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OEE (Overall Equipment Effectiveness) is a key indicator for measuring the efficiency of a machine. The OEE of the plant allows us to know the productivity and efficiency of the plant’s production processes. In the same way, it allows to know those aspects that are not favouring productivity. Among these are identified stoppages, breakdowns, quality problems, etc.
The analysis of the OEE of the plant will allow us to know where the production processes are in terms of efficiency and productivity, and to work to improve them and achieve the best results.
The OEE analysis is calculated on the basis of three concepts: availability, performance and quality.
Availability = time producing / planned time to produce x 100
Yield = quantity of actual production / quantity of ideal production x 100
Quality = quantity of good parts / quantity of produced parts x 100
To calculate OEE production, the three variables are applied to the following formula:
OEE = Availability x Performance x Quality
For the OEE analysis, all the concepts are expressed as a percentage (%), obtaining a result that will be between 0% and 100%, the latter being the optimum result.
At present, many companies have their OEE below 70%, thus having a great margin for improvement in productivity and efficiency.
Not taking plant OEE into consideration can lead to a great loss of profitability and efficiency. On the other hand, analysing OEE systems can ensure an improvement in your productivity and efficiency and an increase in the quality of your results.
To improve your plant’s OEE systems you should look at optimising the OEE indicators that affect your performance.
Furthermore, with the implementation of an MES system, a complete OEE analysis can be carried out to find out the points that are affecting productivity, both positively and negatively, and to influence them in order to obtain the best results.