500 kg/hr @ 105 psi, feed rate 5-500 kg/hr initial particle size 1mm, final particle size 0.5-10 micrometer. Mill size 500mm (20"), sanitary design, top opening: 1-75mm, side openings: 1-50mm with a 100mm offshoot, 1-50mm, Suitable for any friable or crystalline material and those materials that must remain ultra-pure well as heat sensitive products. High pressure air is introduced into the cylindrical grinding chamber through interchangeable nozzles. This creates a high speed vortex into which the material to be ground is introduced. No moving parts or grinding media are inside the mill chamber. Size reduction is the result of the high-velocity collision between particles of the process material itself. The chambers is designed to allow re-circulation of over-size particles until the correct size for discharge.