Robot Safety — Cobot Contact Force Check (Transient)
Cobot Contact Force Check (Transient) calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066).
Power-and-force limiting is body-part-specific: the same robot speed that's legal against a palm can exceed the limit against a skull. Effective mass includes the payload — and the verdict's max-safe-speed is exactly the number integrators program into collaborative zones.
Formula
Note: Safety calculations here are layout-planning aids ONLY. The legally required values must come from the cited standards' full tables and a documented risk assessment by a qualified person.
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.
Cobot Contact Force Check (Transient) calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066). A free industrial robot kinematics & cell design tool — no sign-up, no upload, instant results in your browser.
About Robot Safety — Cobot Contact Force Check (Transient)
Robot Safety — Cobot Contact Force Check (Transient) computes the governing relationship F = v·√(k·µ) — energy-transfer model, ISO/TS 15066 Annex A live as you type. Power-and-force limiting is body-part-specific: the same robot speed that's legal against a palm can exceed the limit against a skull. Effective mass includes the payload — and the verdict's max-safe-speed is exactly the number integrators program into collaborative zones. 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 Robot Safety — Cobot Contact Force Check (Transient)
- 1Enter your values — Effective robot mass at contact, Relative speed at contact, Body-region stiffness k, Permissible transient force (sensible defaults are pre-filled).
- 2Read the live results: Predicted contact force, Max safe speed.
- 3Check the "with your numbers" line to see F = v·√(k·µ) — energy-transfer model, ISO/TS 15066 Annex A substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Robot Safety — Cobot Contact Force Check (Transient)?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula F = v·√(k·µ) — energy-transfer model, ISO/TS 15066 Annex A with authoritative sources cited on the page (ISO 13855 — Positioning of safeguards w.r.t. approach speeds; ISO 13857 — Safety distances (upper/lower limbs); ISO/TS 15066 — Collaborative robots: power & force limiting)
- ✓Power-and-force limiting is body-part-specific: the same robot speed that's legal against a palm can exceed the limit against a skull.
- ✓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 robot safety — cobot contact force check (transient) use?+
It evaluates F = v·√(k·µ) — energy-transfer model, ISO/TS 15066 Annex A, exactly as published. Sources: ISO 13855 — Positioning of safeguards w.r.t. approach speeds; ISO 13857 — Safety distances (upper/lower limbs); ISO/TS 15066 — Collaborative robots: power & force limiting. 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?+
Power-and-force limiting is body-part-specific: the same robot speed that's legal against a palm can exceed the limit against a skull. Safety calculations here are layout-planning aids ONLY. The legally required values must come from the cited standards' full tables and a documented risk assessment by a qualified person.
When is this calculator the right tool for the job?+
Cobot Contact Force Check (Transient) calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066). A free industrial robot kinematics & cell design tool. Effective mass includes the payload — and the verdict's max-safe-speed is exactly the number integrators program into collaborative zones. 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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