Robotics & Automation worked example

Robot Changeover Time at 29% verification and first-off allowance: a worked example

This scenario runs the robot changeover time calculation on the strong side: 29% verification and first-off allowance, with every other input held at its documented default. Use it during SMED work on a robot cell so you can see changeover minutes before committing to a faster schedule or a smaller batch.

The inputs for this scenario

  • Changeover steps (EOAT, recipe, fixture, vision): 18 steps (unchanged)
  • Step completion rate: 1 steps / min (unchanged)
  • Verification and first-off allowance: 29 % (raised for this scenario; the documented default is 25)

Working through the calculation

  • Applying the documented formula (Base robot changeover time = changeover steps / step completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 23.22 min for required robot changeover time, the number this scenario is built around.
  • At this operating point the engine returns 18 min for base robot changeover time.
  • At this operating point the engine returns 29 % for verification and first-off allowance applied.
  • At this operating point the engine returns 1 pieces / min for step completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where verification and first-off allowance sits at 25% and the headline result is 22.5 min, this scenario comes in 3.2% above the baseline at 23.22 min.
  • Use it when planning small or mixed-model batches on a robot cell, building a SMED improvement case, or setting a minimum economic run length. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Required robot changeover time: 23.22 min (headline result)
  • Base robot changeover time: 18 min
  • Verification and first-off allowance applied: 29 %
  • Step completion rate: 1 pieces / min

Run it with your numbers

  • Every input above is editable in the live Robot Changeover Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.