Vertical roller mill is also called high pressure hanging roller mill which is the earliest start superfine powder processing equipment, after years of development, it continue to be the optimization and upgrading. Compared with other grinding millt, there are six unparalleled advantage. To Small and medium-sized enterprise,the SBM vertical roller mill is a good choice.Compared with other grinding mill under the same dynamic conditions，the production increased by 20-30%, and the vertical roller mill grind under the action of the spring in the high-pressure 800 - 1200K.Mohs hardness of less than 7 mineral materials can be crushed. Product size is a wide range of particle size of the rough up to 0.95 mm (20 mesh), the particle size is generally up to 0.033 mm (425 mesh) and a small number of the most fine materials up to 0.013 mm (1,000 head) Dust the effect fully meet national standards for dust emissions.