OEE Calculation Example
Plant Applications performs a variety of calculations in order to arrive at OEE rates.
This is a sample calculation, with time shown in minutes. See the Glossary and the Time Categorization topics for explanations of terms:
|
Configuration Data |
|
|
Ideal Rate |
10 (units per min) |
|
Actual Production Data |
|
|
Total Production |
1050 units |
|
Good Production |
1043 units |
|
Waste (Defects) |
7 units |
|
Time Categorization |
Minutes |
|
Calendar Time |
125 |
|
– Unavailable Time |
- 0 |
|
= Loading Time |
= 125 |
|
– Unplanned Downtime |
- 5 |
|
= Gross Running Time |
= 120 |
|
– Performance Downtime |
- 25 |
|
= Run Time |
= 95 |
|
– Speed Loss (Ideal Production – Total Production) / Ideal Rate) |
- 15 |
|
= Duration at Design Speed |
= 80 |
|
Ideal Production (Ideal Rate * Gross Running Time) |
1200 |
|
|
|
|
Availability Rate = (Gross Running Time / Loading Time) X 100 |
= 96.00% |
|
Performance Rate = (Total Production / Ideal Production) X 100 |
= 87.50% |
|
Quality Rate = (Good Production / Total Production) X 100 |
= 99.33% |
|
OEE = Availability X Performance X Quality = .96 X .8750 X .9933 |
= 83.44% |