Robot Safety — Fence Height vs Reach-Over
Fence Height vs Reach-Over calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066).
People reach over fences along a surprisingly flat arc — ISO 13857's tables encode decades of anthropometry. The cheap insight: pulling the hazard 300 mm further from the fence often saves 200–400 mm of fence height across the whole perimeter. This simplified lookup is for budgeting; quote the standard's table in the safety file.
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.
Fence Height vs Reach-Over 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 — Fence Height vs Reach-Over
Robot Safety — Fence Height vs Reach-Over computes the governing relationship ISO 13857 Table 2 (high-risk reach-over) — simplified lookup live as you type. People reach over fences along a surprisingly flat arc — ISO 13857's tables encode decades of anthropometry. The cheap insight: pulling the hazard 300 mm further from the fence often saves 200–400 mm of fence height across the whole perimeter. This simplified lookup is for budgeting; quote the standard's table in the safety file. 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 — Fence Height vs Reach-Over
- 1Enter your values — Hazard height, Horizontal distance fence→hazard (sensible defaults are pre-filled).
- 2Read the live results: Required fence height.
- 3Check the "with your numbers" line to see ISO 13857 Table 2 (high-risk reach-over) — simplified lookup substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Robot Safety — Fence Height vs Reach-Over?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula ISO 13857 Table 2 (high-risk reach-over) — simplified lookup 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)
- ✓People reach over fences along a surprisingly flat arc — ISO 13857's tables encode decades of anthropometry.
- ✓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 — fence height vs reach-over use?+
It evaluates ISO 13857 Table 2 (high-risk reach-over) — simplified lookup, 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?+
People reach over fences along a surprisingly flat arc — ISO 13857's tables encode decades of anthropometry. 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?+
Fence Height vs Reach-Over calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066). A free industrial robot kinematics & cell design tool. The cheap insight: pulling the hazard 300 mm further from the fence often saves 200–400 mm of fence height across the whole perimeter. 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
- Robot Safety — Mesh Opening vs Safety Distance
- Forward Kinematics — SCARA (400 mm class)
- Forward Kinematics — 6-Axis Benchtop (5 kg)
- Forward Kinematics — Collaborative Robot (5 kg)
- Forward Kinematics — Heavy Cobot (16 kg)
- Forward Kinematics — 6-Axis Industrial (20 kg)
- Forward Kinematics — Palletizing Robot (160 kg)
- Mix Quantities — M25 Site-Batched (1:1:2)
- Lift Planning — Lift Window Planning
Related Manufacturing tools
Spindle Speed Calculator — Aluminum 6061
Carbide starting RPM for milling Aluminum 6061: n = 1000·Vc/(π·D) with a handbook cutting speed preset.
● LiveSpindle Speed Calculator — Mild Steel 1018
Carbide starting RPM for milling Mild Steel 1018: n = 1000·Vc/(π·D) with a handbook cutting speed preset.
● LiveSpindle Speed Calculator — Stainless 304
Carbide starting RPM for milling Stainless 304: n = 1000·Vc/(π·D) with a handbook cutting speed preset.
● Live