MedTech Manufacturing worked example

Cleanroom Gowning Time at 17% re-gowning and transition allowance: a worked example

This scenario runs the cleanroom gowning time calculation on the strong side: 17% re-gowning and transition allowance, with every other input held at its documented default. Use this when planning shift schedules to understand non-productive time lost to gowning, or when justifying layout changes that reduce cleanroom entry frequency.

The inputs for this scenario

  • Cleanroom entries per shift: 24 entries (unchanged)
  • Gowning throughput (entries per minute): 0.13 entries / min (unchanged)
  • Re-gowning and transition allowance: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base cleanroom gowning time = cleanroom entries per shift รท entries processed per minute) to the inputs above produces each figure below.
  • At this operating point the engine returns 225 min for total gowning time per shift, the number this scenario is built around.
  • At this operating point the engine returns 192 min for base gowning time (no allowance).
  • At this operating point the engine returns 17 % for re-gowning and transition time added.
  • At this operating point the engine returns 0.13 pieces / min for gowning throughput rate.

How this compares with the baseline

  • Against the tool's baseline example, where re-gowning and transition allowance sits at 15% and the headline result is 221 min, this scenario comes in 1.74% above the baseline at 225 min.
  • Use it when sizing gowning-room capacity, building labor standards, or justifying a second gowning station to relieve a start-of-shift queue. 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

  • Total gowning time per shift: 225 min (headline result)
  • Base gowning time (no allowance): 192 min
  • Re-gowning and transition time added: 17 %
  • Gowning throughput rate: 0.13 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.