Daily Use
Understanding OEE (Overall Equipment Effectiveness)
4 min read
OEE is a 0–100% score that tells you how well your machines ran versus how well they could have. World-class discrete manufacturing is around 85%; most plants start far below and grow over time.
The three factors
- Availability — planned run time minus stops, divided by planned run time. Answers: was the machine running when it was supposed to be?
- Performance — actual output speed versus rated speed during run time. Answers: when it was running, did it run at full speed?
- Quality — good parts divided by total parts produced. Answers: of what came out, how much was acceptable?
How DOVA calculates it
DOVA takes run-time signals, downtime events captured at the station, and quantity completed vs. rejected data — and multiplies them: A × P × Q. No spreadsheet. No typing at the end of shift.
OEE is only useful if the inputs are trustworthy. The single most important habit for an operator to build is logging downtime with the real reason, the moment it happens.