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Operational Excellence

Your OEE number is probably wrong

Almost every plant we visit reports an OEE. Very few can explain how the losses were classified, who decided a stop was planned, or why short stops never appear in the data at all.

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The Situation

Measurement discipline comes before improvement

A plant reports 78% OEE. Two hours on the floor with a stopwatch suggests something closer to 55%. Nobody falsified anything. Micro-stops under five minutes were never recorded, changeovers were classified as planned downtime, and speed loss was invisible because the rated speed in the system was set years ago to a number the machine has never achieved.

This matters beyond reporting accuracy. If your OEE is wrong, every capital decision built on it is wrong too. Plants buy a fourth machine when the three they own are running at half their real capability, because the number said capacity was exhausted.

So we do not start by improving OEE. We start by making it true. That is uncomfortable, because the honest number is almost always worse than the reported one, and somebody has been presenting the reported one to headquarters.

What We Do

Building a measurement system that holds

Baseline

Downtime taxonomy

A loss classification your team applies consistently: planned versus unplanned, setup, micro-stops, speed loss, quality loss. Ambiguity in the taxonomy is what makes OEE meaningless.

Truth

Rated speed validation

We verify the design speed each asset is measured against. Stale or optimistic rated speeds silently corrupt every availability and performance calculation downstream.

Maintenance

TPM & autonomous maintenance

Operator-level cleaning, inspection and lubrication routines, with clear boundaries on what operators own versus maintenance. Reduces the failure classes that cause most unplanned stops.

Prevention

Planned maintenance structure

Moving from run-to-failure to a planned regime sized against criticality — and against realistic spare-parts lead times, which in Brazil are a genuine constraint on strategy.

Analysis

Root cause on the top losses

Structured analysis on the few losses that dominate the Pareto, with countermeasures assigned to named owners and verified against baseline.

Quality

Quality loss reduction

Scrap and rework are OEE losses that most plants track in a separate system, so nobody sees the total. We consolidate them into one picture.

OEE TPM Autonomous maintenance MTBF / MTTR Pareto 5 Whys Ishikawa FMEA Criticality matrix
How It Runs

Measure honestly, then improve

1

Free operational diagnostic (48 hours)

We measure a sample of your lines ourselves and compare it against what your system reports. The gap between the two is usually the most valuable output of the whole diagnostic. No cost.

2

Fix the measurement

Taxonomy, rated speeds, collection routine, and who records what. Until this is stable, improvement work has no reliable baseline to be measured against.

3

Attack the dominant losses

Almost always a small number of failure modes drive most of the loss. We work those with the maintenance and production teams rather than spreading effort thin.

4

Install autonomous maintenance

Operators take on defined daily routines. This is a cultural change more than a technical one, and it needs the supervisor layer aligned first.

5

Verify against the original baseline

Same measurement method, same definitions. A gain that only exists because the definition changed is not a gain, and we will say so.

Operating in Brazil

Constraints that shape maintenance strategy here

  • Imported spare parts drive maintenance strategy more than theory does. When a critical component takes weeks to land, the correct answer shifts toward preventive replacement and local stocking, even where a purely predictive regime would be cheaper on paper.
  • Equipment tends to be older and heavily modified. Machines with fifteen years of undocumented adaptations do not match their manuals. Maintenance standards have to be rebuilt from the asset as it exists, not from the original documentation.
  • Most SME plants have no MES, and that is workable. Manual collection produces reliable OEE if the taxonomy is unambiguous and the routine is disciplined. We would rather prove the process manually before you invest in automating the data capture.
  • Energy cost and tariff structure affect scheduling decisions. Electricity pricing varies by contract and time of use, so production scheduling and load planning interact. Confirm the specifics with your energy supplier — we are not able to verify current tariff structures for you.
  • Maintenance is often staffed as a cost centre. Thin teams and reactive routines are common. Autonomous maintenance is frequently the only realistic path to preventive coverage without adding headcount.
Field Notes

Engagement examples

Client engagement summaries are shared on request, subject to confidentiality agreements. Ask us directly →
Questions

Questions about OEE and maintenance

How do you measure OEE without sensors or an MES?

Manual collection with an unambiguous taxonomy and a disciplined routine. It is less convenient than automated capture and, done properly, no less accurate. It also forces the definitional clarity that automated systems let you skip.

What OEE should we be targeting?

It depends entirely on your process type, product mix and asset age, and any consultant quoting a universal target number is selling something. What we commit to is an honest baseline and a Pareto of where the loss actually sits.

Our reported OEE is high. Is a diagnostic still worth it?

That is often exactly when it is worth it. A high reported OEE alongside missed delivery dates or unexplained overtime usually indicates a measurement problem rather than a performance one.

Will autonomous maintenance create friction with our maintenance team?

It can, if introduced as a transfer of work. We introduce it as a boundary definition — operators take defined routine tasks so maintenance can move from reactive firefighting to planned work. That framing matters.

Do you help select an MES or OEE software?

We can advise on requirements once your process and taxonomy are stable. We do not resell software and we have no vendor relationships, so the requirement list comes from your operation.

Get Started

Request Your Free Operational Diagnostic

Tell us about your operation in Brazil. We reply within one business day — no cost, no commitment.

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