Excellent precision sealing structure which is to prevent coarse particles from the grinder impeller mixing impeller end key internal contamination of the finished product, special multilayer design labyrinth structure, not only turning more maze adjustable gap, but also produce inlet vane Raymond assisted centrifugal force 6r, to prevent large particles from entering the labyrinth Raymond, sealed with excellent results. Practice has proved that the large particles in the maze of less than one hundred thousandth of the leak. But the "precision" Labyrinth of moisture material requirements more stringent (preferably ≤6%), the higher the moisture content of the material grade, the maze of small gaps easily Massachusetts, the impeller 85 Raymond resistance Swells unable to work long hours. Therefore, the design into a self-cleaning labyrinth structure, can automatically clean up the sediments within the maze so that it can be a long continuous operation. R-type Raymond mill after many years of practice and continuous improvement, its structure has improved steadily, with high efficiency, low energy consumption, small footprint, low capital investment and environmental pollution. Which it is widely used in the grinding process metallurgy, building materials, chemicals, mining minerals in areas such material, suitable for processing Mohs hardness of seven or less, and humidity below 6% of various non-explosive mineral 130 Raymond, such as gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin, bentonite, stone, bauxite, iron oxide red, iron ore, finished fineness of 613 microns ~ 440 microns (0.613 mm -0.44 mm), through the joint action analysis machine and fans can meet different requirements of users. Raymond machine, Lianyungang Raymond, Yuxin Senda Senda provided by Henan new heavy machinery Limited. Henan new Senda Heavy Machine Co., Ltd. (www.hnsdzg.com) strong, credible, in Zhengzhou, Henan crushing grinding equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yuxin Senda into the brilliant and you work for a better future!