The technology research and development team of Rotarysun consists of a senior expert has engaged in fans industry about fifty years and many young engineers with more than ten years of technical experience in fans. Rotarysun keeps close cooperation with many famous fans company around the world to exchange innovative technology of fans equipment and other relevant areas, such as Robinson, Howden, Venti Oelde, Flowcare, etc. In the meantime, Rotarysun has established Magnetic Suspension Bearing Project Group with SKF in Sweden. Rotarysun also maintains cooperation with Xi’ an JiaoTong University and Northeastern University, and the test site had been extablished. Our cooperation give the advantage of the combination of production-study-research into full play. It is conductive to enhance innovation ability and promote competitiveness of Rotarysun.