What is Overall Equipment Effectiveness?

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What is Overall Equipment Effectiveness?


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).



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



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.



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).


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.


OEE Factors

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


OEE Factors all time, Planned Production Time, Run Time, Net Run Time


OEE related availability, performance, quality, OEE


Calculate OEE

Everything you need to calculate OEE for your manufacturing process.


Calculate OEE


Six Big Losses

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


OEE and it's work details



Improve OEE

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


Improve OEE and it's details


OEE step by step example

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What is Overall Equipment Effectiveness?

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