OEE & Factory Performance worked example

Bottleneck Impact with bottleneck rate of 90 units / hr: a worked example

This worked example runs the bottleneck impact numbers for a tougher week than the baseline: bottleneck rate of 90 units / hr instead of the typical 180 units / hr. Estimate the bottleneck impact for OEE & Factory Performance — the share of demand the constraining step can actually serve.

The inputs for this scenario

  • Bottleneck (constrained) rate: 90 units / hr (the input this scenario stresses; the baseline uses 180)
  • Upstream demand rate: 200 units / hr (held at the documented default)
  • Percent basis: 100 x (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Demand served = bottleneck rate ÷ upstream demand × 100.
  • Demand the bottleneck can meet works out to 45 % at these inputs, and this is the headline figure for the scenario.
  • Raw ratio works out to 0.45 value at these inputs.
  • Conversion factor works out to 100 x at these inputs.
  • Denominator works out to 200 value at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where bottleneck rate sits at 180 units / hr and the headline result is 90 %, this scenario comes in 50% below the baseline at 45 %.
  • Use it when one station is pacing the line and you need to size how much output you are losing to that constraint. 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

  • Demand the bottleneck can meet: 45 % (headline result)
  • Raw ratio: 0.45 value
  • Conversion factor: 100 x
  • Denominator: 200 value

Run it with your numbers

  • To rerun this with your own numbers, open the live Bottleneck Impact calculator, set bottleneck rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.