OEE – definition and calculation

OEE & TEEP

The two KPIs overall equipment effectiveness (OEE) and total effective equipment performance (TEEP) are the main indicators of your production output. But how are they different?

OEE

Overall equipment effectiveness

OEE determines performance during planned production times and downtime because of unplanned failures. This means that before the calculation, factors such as maintenance, breaks, public holidays, and weekends or vacations are taken into account. Production stoppages are only determined for planned production times. This KPI is thus primarily suitable for recognizing and initiating a possible improvement of the output.

TEEP

Total effective equipment performance

TEEP, on the other hand, determines the maximum performance with current effectiveness, i.e., it assumes that a system is in operation 24 hours a day. This measurement is useful for identifying whether additional production times would allow production to increase or whether another system will be needed.

Factors

Utilization

The utilization compares the currently planned production time with the total available time. It is not part of the classic OEE metric, but is included in the TEEP metric (Total Effective Equipment Performance).

Availability

Availability is reduced by unplanned downtime during production. Missing material, broken parts of the system or faults reduce the output of the production facilities. These losses are known as availability losses and are further subdivided into breakdowns, setups, and conversions. The available production time is compared to the downtime.

Performance

The performance is defined as the number of parts produced compared to the target quantity. If as many parts were produced in a certain period of time as were planned, the performance is 100%.

Quality

The quality score represents the ratio of all parts produced as compared to the number of parts produced without errors. So, if there are no faulty parts among all parts that are produced, the quality is 100%.

Benefits

Save expensive investments

Expensive investments for additional machines can be saved by uncovering spare capacity!

Increase effectiveness

By automatically recording the OEE KPI, deviations are detected immediately and any potential for improvement identified. The reduced response time has a positive effect on the effectiveness of your system!

Contact

AUTFORCE Automations GmbH
Lagerpostweg 37
8403 Lebring 
+43 (3182) 49013 - 0
office.at@autforce.com 
www.autforce.com 

AUTFORCE Germany GmbH
Buxacherstraße 5
87700 Memmingen 
+49 (157) 86 40 67
office.de@autforce.com 
www.autforce.com 

Imprint
© 2017 AUTFORCE Automations GmbH