... .8.Easy to operate, low noise(≤85dBA)Application fields1.High purity super hard material. Such as phosphor powder, TITANIUM DIOXIDE, silicon ... , aluminum, copper and other high purity pigment.2.Fine chemical industry, ceramics, abrasive and fire-resistant ... μm50-1000 kg/h257-300 kw Fluidizde Bed Jet Mill/air classifier LNJ series