Axial fans. The axial air flow into the fan impeller, approximately cylindrical flow in the axial direction on the surface. Such fan including axial fan, axial blowers and axial compressors. (3) rotating fan. Use of the rotor rotates to change the chamber volume work. Common varieties Roots blowers, rotary compressors. According to the flow direction of the fan airflow into the impeller into: axial fans, centrifugal fans and mixed flow (Francis) fan. Axial fans at startup where fan factory price low, the motor current will be 5-6 times higher than the best-rated wucheng fan manufacturers, not only will affect the life of the motor and consume more power. System design on motor selection will leave a margin where the best manufacturers of wind turbines, the speed of the motor is fixed, but in actual use, sometimes you want to run at a lower or higher speed, and therefore frequency transformation is very necessary. Drive motor soft start can achieve by changing the frequency of the input voltage equipment to achieve the purpose of energy-saving speed, and give the device to provide overcurrent, overvoltage, overload protection. Wucheng cheapest fan manufacturers | Hao Yang air conditioning equipment (certified) | Heze fans provided by the Texas Air Conditioning Equipment Co., Ltd. Hao Yang. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hao Yang air conditioning equipment in leadership with the staff warmly welcome all inquiries negotiations to create Hao Yang air conditioning equipment a better future.