1, Shanxi fan vibration severe: ① fan shaft and motor shaft is not parallel, pulley misalignment; ② casing and impeller inlet or friction; ③ basis or impeller loose rivet deformation; ④ impeller or impeller loose rivet deformation; ⑤ impeller shaft plate hole and the shaft with loose; ⑥ leaves have fouling, dirt, abrasion or bending axis of the rotor imbalance; ⑦ fan inlet and outlet pipe installation poor resonance; ⑧ chassis bracket, bearing bracket, bearing and bearing cap such as loose coupling bolts. At present, China's Shanxi fans enterprises lack awareness and ability of independent innovation and basic research, which restricts the development of China's Shanxi wind turbine technology, and to change this situation proof axial fans, we must thoroughly study the characteristics and requirements of the user industries, combined with the actual needs of the development of a high level of product exhaust fan, while the Roots blower, but also pay attention to basic theoretical research work, so as to allow our industry in Shanxi fans have a better development in the near future. First, in terms of design, widely used by research impeller, volute and other components to further improve manufacturing precision, and strive to make all kinds of Shanxi average fan efficiency increased by 5% to 10%. Currently, the most advanced centrifugal fan Shanxi thanks to three-dimensional flow impeller, the maximum efficiency of up to 87%, the highest efficiency axial fan has reached more than 92%. However, due to the high cost, the application has not been large-scale promotion. _ Nagorye axial fan blower (certified) _ Jinzhong, Shanxi nagorye fan blower is provided by a limited liability company. Shanxi nagorye Blower Co., Ltd. (www.sxgfj.cn) (www.sxfjgs.com) is an industry leader in Shanxi Xinzhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. In nagorye blower leadership with the staff warmly welcome all inquiries negotiations to create nagorye blower a better future. You can also access (www.sxfjgs.com/supply_details_40061790.html), for more information about the company.