
Manual Chain Hoist Effort calculation for hoisting and winching work. A free crane load, wind & rigging safety tool. The travel output explains the other half of hoist life: thirty metres of hand chain through your gloves for one metre of lift. 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.
Related tools
- Hoisting — Lever Hoist (Come-Along) Check
- Hoisting — Air Hoist Duty Sizing
- Hoisting — Winch Pull & Anchor Load
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- Lift Planning — Drift & Clearance Check
- Lift Planning — Spreader Beam Compression
- Network — Stopping/Seal Leakage
- Plant Ops — Mix Cost per Tonne
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