"Our machines are running – so why do we need OEE?"
- Christian Wagner

- Jun 20
- 2 min read

📅 Introducing OEE – But Why? (Part 1 of the Mini-Series)
I hear this question a lot when I first talk to small and medium-sized companies about implementing OEE.
And honestly – I get it. At first glance, everything seems to be running smoothly.
But a quick look beneath the surface often reveals a different picture:
Downtimes that no one is tracking
Slow processes that are seen as “normal”
Quality issues that have simply been accepted
👉 This is exactly where OEE (Overall Equipment Effectiveness) comes in.
OEE uncovers what has remained hidden:
Availability losses (unplanned stops, small breakdowns)
Performance losses (slow cycles, hidden wait times)
Quality losses (scrap, rework)
🔎 A real-world example:
A metalworking company believed they were using their main machine at 80% capacity.
But the OEE analysis revealed: The actual utilization was only 57%.
Why just 57% instead of 80%? The main reasons were:
14% lost due to frequent changeovers
11% due to technical malfunctions
8% lost through slow operation
5% scrap caused by recurring quality issues
Only through OEE did these weak points become visible – and therefore solvable.
My conclusion after 15+ years in industry:
✅ If you want true transparency, you need OEE.
✅ If you want improvement, you have to know where you really stand.
✅ If you want to stay competitive, gut feeling isn’t enough.
How does it look in your company?
💬 Are you already working with OEE – or still relying on gut feeling?
In the next 10 weeks, I’ll share how to successfully implement OEE in your company – step by step – as part of my OEE Mini-Series.
(And if you're curious what an initial OEE analysis could look like for your operation: I've developed a compact demo version I’d be happy to show you – no strings attached.)


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