Finishing worked example

Part Heat-Up Time at 12% part mass allowance: a worked example

Push part mass allowance up to 12% and the picture changes. This example computes every intermediate figure at that operating point. Use this calculator for practical powder coating or surface finishing planning, quoting, troubleshooting, or line setup.

The inputs for this scenario

  • Part metal temperature rise required: 120 °F (unchanged)
  • Part heating rate in oven: 12 °F per min (unchanged)
  • Part mass allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base time = required amount ÷ process rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 min for adjusted run time, the number this scenario is built around.
  • At this operating point the engine returns 10 min for base run time.
  • At this operating point the engine returns 12 % for allowance applied.
  • At this operating point the engine returns 12 pieces / min for process rate.

How this compares with the baseline

  • Against the tool's baseline example, where part mass allowance sits at 10% and the headline result is 11 min, this scenario comes in 1.82% above the baseline at 11.2 min.
  • It computes the minutes for a part's metal to reach target metal temperature, from the required rise, the part's in-oven heating rate, and a mass allowance for heavy sections. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Adjusted run time: 11.2 min (headline result)
  • Base run time: 10 min
  • Allowance applied: 12 %
  • Process rate: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live Part Heat-Up Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.