What is Reduced Yield?

Reduced Yield refers to defective parts produced during a time period immediately post an equipment failure or set-up and adjustment.

Reduced Yield can have a significant impact on a manufacturer's productivity and bottom line. This type of yield loss occurs when defective parts are produced due to equipment failure or set-up and adjustment issues. The time period immediately following such incidents is particularly vulnerable to Reduced Yield, as operators may be less familiar with the equipment or making adjustments in an effort to get it back up and running.

Reduced Yield is one of the Six Big Losses to the Overall Equipment Effectiveness (OEE) and is considered a Quality Loss. Quality Losses refer to any defect or issue that causes a reduction in the quality of the final product. These losses can be particularly costly as they often require additional time and resources to address, such as rework, scrap, or customer returns. By monitoring and addressing Reduced Yield promptly, manufacturers can minimize the impact of Quality Losses on their OEE and maintain a high level of customer satisfaction.

To mitigate Reduced Yield, manufacturers can implement various strategies such as conducting regular maintenance on their equipment, providing training for operators, and using advanced monitoring and data analytics tools. By identifying the root cause of Reduced Yield and addressing it proactively, manufacturers can improve their OEE and reduce the likelihood of costly defects and customer complaints. Ultimately, by investing in Quality Loss prevention, manufacturers can build a reputation for delivering high-quality products and achieving long-term success in their industry.

Reduced Yield forms of the Six Big Losses to the OEE as a Quality Loss and is also known as Startup Rejects.


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