... circulation system.Scope of application of air classifier:---material particle size: from 200mesh to 6000mesh, which ... of thousands of dry powdery material.such as the following.OrderTypematerials1High hardness materialCarborundum,boron carbide,alumina,,zircon ... zinc powder,copper powder,etc5Other materialsCeramic material,electronic material,rare earth material,phosphor,etc.Technical parameters of air ...