Plating, Anodizing & Surface Treatment worked example

Bath Life Estimate at 65% bath availability uptime: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop bath availability uptime to 65%, then walk the calculation through step by step. Estimate bath life estimate for plating, anodizing and surface treatment using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Parts finished per bath turnover: 4 units / cycle (held at the documented default)
  • Turnovers available before dump: 480 cycles (held at the documented default)
  • Bath availability uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • First-pass finish yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross bath life estimate capacity = bath life estimate output per cycle × available bath life estimate cycles.
  • Good bath life estimate capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross bath life estimate capacity works out to 1,920 units at these inputs.
  • Bath life estimate downtime loss works out to 672 units at these inputs.
  • Bath life estimate yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where bath availability 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.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to bath availability uptime, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes uptime and yield hold steady across the bath's life; in reality both usually degrade as the bath ages, so late-life output will run below this estimate.

Results at a glance

  • Good bath life estimate capacity: 1,211 units (headline result)
  • Gross bath life estimate capacity: 1,920 units
  • Bath life estimate downtime loss: 672 units
  • Bath life estimate yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Bath Life Estimate calculator, set bath availability uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.