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Overall Equipment Effectiveness measures equipment performance combining availability, performance, and quality. Identifies improvement opportunities.
公式
Availability = actual run time ÷ planned run time
ステップバイステップガイド
- 1Availability = actual run time ÷ planned run time
- 2Performance = actual output ÷ theoretical output
- 3Quality = good units ÷ total units
- 4OEE = Availability × Performance × Quality
解いた例
入力
80% avail, 95% perf
結果
72.2% OEE
避けるべきよくある間違い
- ✕Not including planned downtime in availability calculation
- ✕Using unrealistic theoretical maximums
よくある質問
What's good OEE?
Below 65% poor, 65-85% acceptable, 85%+ excellent; world-class manufacturers achieve 90%+.
What causes low OEE?
Equipment downtime, slow running speed, defects; typically 40% availability, 5% performance, 5% quality loss.
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