Background
W-type filters, widely used in critical cleanroom environments, are typically manufactured to H13 and H14 standards according to ISO 29463.
Due to their high filtration efficiency, each filter must undergo strict individual leak detection to ensure product quality and compliance.
However, the customer faced a major challenge:
Traditional leak detection systems are designed for flat panel filters, not complex structures like W-type filters.
Challenge
The unique V-bank (W-type) structure significantly increases testing difficulty:
- ❌ Irregular airflow distribution across filter surfaces
- ❌ Complex geometry makes full coverage scanning difficult
- ❌ Existing equipment lacked precision and efficiency
- ❌ Manual adjustments increased testing time and inconsistency
As production demand increased, the limitations became more critical:
- Testing speed could not keep up with order growth
- Risk of undetected leaks due to insufficient scanning coverage
Solution
To solve this problem, the customer turned to SCPUR for a customized solution based on:
👉 SC-L8023 Automatic Scanning Test System
After in-depth analysis, SCPUR engineers implemented targeted hardware and software optimizations, developing a dedicated scanning strategy for W-type filters.
Phase 1: Customized Single-Probe Solution
- Optimized scanning path for W-type geometry
- Improved detection accuracy for complex filter surfaces
- Met initial production requirements
Phase 2: Multi-Probe Upgrade for High Throughput
As the customer’s business expanded, testing efficiency became a bottleneck.
SCPUR upgraded the system to:
- ✅ 4 scanning probes working simultaneously
- ✅ 3× increase in scanning efficiency
- ✅ Significant reduction in leak detection time
- ✅ Improved consistency and repeatability
Results & Field Performance
After the upgrade, the customer achieved:
- ✔ Fast and accurate leak detection for every W-type filter
- ✔ Stable performance under high production demand
- ✔ Improved overall production efficiency
- ✔ Full compliance with HEPA filter quality requirements
The scalable design allows the system to adapt to future capacity expansion without requiring additional equipment investment.
Conclusion
This case demonstrates SCPUR’s ability to deliver:
- Customized solutions for complex filter structures
- Scalable systems aligned with customer growth
- High-efficiency testing without compromising accuracy
In a highly competitive filtration market, advanced testing capability is a key differentiator.
👉 SCPUR continues to provide reliable and flexible filter testing solutions, helping customers maintain superior quality control and stay ahead of the competition.
