Robotics & Automation worked example

Robot OEE at 68% performance factor: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop performance factor to 68%, then walk the calculation through step by step. Estimate robot cell OEE from availability, performance, and quality so cell performance can be compared across cells, shifts, and product families.

The inputs for this scenario

  • Robot operating time: 420 hr (held at the documented default)
  • Planned production time: 480 hr (held at the documented default)
  • Performance factor: 68 % (the input this scenario stresses; the baseline uses 95)
  • Quality factor: 98 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Robot OEE availability = robot operating time / planned production time.
  • Robot OEE works out to 58.31 % OEE at these inputs, and this is the headline figure for the scenario.
  • Base availability works out to 87.5 % at these inputs.
  • Performance factor works out to 68 % at these inputs.
  • Quality factor works out to 98 % at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where performance factor sits at 95% and the headline result is 81.46 % OEE, this scenario comes in 28.42% below the baseline at 58.31 % OEE.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to performance factor, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It treats the robot as the unit of analysis; if the robot idles because an upstream station starved it, that downtime lands on robot availability even though the root cause is elsewhere.

Results at a glance

  • Robot OEE: 58.31 % OEE (headline result)
  • Base availability: 87.5 %
  • Performance factor: 68 %
  • Quality factor: 98 %

Run it with your numbers

  • To rerun this with your own numbers, open the live Robot OEE calculator, set performance factor to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.