An axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate. The flow is axial at entry and exit. The fan is designed to produce a pressure difference, and hence force, to cause a flow through the fan. Used in condenser low noise AC and EC axial fan series has excellent performance, with diameter range from φ200 to φ900 mm and maximum air volume up to 24,000m3/h. This series of fans has been market tested over years and we have optimized product structural reliability, materials, and blade design, with the manufacturing process having been also upgraded. This external rotor fan series has a compact structure, operates reliably and is both energy saving and efficient. It is designed with low noise, a long service life, and is easy to install.