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OVERALL EQUIPMENT EFFECTIVENESS

WHAT IS OEE?

OEE (Overall Equipment Effectiveness) is the gold standard for measuring manufacturing productivity. Simply put – it identifies the percentage of manufacturing time that is truly productive. An OEE score of 100% means you are manufacturing only Good Parts, as fast as possible, with no Stop Time. In the language of OEE that means 100% Quality (only Good Parts), 100% Performance (as fast as possible), and 100% Availability (no Stop Time).

Measuring OEE is a manufacturing best practice. By measuring OEE and the underlying losses, you will gain important insights on how to systematically improve your manufacturing process. OEE is the single best metric for identifying losses, benchmarking progress, and improving the productivity of manufacturing equipment (i.e., eliminating waste).

This website is devoted to mastering the art and science of OEE. Understand it. Measure it. Improve it.

Start here on your path to mastering OEE.

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Availability

Availability takes into account Unplanned and Planned Stops. An Availability score of 100% means the process is always running during Planned Production Time.

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Performance

Performance takes into account Slow Cycles and Small Stops. A Performance score of 100% means when the process is running it is running as fast as possible.

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Quality

Quality takes into account Defects (including parts that need Rework). A Quality score of 100% means there are no Defects (only Good Parts are being produced).

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Overall Equipment Effectiveness

OEE takes into account all losses. An OEE score of 100% means you are manufacturing only Good Parts, as fast as possible, with no Stop Time.

POPULAR OEE TOPICS

OEE Factors

Understand the three underlying factors of OEE: Availability, Performance, and Quality.

Chart of OEE three underlying factors: Availability, Performance, and Quality
Implement OEE

A simple step-by-step guide to measuring OEE for the first time.

Preview of step by step guides to measuring OEE with downloadable forms
World-Class OEE

Learn about the “mythical” world-class OEE and how to set an effective OEE target.

Chart of 85% OEE based on having 90% Availability, 95% Performance, and 99% Quality
Calculate OEE

Everything you need to calculate OEE for your manufacturing process.

Equation for calculating Overall Equipment Effectiveness by multiplying Availability, Performance, and Quality
Six Big Losses

A foundation for improvement that leverages and expands upon the three OEE factors.

Chart of OEE Loss factors (Availability, Performance, and Quality) relative to the Six Big Losses
Improve OEE

A simple and powerful methodology for improving OEE, with step-by-step example.

Process diagram for IDA (Information, Decision, Action) for improving productivity

ADDITIONAL OEE RESOURCES

OEE is presented by Vorne. We are experts in the field of improving manufacturing productivity and our flagship product is the XL Productivity Appliance™. Our other websites include: