Overall Equipment Effectiveness OEE Total Available time 24
Overall Equipment Effectiveness (OEE) Total Available time= 24 / 7 (168 hours per week) (1) Shift pattern choices Actual Running Time Downtime Losses World Class Availability (2) Change-overs (3) Breakdowns (4) Planned Maintenance Actual Running Time (90%) Total Time Available Rate Actual Output in Running Time Speed Losses (5) Speed Losses compared to BDP (6) Minor stoppages (< 30 seconds) Actual Output (95%) Possible Output in Actual Running Time Quality Good Quality Losses Output (7) Quality defects - scrap (8) Start-up / Change-over losses Availability x Rate x Quality = OEE World Class Manufacturing OEE = > 85% Good Output All (Actual) Output (99%)
How to calculate… 3% 10% OEE = 35% x 90% x 97% = 31% 65% 69% x 90% 97% x = 35% 31% Actual Output = 45, 481 x Scrap / waste / NC = 1, 364 x Good output (beyond QC) = 44, 117 x Availability Quality Rate Total Time Available = 1, 440 minutes Downtime Losses - 2 Shifts i. o 3 Shifts - 4 Changeovers - 56 Stoppages - Planned Maintenance Total = = = 480 minutes 67 minutes 373 minutes 16 minutes 936 minutes Actual Running Time = 504 minutes OEE Quality = 44, 117 / 45, 481 (*100%) = 97% Actual Running Time = 504 minutes BDP Output per minute = 100 x Actual Output per minute = 96 x Possible Output = 50, 400 x Actual Output = 45, 481 x Availability = 504 / 1, 440 (*100%) = 35% Rate = 45, 481 / 50, 400 (*100%) = 90%
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