What is OEE?
Imagine that your productive capacity is like a red fruit tartlet. The goal is to be able to enjoy all your content, but you have a guest at home: non-productivity. Different factors will make this guest want a bigger piece and your task, as the person in charge of the production, is to leave him the smallest possible portion.
Now, let's see what this 'non-productivity' is divided into
For example, if your press was scheduled to work 5 shifts of 8 hours (40 hours) but if, due to unscheduled stops such as lack of material or jams, the machine actually worked 32 hours, the availability indicator is 32 h / 40h=80%
The rate at which parts are produced while the machine is cycling.
two
In this case, if the expected -or theoretical- cycle for your injected part was 24 seconds and some cooling delays are forcing you to increase it to 27 seconds, the performance indicator would be 24 s / 27 s_cc781905-5cde-3194 -bb3b-136bad5cf58d_ ≈ 89%
Finally, if 4,000 parts without defects were obtained out of 4,267 parts produced (in 32 hours ​, with a cycle of 27 seconds), the quality indicator turns out to be
4000 pieces / 4267 pieces ≈ 94%
Therefore, in this example the OEE gives a value of:
1
two
3
=
x
x
80%
89%
94%
67%
not productivity
= 33%
A world-class workshop reaches OEE values of 85% , so the example has a very important potential for optimization.
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Thanks to monitoring with Kern IoP equipment | SMARTPRO , it is possible to know your OEE in a reliable and updated way for any time range. Knowing the OEE and knowing what the reasons have been for it to be affected will allow you to intervene in your production to reduce your cost per part.