Precision Springs, Stampings & Micro-Formed Components worked example

Setup Changeover Time at 7.2% setup, handling, and delay allowance: a worked example

This worked example runs the setup changeover time numbers for a tougher week than the baseline: 7.2% setup, handling, and delay allowance instead of the typical 10%. Estimate setup changeover time for precision springs, stampings and micro-formed components using production-ready inputs so teams can plan labor hours, schedule the work, or check whether the job fits the available shift time.

The inputs for this scenario

  • Parts to run this changeover batch: 120 units (held at the documented default)
  • Machine run rate after setup: 12 units / min (held at the documented default)
  • Setup, handling, and delay allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base setup changeover time = setup changeover time workload รท setup changeover time completion rate.
  • Required setup changeover time works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base setup changeover time works out to 10 hr at these inputs.
  • Setup changeover time allowance applied works out to 7.2 % at these inputs.
  • Setup changeover time completion rate works out to 12 pieces / min at these inputs.

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 2.55% below the baseline at 10.72 hr.
  • Use it when scheduling a press or coiler, quoting lead time, or comparing SMED improvements that shrink the allowance. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Required setup changeover time: 10.72 hr (headline result)
  • Base setup changeover time: 10 hr
  • Setup changeover time allowance applied: 7.2 %
  • Setup changeover time completion rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Setup Changeover Time calculator, set setup, handling, and delay allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.