A leading manufacturer of high-purity precipitated silica and fumed silica needed to produce an ultra-fine grade with strict particle size control for advanced electronics and silicone rubber applications. The target specification was D90 ≤ 10 µm while maintaining maximum production capacity and excellent particle size consistency. Epic Powder recommended one set of MQW35-40 fluidized bed opposed jet mill system with high-precision classifier for grinding silica.

Advantages of MQW Series
Single-pass achievement of D90 = 9.8 µm at 360 kg/h, exceeding the original target of 300–320 kg/h on competitor equipment.
Narrow particle size distribution resulting in superior reinforcement performance in silicone rubber and higher transparency in optical applications.
20–25% lower energy consumption compared to previous mechanical impact mills previously used.
Fully automated closed-loop system with minimal operator intervention and consistent batch-to-batch quality.
Customer Feedback

Jet Mill MQW35-40 by Epic Powder has significantly improved the customer’s product quality and production efficiency. Achieving 360 kg/h at D90 9.8 µm in a single jet mill was previously unthinkable with their old equipment. The stability and low maintenance have made this their go-to solution for all ultra-fine silica grades.
Epic Powder continues to be the preferred partner for customers demanding the perfect combination of ultra-fine particle size, high throughput, and energy efficiency in jet milling applications.
For similar ultra-fine silica grinding challenges, contact Epic Powder today.
Technical Parameters
Raw material: Precipitate Silica (SiO₂)
Particle size: D90 ≤ 10 µm
Output: 360kg/hr