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A field guide for plant and finance teams · Manufacturing performance platform · MES, OEE, CMMS & AI Find your hidden factory in 30 days

A 7-step method to put a price tag on every production loss and recover output from the equipment you already have, built on OEE practice from R.C. Hansen and lean continuous improvement.

Why this matters7 steps · 4 weeks

Your team talks in minutes. Your CFO decides in euros.

Average plants run at about 60% OEE; world class for discrete lines is about 85%. The gap is your hidden factory: capacity you already paid for.

The method

Seven OEE steps, four weeks

Week 1 · Step 1

Measure true OEE with three numbers

Scheduled time, good units and the ideal rate. Nothing else. If your OEE doesn’t match what actually ships, trust the lower number.

OEE = (good units ÷ ideal rate) ÷ scheduled time

Example: 4,362 good units ÷ 4 per minute = 1,090 minutes of perfect production, in 1,830 scheduled minutes. OEE 59.6%

No ideal rate? Use the best 4 hours of your last 400. Method and example: R.C. Hansen, Overall Equipment Effectiveness.

Week 1 · Step 2

Classify every minute. No “other”.

A minute with no reason can’t be priced, and a loss with no price won’t be fixed. OEE plus every loss must add up to 100% of scheduled time.

OEE 59.6%Downtime 14.2%Speed loss 9.3%Planned stops 9.3%Scrap 4.3%Induced stops 3.3%

Hansen’s 40-hour example. If the parts don’t add up to 100%, a loss is hiding.

Week 1 · Step 3

Start at the bottleneck

A minute lost at the bottleneck is a minute lost for the whole plant. A minute lost elsewhere may cost nothing.

  • Find the step that sets the pace for the line (sample: capping at 100/min between filling at 140 and packing at 160).
  • Ask before every project: if this step gets better, will plant output or profit move?
  • If not, work somewhere else.
Week 2 · Step 4

Put a price tag on every loss

You only need your selling price and gross margin per product.

  • Revenue at risk = lost units × selling price
  • Profit impact = lost units × gross margin
  • Cost of downtime = labour and overheads while the line waits

Sample: 20 units a minute, €2.40 a unit, 32% margin, €148 an hour labour and overheads. €1,070 per hour stopped

Week 2 · Step 5

Rank by money, not minutes

Slow running rarely makes the morning meeting. Priced per year, it often beats the stop everyone remembers.

Slow running after restarts€165,888

Unplanned stop: filler jams€154,022

Changeover overruns€102,682

Scrap: label defects€33,178

Sample data, profit impact per year. Ranked by minutes stopped, filler jams would have looked like the priority.

Week 3 · Step 6

Pick no more than three losses

Finish them fast. Each one gets the same four parts. Look for the cause in the process, not the person.

EvidenceStop codes, operator notes, the timeline
OwnerOne name, not a department
ActionWork order, SOP update or training
Verified resultChecked against production data
Week 4 · Step 7

A fix counts when output moves

Not when the task is closed. Compare the loss before and after, in units and in euros: plan, do, check, act.

  • Can you sell the extra output? Then the gain is profit.
  • Can’t you? It comes back as shorter shifts and less overtime.
  • Then go back to step 1 with the next loss.

Download the full guide

10 pages with worked examples and a 30-day checklist. PDF for reading, PowerPoint for your team meeting.

Your 30-day checklist

Find the money first. Then fix it.

  • Week 1: true OEE on the bottleneck, every minute classified
  • Week 2: a price tag on each loss, ranked in euros
  • Week 3: top three losses, each with an owner and an action
  • Week 4: results verified with production data, reported in euros

More in the loss price tag toolkit

Keep going: price, prove, recover

Calculator€0 · 3 min

What does one minute of downtime cost on your line?

Five numbers, then every loss ranked by euros, not minutes.

Open the calculator
Proof story€0 · 5 min read

OEE from 20% to 62% in three months

80 CNC machines in 6 weeks, with no PLC changes and no production stops.

Read the story

FAQs

What is the hidden factory?

The hidden factory is the capacity your plant has already paid for but loses to stops, slow cycles, changeovers and scrap. It is the gap between your actual good output and what your equipment could make in the scheduled time.

How do I measure true OEE?

Divide good units by the ideal rate, then divide by scheduled time. You only need three numbers: scheduled time, good units and the ideal rate. OEE plus every loss must add up to 100% of scheduled time.

Is the guide free?

Yes. Leave your name and work email once and download it as PDF or PowerPoint.

See it on your own lines

Every loss priced in real time: book a live demo

Bring one line and one week of stops. We'll show you what they cost in Fabrico's financial impact module and which loss to fix first.

Or start with a pilot, in four moves

  1. 1Connect one representative line
  2. 2Measure its losses in money
  3. 3Act on the highest-value ones
  4. 4Prove the recovered value

A pilot site is operational in days, with minimal disruption to your teams.

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