Total Productive Maintenance (TPM) is a maintenance philosophy aimed at eliminating production losses caused by equipment issues.
In simple terms, TPM focuses on keeping equipment operating at maximum capacity, producing expected quality products, and ensuring no unscheduled stops.
In essence, TPM is a system for optimizing maintenance and achieving perfect production efficiency.
Main Goals of TPM
- No short stoppages or sub-optimal production rates
- No defects
- No unplanned downtime
- No accidents
8 Pillars of TPM
TPM is built on an 8-pillar approach, covering every aspect of industrial maintenance.
These pillars aim to eliminate the Six Big Losses in production and enhance equipment performance.
With the rise of Industry 4.0, TPM integrates advanced technologies such as Machine Learning and IoT to further enhance maintenance efficiency.
Modern Enhancements with Industry 4.0
- Predictive Maintenance: Using Machine Learning for ‘Just-in-Time’ maintenance.
- Predictive Quality: Real-time data and ML-driven Root Cause Analysis.
- Process Optimization: Maximizing production throughput by preventing process disturbances.
- Remote Monitoring: Gaining insights into equipment performance to maximize Overall Equipment Effectiveness (OEE).
Six Big Losses
The Six Big Losses framework identifies inefficiencies in production that directly impact profitability.
These losses are closely linked to Overall Equipment Effectiveness (OEE) — reducing them leads to improved operational efficiency.
The Six Big Losses
- Equipment Failure (Unplanned Downtime)
- Setup and Adjustments (Planned Downtime)
- Idling and Minor Stops
- Reduced Speed
- Process Defects (Quality Losses)
- Reduced Yield (Startup Losses)
By addressing these losses, manufacturers can significantly improve their OEE scores and overall productivity.
Overall Equipment Effectiveness (OEE)
OEE measures how well a manufacturing operation is utilized compared to its full potential during scheduled production time.
It identifies the percentage of manufacturing time that is truly productive.
An OEE score of 100% means:
- You are producing only good parts (100% Quality)
- As fast as possible (100% Performance)
- With no stop time (100% Availability)
How OEE Helps
OEE provides a benchmark or baseline for measuring performance and tracking progress in eliminating waste from manufacturing processes.