Industrial Cleaning, Washing & Parts Cleanliness worked example

Washer Throughput at 99% expected washer uptime: a worked example

This scenario runs the washer throughput calculation on the strong side: 99% expected washer uptime, with every other input held at its documented default. Use it when production needs to know whether a parts washer can support demand without creating a bottleneck.

The inputs for this scenario

  • Cleaned parts per washer cycle: 80 parts / cycle (unchanged)
  • Available washer cycles: 42 cycles (unchanged)
  • Expected washer uptime: 99 % (raised for this scenario; the documented default is 88)
  • First-pass cleanliness yield: 96 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross washer throughput = cleaned parts per washer cycle × available washer cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 3,193 parts for good cleaned part throughput, the number this scenario is built around.
  • At this operating point the engine returns 3,360 parts for gross washer throughput.
  • At this operating point the engine returns 33.6 parts for washer downtime loss.
  • At this operating point the engine returns 133 parts for cleanliness yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected washer uptime sits at 88% and the headline result is 2,839 parts, this scenario comes in 12.5% above the baseline at 3,193 parts.
  • Use it when sizing a washer to a takt-driven line, justifying a second machine, or quantifying how much of a cleaning bottleneck is downtime versus dirty parts. 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

  • Good cleaned part throughput: 3,193 parts (headline result)
  • Gross washer throughput: 3,360 parts
  • Washer downtime loss: 33.6 parts
  • Cleanliness yield loss: 133 parts

Run it with your numbers

  • Every input above is editable in the live Washer Throughput calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.