Mining Vehicle & Underground Equipment worked example

Final Test Capacity at 99% final-test bay uptime: a worked example in mining vehicle & underground equipment

What does the result look like when final-test bay uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when final test capacity in mining vehicle and underground equipment is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Machines passing final test per cycle: 4 units / cycle (unchanged)
  • Available final-test cycles in the period: 480 cycles (unchanged)
  • Final-test bay uptime: 99 % (raised for this scenario; the documented default is 90)
  • Final-test first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross final test capacity = final test capacity output per cycle × available final test capacity cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good final test capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross final test capacity.
  • At this operating point the engine returns 19.2 units for final test capacity downtime loss.
  • At this operating point the engine returns 57.02 units for final test capacity yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where final-test bay uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • A figure at this level is achievable when final-test bay uptime is genuinely sustained, not just peaked for a shift. It assumes one representative cycle time and steady yield. Mixed models with very different test durations need to be run separately or weighted, or the gross figure will be optimistic.

Results at a glance

  • Good final test capacity: 1,844 units (headline result)
  • Gross final test capacity: 1,920 units
  • Final test capacity downtime loss: 19.2 units
  • Final test capacity yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.