Overall Equipment Effectiveness (OEE) is the measure of the added value of a system.
It is the product of availability, performance and quality and is a key figure in a range between 0 and 1 or 0 % and 100 %:
OEE = availability x performance x quality
The three factors involved are calculated as follows:
| Availability = | Runtime |
| Running time + downtime |
| Performance = | Actual performance | (in pieces or tons or liters / hour) |
| Target performance |
| Quality = | produced parts – reworked parts – scrap parts |
| produced parts |
Our tip:
The value below which the OEE of your system should not fall depends on your industry and the type of manufacturing process!
For highly complex processes, an OEE of 60 % is already a good value, while 90 % can be the lower limit for fully continuous production, for example.
Further information on this topic can be found here:
