Thermal Spray, Hardfacing & Wear Coatings worked example

Spray Time Per Part at 12% non-productive time allowance: a worked example

This scenario runs the spray time per part calculation on the strong side: 12% non-productive time allowance, with every other input held at its documented default. Use it when spray time per part in thermal spray, hardfacing and wear coatings is changing rate or allowance and you want to see the impact.

The inputs for this scenario

  • Coating passes or volume to deposit: 120 units (unchanged)
  • Deposition (spray) rate: 12 units / hr (unchanged)
  • Non-productive time allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base spray time per part time = required work รท processing rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for adjusted run time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr 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 non-productive time 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 the spray booth, quoting labor and consumables per part, or checking whether a takt target is achievable. 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

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

Run it with your numbers

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

Last reviewed 2026-05-12.