OEE, a measurement used in Total Productive Maintenance programs, is a metric commonly found in Lean Manufacturing. Know how it plays an important role in lean manufacturing: https://bit.ly/2CJBy0a

1. Role Of
OEE in Lean
Manufacturing
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2. An Overview
In the case of lean manufacturing, we focus on
excluding non-value-adding activities and waste
to reduce complexity and cost.
It provides a foundation for operational excellence by process standardization,
worker empowerment and instills a culture of continuous improvement.

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OEE, a measurement used in Total Productive Maintenance
programs, is a metric commonly found in Lean Manufacturing.
The OEE metric and Lean process can help manufacturing answer
three questions:
How fast is the
machine when
running?
How often is the
machine available
to run?
What is the count
of acceptable
parts made?

4. There are six areas of losses
that can affect the OEE and
its three components.
Breaking down the losses to
these categories helps the
Lean manufacturing team
prioritize improvements.

5. Breakdown
Losses
This loss falls under the OEE “availability loss”
and Lean’s “unplanned stops” – sudden or
unexpected equipment downtime that makes
the machine less available. Contributing
factors may include:
• Major mechanical failures
• Electrical system failures
• Structural failure

6. Set-up &
Adjustment
Losses
These are an availability loss that falls under
Lean six big loss of “planned stops”. The
degree of loss depends on factors such as:
• Standards process
• Skill-level of operator
• Tooling consistency and quality

7. Idling & Minor
Stoppages
• Defective products resulting from a line
shutdown
• Operator on other machine or other tasks
• Temporary equipment malfunction
Production is interrupted by a temporary
malfunction or when the machine is idling.
This is an OEE performance loss and falls
under the Lean “small stops”. Contributing
factors include:

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Reduced Yield
Losses in quality caused by malfunctioning equipment or tooling.
An OEE quality loss, the degree of loss depends on factors such
as:
• Maintenance of equipment
• Raw Material
• Tooling

9. Process
Defects
Such defects occur during the stages of
production – from machine start-up, warm-
up, and “learning phase”. This stage is an OEE
quality loss and “production rejects” in the
Lean stages. The degree of loss depends on
factors such as:
• Maintenance of equipment
• Raw Material
• Tooling
• Operator skill level

10. Reduced Speed
Losses
This stage refers to the difference in
equipment design speed and the actual
operating speed. It is an OEE performance
loss and a Lean “slow cycles”. Factors include:
• Mechanical problems
• Operator training
• Risk of making unacceptable parts
at higher speeds
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