Manufacturing / Free editable template

OEE six big losses tree template

Overall equipment effectiveness (OEE) shows how much of planned time produces good output, and the six big losses show where the rest goes. This example breaks a packing line's 72% OEE into availability, performance and quality, then into breakdowns, setups, small stops, reduced speed and two kinds of reject, each with a cause and the minutes lost.

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OEE six big losses tree example showing tree from oee to the six big losses, example cause under each loss, minutes-lost chart and the oee calculation
Everything in this example is editable. Replace the labels, move the shapes and adapt the layout to your work.

How to use this template

  1. Enter your planned time and ideal rate

    Replace the planned minutes and ideal packs per minute with your own. OEE is only comparable week to week if these two numbers stay fixed.

  2. Put minutes against every loss

    Convert each loss to minutes so they can be compared on one chart. Speed losses and small stops are often bigger than breakdowns but rarely logged.

  3. Attack the biggest bar first

    Use the chart to choose which loss to work on, then hand it to a fishbone or SMED session. Improving a small loss moves OEE very little.

Questions about this template

Can I put our own line's figures in?

Yes. Edit the availability, performance and quality figures in the OEE calculation, then update the minutes lost for each of the six losses in the chart.

Do I need an account to use it?

No. Open the template and edit it in your browser. Your work saves on this device. An account is optional if you want to sync your workspace.

Can I export the finished diagram?

Yes. Use Export in the editor to save a PNG, SVG or PDF, or download an editable .epicdraw backup.

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