Augos Factory / Learn / For students and lecturers
For industrial engineering and operations courses
Teach OEE on stops that really happened.
Textbook OEE problems use tidy numbers. South African lines do not. We build worked problems from real South African stop records. Students practise on the kind of record they will meet in their first plant job.
What we offer
Three ways to bring a real line into class
Worked problems
OEE, MTTR, Pareto and changeover problems built on real stop records, with model answers for lecturers.
Guest lectures
A manufacturing specialist on measuring a real line, in person in the Western Cape or online, on request.
Final-year projects
Research data for theses and design projects can be discussed on request, under a short data agreement.
A worked problem
From a stop log to an OEE score
Students take one shift's stop log, rated speed and good-unit count, calculate availability, performance and quality, then rank the three biggest losses. The model answer shows why interruptions sit inside performance, not availability, and how 46 stops nobody logged can cost more than the worst breakdown.
Problem sheet, one shift
IllustrativeOne filling line, 06:00 to 14:00: a planned break, 5 stops in the log, and 46 interruptions nobody logged.
In the stop log · 6
Interruptions under 3 min, not logged · 46
| # | Start | Stop log | Min |
|---|---|---|---|
| 1 | 07:12 | Filler jam | 6 |
| 2 | 08:40 | Label roll change | 9 |
| 3 | 09:30 | Break (planned) | 30 |
| 4 | 10:41 | Capper breakdown | 24 |
| 5 | 11:50 | Waiting for preforms | 12 |
| 6 | 13:10 | Conveyor blocked | 15 |
Rated speed 120 units a minute · units made 38,400 · rejects 620 · interruptions 46, 41 min in total.
- Availability: what share of the 450 planned minutes did the line run?
- Performance: against 120 a minute, how much did it make while running?
- Quality, then OEE.
- Rank the three biggest losses in minutes.
Show the model answer
480 paid minutes, by where they went
- Planned break 30 min
- Logged stops 54 min
- Waiting for material 12 min
- Interruptions 41 min
- Speed loss 23 min
- Quality loss 5.2 min
- Good output 314.8 min
| Availability | 384 run min ÷ 450 planned min | 85.3% |
| Performance | 38,400 ÷ (384 × 120). Interruptions take 10.7 points, speed 6.0 | 83.3% |
| Quality | 37,780 good ÷ 38,400 made | 98.4% |
| OEE | 85.3% × 83.3% × 98.4% | 70.0% |
The three biggest losses: interruptions 41 min, the capper breakdown 24 min, speed 23 min. None of the 46 interruptions is in the stop log, yet together they cost more than the worst breakdown. Standard OEE files them under performance, not availability.
Illustrative data, not a customer.
Request
Ask for the data you need
Lecturers and supervisors, use your institutional email.
Questions
For students, answered
Can I cite the research in my thesis?
Yes. The research page gives a citation for the findings and the method. How to cite ›
Is the data from real plants?
Yes, from South African production lines, with site, customer, product and people removed.
Bring a real line into your course.
Worked problems and guest lectures for South African universities and colleges.
- Built on real stop records
- Model answers for lecturers
- Free for teaching
Working in a plant? A manufacturing specialist replies within two business hours to set a 30-minute call.