A leading quartz processing company in Shandong Province, China, required an ultra-fine grinding and sınıflandırma solution capable of producing high-purity quartz powder for electronics and photovoltaic applications. The target was to achieve a fine fraction with D97 ≤ 10 µm while simultaneously recovering a coarse fraction around D50 15-20 µm, with a stable system capacity of at least 800 kg/h.
After comparative testing of several European and domestic systems, the customer selected EPIC Powder’s integrated bilyalı değirmen + ITC-3 high-precision hava sınıflandırıcı system.
Key Results Achieved:
- Fine powder (target product): D97 = 9.8 µm, D50 = 4.2 µm
- Coarse powder (by-product): D50 = 15.20 µm
- System throughput: 800–900 kg/h (quartz, Mohs hardness 7, feed size ≤ 3 mm)
- Classification efficiency: ≥ 85%
- Specific energy consumption: 25% lower than the previous European brand system
- Fine powder whiteness increased by 2.1 points after classification
The ITC-3 air classifier features a horizontal high-speed turbine design with secondary air inlet and precision speed control (maximum 6000 rpm), ensuring extremely sharp particle size distribution and narrow distribution. The integrated frequency-conversion feeder and fully automatic PLC control allow one operator to manage the entire line.
Since commissioning in early 2025, the system has operated continuously for over 8000 hours with almost zero unplanned downtime. The customer reports that the ultra-fine quartz powder (SiO₂ ≥ 99.95%) fully meets the requirements of leading photovoltaic crucible and electronic-grade filler manufacturers. It significantly improves their market competitiveness.
This project once again proves that EPIC Powder’s ITC series air classifiers deliver European-level precision at a more competitive cost. This makes them the preferred choice for high-end quartz, feldspar, and other non-metallic mineral ultra-fine processing applications.
