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

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REFERENCES: What is OEE Overall Equipment Effectiveness.

httpss://en.wikipedia.org/wiki/Lean_Six_Sigma

httpss://www.greycampus.com/blog/quality-management/a-brief-introduction-to-lean-and-six-sigma-and-lean-six-sigma