Ro-Star Vertical Stirring Mill

The Ro-Star™ is a vertical stirred media mill developed by Maelgwyn Mineral Services (MMS) and manufactured in collaboration with Ersel Heavy Machinery for ultra-fine grinding applications. The technology has been developed in response to the industry’s increasing move away from conventional ball milling in ultra-fine duties, where energy efficiency and effective stress application reach practical limits, and toward stirred milling solutions better suited to these requirements. It is possible to grind down to 10–25 µm while feeding 300 µm material to the mill. The technology is intended for integration into modern comminution circuits where ultra-fine product sizes, energy efficiency, and wear performance are critical. Ongoing industrial placement and operation will continue to define operating envelopes and support broader commercial deployment of the Ro-Star™ mill family.