Heat Treatment, Furnaces & Thermal Processing worked example

Thermal Profile Window at 65% profile equipment uptime: a worked example

Suppose profile equipment uptime falls to 65%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate qualified thermal profile check capacity from profile runs per cycle, available cycles, logger uptime, and accepted profile yield.

The inputs for this scenario

  • Profiles reviewed per cycle: 2 profiles / cycle (held at the documented default)
  • Available profile cycles: 8 cycles / shift (held at the documented default)
  • Profile equipment uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Accepted profile yield: 95 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross thermal profile capacity = profiles reviewed per cycle × available profile cycles.
  • Accepted thermal profile capacity works out to 9.88 profiles / shift at these inputs, and this is the headline figure for the scenario.
  • Gross profile capacity works out to 16 profiles / shift at these inputs.
  • Profile equipment downtime loss works out to 5.6 profiles / shift at these inputs.
  • Profile reject loss works out to 0.52 profiles / shift at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where profile equipment uptime sits at 90% and the headline result is 13.68 profiles / shift, this scenario comes in 27.78% below the baseline at 9.88 profiles / shift.
  • It computes the accepted thermal profiling capacity per shift by derating gross profile capacity (output per cycle times available cycles) for equipment uptime and accepted yield. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Accepted thermal profile capacity: 9.88 profiles / shift (headline result)
  • Gross profile capacity: 16 profiles / shift
  • Profile equipment downtime loss: 5.6 profiles / shift
  • Profile reject loss: 0.52 profiles / shift

Run it with your numbers

  • To rerun this with your own numbers, open the live Thermal Profile Window calculator, set profile equipment uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.