Model WFJ Series Dust Collecting Fine Crushing Set is a kind of advanced crushing machine based on both absorbing and digesting the technology of other country and according with Chinese practical situation. Compared with other domestic crusher, this crushing set has the characteristics: technology stabilization; high producing-efficiency; beautiful appearance; changeable mesh; and low temperature at the crushing chamber. This crushing set is especially suitable to crush the sugar, spice, herb and other heat-sensitive material. This crushing set is made up of crushing part, pipes, discharging part, dust-collecting part and electronically-controlling cabinet. With winnowing, no screen, there is a grading fan in the crushing chamber to control the fineness of material and avoid the excessively crushing. The powder is conveyed to the cyclone separator by negative pressure, discharge from the gate blower, and dust is filtered and recovered through the dust-collecting cabinet. This crushing set is the ideal fine crushing equipment widely used in pharmaceutics, foodstuff, and chemical as so on.