iSixSigma

Overall Equipment Effectiveness (OEE)

Definition of Overall Equipment Effectiveness (OEE):

OEE = Availbility * Performance Rate * Quality rate
where Availabilty = (Calender Hours – Planned losses -Unplanned lossed) / Calender hours

Performance rate = Operatig Efficiency * Rate Efficiency
where ,
Operating Efficiency=(Available hours -Losses beyond equipment/plant’s control

Available hours
Rate Efficiency = Actual output/design output

Quality Rate = OK product tonnage/Total input material

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