Precision Springs, Stampings & Micro-Formed Components worked example

Setup Changeover Time at 12% setup, handling, and delay allowance: a worked example

This scenario runs the setup changeover time calculation on the strong side: 12% setup, handling, and delay allowance, with every other input held at its documented default. Use it when setup changeover time in precision springs, stampings and micro-formed components is being added to next week's schedule and you need an honest hours estimate.

The inputs for this scenario

  • Parts to run this changeover batch: 120 units (unchanged)
  • Machine run rate after setup: 12 units / min (unchanged)
  • Setup, handling, and delay allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base setup changeover time = setup changeover time workload รท setup changeover time completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required setup changeover time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base setup changeover time.
  • At this operating point the engine returns 12 % for setup changeover time allowance applied.
  • At this operating point the engine returns 12 pieces / min for setup changeover time completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where setup, handling, and delay allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • Use it when scheduling a press or coiler, quoting lead time, or comparing SMED improvements that shrink the allowance. 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 setup changeover time: 11.2 hr (headline result)
  • Base setup changeover time: 10 hr
  • Setup changeover time allowance applied: 12 %
  • Setup changeover time completion rate: 12 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.