The invention relates to an apparatus for producing monodisperse powdered rubber and includes an extruder and individual conveying, grinding and discharge sections with respective cooling units corresponding thereto. The cooling units are arranged outside of the extruder and receive the grinding stock...http://www.google.es/patents/US5273419?utm_source=gb-gplus-sharePatente US5273419 - Apparatus for producing monodisperse powder from rubber or rubber articles
Apparatus for producing monodisperse powder from rubber or rubber articles