A Taiwanese talc processor needed to upgrade their talc jet milling capability. Coating manufacturers were demanding finer talc—specifically in the 2–3 μm range—to improve gloss, barrier properties, and sedimentation resistance in high-performance paints and primers. The existing equipment could not produce a consistent particle size distribution.
The company turned to Epic Powder for a solution. The goal was clear: reliably achieve a D50 of 2.5 μm while preserving talc’s natural lamellar structure. Contamination‑free processing was also critical to maintain whiteness and purity for premium coating formulations.
After evaluating several technologies, the processor chose the Epic Powder MQW60 Fluidized Bed Jet Mill. Unlike conventional ball or hammer mills that use mechanical impact, this system grinds talc through particle‑on‑particle collisions driven by supersonic air streams. This self‑grinding action gently delaminates talc platelets without fracturing them, retaining a high aspect ratio—essential for reinforcement and barrier performance.
The MQW60 is equipped with a silicon nitride (Si₃N₄) classifier wheel. It offers exceptional wear resistance and maintains precise cut point stability even during extended operation with highly abrasive talc. Additionally, the system integrates a weighing module that continuously monitors feed rate and mill load. It ensures consistent grinding conditions and repeatable particle size distribution from batch to batch.
With the new jet mill from Epic Powder, the Taiwanese processor now supplies coating formulators with ultrafine talc that meets strict specifications. End‑users report improved gloss (35% increase in 60° readings), reduced sedimentation, and better corrosion resistance in salt spray tests.
This case demonstrates that for high‑value mineral processing, choosing the right talc jet milling solution directly impacts product quality and customer satisfaction.
Technical Parameters
Material: Talc
Particle Size: D50 of 2.5 μm
Output: 800kg/h
