Nitrogen Protection Air Classifying Jet Mill Features: It has broad application field. Variable inert gas can be chosen as grinding protection, depending on the features of flammable, explosive or easily oxidized powder; Inert gas can be re-cycled with a small loss; With optimized structure and improved performance, this mill can disperse aggregate ultrafine powder and polymers effectively; Operation is under sealed negative pressure, dust-cleaning is automatic by pulse. Using new filter materials makes the collecting efficiency rise up to 99.9%; PLC intelligent contro…