OEE – Overall Equipment Effectiveness for High-Performance Industries
O OEE (Overall Equipment Effectiveness), or Overall Equipment Effectiveness, is one of the most comprehensive indicators for measuring the real effectiveness of production processes.
On analysing Availability, performance e Quality, oh, OEE allows identification of losses, optimisation of resources, and an increase in industrial competitiveness.
This is a critical parameter for organisations seeking reduce operating costs, Improve the quality of the products e ensure deliveries within the agreed deadlines.
Measure and monitor OEE consistently translates into more informed decisions and sustained continuous improvement.
OEE stands for Overall Equipment Effectiveness. It is a key performance indicator that measures how well a manufacturing operation is utilized by calculating the percentage of planned production time that is actually productive. It is calculated using three factors: 1. **Availability:** This measures the losses due to downtime (planned and unplanned stops). * Formula: `Availability = Run Time / Planned Production Time` * `Run Time = Planned Production Time - Downtime` 2. **Performance:** This measures the losses due to slow cycles or minor stops. * Formula: `Performance = (Ideal Cycle Time * Total Count) / Run Time` * `Total Count = Actual number of pieces produced` * `Ideal Cycle Time = Theoretical minimum time to produce one piece` 3. **Quality:** This measures the losses due to defects or rework. * Formula: `Quality = Good Count / Total Count` * `Good Count = Total Count - Defective Parts` The OEE is then calculated by multiplying these three factors: **OEE = Availability × Performance × Quality**
The calculation of OEE result of the multiplication of three factors:
Availability – effective time in which the machine is producing, considering planned and unplanned stoppages.
Performance – comparison between actual and ideal production speed.
Quality Percentage of good units produced relative to the total.
Practical example:
If a machine has 90% for availability, 95% for performance and 98% for quality, its OEE it will be
OEE = 0.90 × 0.95 × 0.98 = 83,79%
This figure indicates that there is scope to optimise approximately 16% of production capacity.
Key benefits of monitoring OEE
Reduction of unplanned stoppages by identifying the main causes.
Increased productivity with production cadence optimisation.
Quality improvement upon detecting patterns of defects.
Resource optimisation Human and technical.
Data-driven decision-making, not in estimates.
Greater predictability for delivery and maintenance planning.
OEE and continuous improvement
O OEE is a fundamental tool in Lean Manufacturing and no TPM (Total Productive Maintenance), allowing preventive action.
Companies that implement continuous monitoring can identify small losses – such as micro-stoppages, excessive setup times, or speed variations – which, when accumulated, have a significant impact on productivity.
Integration with MES systems
The use of OEE integrated with MES (Manufacturing Execution System) systems, such as KORA Productivity da INFOS, further enhances the results.
With this integration, data collection is automatic, eliminating manual errors and providing real-time reports for managers and production teams.
This allows:
Monitor multiple production lines simultaneously
Generate immediate alerts for anomalies
Compare performance between shifts, machines or production units
Define evidence-based corrective actions
Practical application cases
Textile and Clothing Sector
O OEE helps to identify bottlenecks in cutting or weaving machines, reducing downtime and raw material waste.
Manufacturing Industry
Allows you to monitor the efficiency of plastic injection lines, moulds and metal-mechanical processes, optimising the production cycle.
Food Industry
Monitor critical equipment to ensure quality standards and meet strict delivery deadlines.
Implement OEE with INFOS
A INFOS Develop and implement monitoring solutions OEE tailored to the reality of each client, integrated with ERP and MES.
We combine cutting-edge technology, specialist consultancy e industrial experience to ensure measurable gains in efficiency, quality and profitability.
Contact Us and discover how the OEE can transform your company's productivity and competitiveness.
