What is OEE Overall Equipment Effectiveness as per Lean Manufacturing?



In this article, you will learn what is Overall Equipment Effectiveness OEE and how to implement it as part of the lean manufacturing activities.

OEE Overall Equipment Effectiveness Definition

OEE (Overall Equipment Effectiveness) is a standard metric to measure manufacturing productivity.

It considers the percentage of manufacturing time that is truly productive.

In the best case, an OEE score of 100% is obtained when the Quality score is 100% (only Good Products), the Performance score is 100% (as fast as possible), and the Availability score is 100% (no Stop Time).

The advantage of the OEE metric is that is represented in percent and can be used to compare the effectiveness of different manufacturing operations and process.

OEE is the best tool metric for identifying losses, benchmarking progress, and improving the productivity of manufacturing equipment (i.e., eliminating waste). What is OEE Overall Equipment Effectiveness

OEE Overall Equipment Effectiveness Considerations

Overall Equipment Effectiveness or OEE has been adopted by many companies to improve operations and optimize the capacity of existing equipment.

Overall equipment effectiveness (OEE) is a term to evaluate how effectively a manufacturing operation is utilized.

It is a “best practices” metric that identifies the percentage of planned production time that is truly productive.  six sigma definitions

An OEE score of 100% represents perfect production: manufacturing only good parts, as fast as possible, with no downtime.

OEE Overall Equipment Effectiveness Components

OEE takes into account the various sub-components of the manufacturing process –

  • Availability, It considers unplanned and planned stops. An Availability Score of 100% is obtained when the process is always running during planned production time.
  • Performance, It considers Slow Cycles and Small Stops. A Performance Score of 100% is obtained when the process is running as fast as possible.
  • Quality. It considers defects and product to be reprocessed. A Quality Score of 100% is obtained when there are no Defects (only Good Products are being produced)

After the various factors are taken into account the result is expressed as a percentage. What is OEE Overall Equipment Effectiveness

This percentage can be viewed as a snapshot of the current production efficiency for a machine, line, or cell.

How to calculate OEE:

It is calculated as:

% OEE = % Availability x % Performance x % Quality

OEE considers all losses.

A manufacturing process with a 100% OEE score is obtained when only good pieces are been produced, as quickly as possible, with no stop time. What is OEE Overall Equipment Effectiveness

 brought to you by CIQA logo

CIQA is a quality and regulatory consultant with 25 years of experience developing products and managing projects in the medical device supply chain, and pharmaceutical industries. Rest assured of the safety or being in the right hands.

Our Lean Manufacturing team could provide you a broad range of professional expertise implementing these techniques and tools.


For more details about what is OEE Overall Equipment Effectiveness, follow us.

Quality procedures templates

Three (3) Options to Create Document Control Management DCM Procedures:

Bronze Option. You Can Create Your Own Quality Procedures, using a Template.

You can download samples of the Document Control Management DCM procedure templates in .pdf format. 

To see the complete list of the most popular quality procedures templates, click here.

In addition, you can request a quotation to buy online a full SOP template document in MS Word format that is completely editable, ready to fill, and adapt to your specific needs.

Silver Option. We Can Bring You Formal Training about what is OEE Overall Equipment Effectiveness.

This option is recommended if you want to learn more about how to build robust quality system procedures. One of our expert(s) can provide online step-by-step training to your team (unlimited assistance) on how to build reliable SOPs using our template(s). Also, you can improve your corporate quality procedures and policies by incorporating our template(s) and tools.  It includes a fully editable template from the Bronze option, plus training, exams, and a training certificate for each assistant.  Request a quote now.

Gold Option. We Can Create Customized Quality Procedures.

One of our expert(s) will create and prepare your customized SOPs with the inputs and specific information of your company. It includes a fully editable template from the Bronze option, plus online support in document creation, implementation, and training. Request a quote online.

Get in compliance today, CONTACT US (Hablamos Español)

REFERENCES: What is OEE Overall Equipment Effectiveness.



Picture of Ramon Cayuela, MS, BS, Chemical Engineering

Ramon Cayuela, MS, BS, Chemical Engineering

CIQA President and CEO.
I've been working in validation engineering since 1992 with many multinational pharmaceutical companies. I love sharing my passion and knowledge with others. If you have any questions about anything (or just have general questions). I will be more than happy to assist you. You can count on the BEST customer service on CIQA. I go to great lengths to make sure my clients are 100% satisfied with their purchases and check emails/messages consistently throughout the day. You can rest assured that everything being sold here is as-described or your money back. I look forward to working with you!