OEE and TEEP: key performance indicators for maximum production efficiency
Monitoring machine performance is crucial for optimizing production processes. Two key performance indicators in this context are overall equipment effectiveness (OEE) and total effective equipment productivity (TEEP). A sound understanding of these key figures helps to identify and successfully implement targeted measures to optimize production efficiency.
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OEE determines the performance during planned production times and downtimes due to unplanned stoppages. This means that factors such as maintenance, breaks, public holidays and weekends or vacations are taken into account before the calculation. Production downtimes are only determined during planned production times. This key figure is therefore primarily suitable for recognizing and initiating a possible improvement in output.
TEEP, on the other hand, determines the maximum output with current effectiveness, i.e. assumes that a system is in operation 24 hours a day. This key figure is suitable for recognizing whether additional production times would make it possible to increase production or whether an additional system would be required.
Depending on the industry, different values can be achieved for OEE and TEEP. In highly automated areas, top productions can achieve OEE values of up to 90 %, while TEEP values of up to 80 % are considered realistic.
The two key figures are made up of four factors each. All are calculated as a percentage and combined by multiplication to form the respective key figures.
Availability is reduced by unplanned system downtimes during production. Missing material, broken system parts or malfunctions reduce the output of production systems. These losses are known as availability losses and are further subdivided into operational disruptions and set-up and changeover. The available production time is compared with the downtimes.
The output is defined as the number of parts produced compared to the target quantity. If the same number of parts were produced in a certain period as was planned, the performance is 100%.
The quality factor is the ratio of all parts produced to the number of parts produced without defects. If there are no faulty parts among all the parts that have been produced, the quality is 100%.
Utilization compares the currently planned production time with the total available time. It is not part of the classic OEE key figure, but belongs to the TEEP key figure (Total Effective Equipment Performance).
Let’s take your production to the next level together. Thanks to the automated data collection of our autfactory, the causes of losses can be identified and unused potential recognized. The data obtained can be used to initiate processes for continuous improvement
(CIP) in order to permanently increase productivity and optimize output. Whether in the home office or in production, on the tablet or on the PC – all data can be evaluated directly live. All you need is a web browser.
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Christoph Steiger
Industrial software expert
+43 (664) 59 78 668
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