Pump, Compressor & Rotating Equipment Assembly worked example

Test Stand Capacity at 99% test-stand uptime: a worked example in pump, compressor & rotating equipment assembly

This scenario runs the test stand capacity calculation on the strong side: 99% test-stand uptime, with every other input held at its documented default. Use it when test stand capacity in pump, compressor and rotating equipment assembly is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Units tested per test-stand cycle: 4 units / cycle (unchanged)
  • Available test-stand cycles: 480 cycles (unchanged)
  • Test-stand uptime: 99 % (raised for this scenario; the documented default is 90)
  • First-pass test yield: 97 % (unchanged)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where test-stand uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • Use it when the test bay is the suspected constraint, when quoting lead times, or when justifying a second stand or a yield-improvement project. 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 output capacity: 1,844 units (headline result)
  • Gross capacity: 1,920 units
  • Uptime loss: 19.2 units
  • Yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.