Robotics & Automation worked example

Robot Availability at 99% speed performance rate: a worked example

Push speed performance rate up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it during weekly cell review when robot availability has to roll up into OEE and you need an availability number plus the effective availability after performance and quality.

The inputs for this scenario

  • Robot available run time: 420 hr (unchanged)
  • Total scheduled cell time: 480 hr (unchanged)
  • Speed performance rate: 99 % (raised for this scenario; the documented default is 95)
  • Good-output quality rate: 98 % (unchanged)

Working through the calculation

  • Applying the documented formula (Robot availability = robot operating time / planned production time) to the inputs above produces each figure below.
  • At this operating point the engine returns 84.89 % available for effective robot availability, the number this scenario is built around.
  • At this operating point the engine returns 87.5 % for base availability.
  • At this operating point the engine returns 99 % for performance factor.
  • At this operating point the engine returns 98 % for quality factor.

How this compares with the baseline

  • Against the tool's baseline example, where speed performance rate sits at 95% and the headline result is 81.46 % available, this scenario comes in 4.21% above the baseline at 84.89 % available.
  • It computes base availability as operating time over planned time, then an effective availability that folds in performance and quality factors. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Effective robot availability: 84.89 % available (headline result)
  • Base availability: 87.5 %
  • Performance factor: 99 %
  • Quality factor: 98 %

Run it with your numbers

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

Last reviewed 2026-05-12.