UV Curing worked example

UV Cure System Throughput at 61% line uptime: a worked example

This worked example runs the uv cure system throughput numbers for a tougher week than the baseline: 61% line uptime instead of the typical 85%. Project good cured parts per hour from belt speed, parts pitch, line uptime, and cure-related yield - the realistic capacity, not nameplate.

The inputs for this scenario

  • Parts per belt foot: 2 parts / ft (held at the documented default)
  • Belt speed: 30 ft / min (held at the documented default)
  • Line uptime: 61 % (the input this scenario stresses; the baseline uses 85)
  • Cure-related yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross throughput (parts/hr) = parts per belt foot × belt speed × 60.
  • Net good cured parts / hr works out to 35.5 good parts / hr at these inputs, and this is the headline figure for the scenario.
  • Gross throughput (nameplate) works out to 60 parts / hr at these inputs.
  • Hours lost to uptime works out to 23.4 parts / hr at these inputs.
  • Loss to cure-related rejects works out to 1.1 parts / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where line uptime sits at 85% and the headline result is 49.47 good parts / hr, this scenario comes in 28.24% below the baseline at 35.5 good parts / hr.
  • Use it when scoping a UV curing line for a new job, validating whether existing equipment can hit a daily quota, or quantifying how much capacity downtime and cure rejects are costing you. 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

  • Net good cured parts / hr: 35.5 good parts / hr (headline result)
  • Gross throughput (nameplate): 60 parts / hr
  • Hours lost to uptime: 23.4 parts / hr
  • Loss to cure-related rejects: 1.1 parts / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live UV Cure System Throughput calculator, set line uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.