Tool Sharpening, Reconditioning & Industrial Repair Services worked example

Coating Batch Size at 65% pvd chamber uptime: a worked example

This worked example runs the coating batch size numbers for a tougher week than the baseline: 65% pvd chamber uptime instead of the typical 90%. Recoating is the final value-add in reconditioning — a PVD or CVD chamber lays down TiAlN, AlCrN, or similar coatings so a reground tool performs like new.

The inputs for this scenario

  • Tools loaded per coating run: 4 units / cycle (held at the documented default)
  • Coating runs available in the period: 480 cycles (held at the documented default)
  • PVD chamber uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • First-pass coating yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross coating batch size capacity = units per cycle × available cycles.
  • Good output capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross capacity works out to 1,920 units at these inputs.
  • Uptime loss works out to 672 units at these inputs.
  • Yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where pvd chamber uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • Use it when planning coating throughput for a shift, week, or campaign, or when deciding whether to add runs to hit a delivery number. 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

  • Good output capacity: 1,211 units (headline result)
  • Gross capacity: 1,920 units
  • Uptime loss: 672 units
  • Yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Coating Batch Size calculator, set pvd chamber uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.