Wood & Paper Manufacturing worked example

Mill Uptime Availability at 65% expected mill uptime: a worked example

This worked example runs the mill uptime availability numbers for a tougher week than the baseline: 65% expected mill uptime instead of the typical 90%. Estimate mill uptime availability for wood and paper manufacturing using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Sheets Produced per Machine Cycle: 4 units / cycle (held at the documented default)
  • Scheduled Machine Cycles Available: 480 cycles (held at the documented default)
  • Expected Mill Uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Expected First-Pass Yield: 97 % (held at the documented default)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where expected mill 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 during capacity planning, order promising, or OEE-style loss analysis on a paper machine, corrugator, or converting line. 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 mill uptime availability capacity: 1,211 units (headline result)
  • Gross mill uptime availability capacity: 1,920 units
  • Mill uptime availability downtime loss: 672 units
  • Mill uptime availability yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Mill Uptime Availability calculator, set expected mill uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.