This axial fan series has excellent performance, with diameter range from φ200 to φ900 mm and maximum air volume up to 25,000m3/h.This series of fans has been market tested over years and we have optimized product structural reliability, materials, and blade design, with themanufacturing process having been also upgraded. Now a new series of 3rd generation brand-new high-reliability axial fans has been developed and is available for customers’ applications.We own the independent intellectual property for the brand-new 3rd generation high-reliability series of axial fans. It has been developed by the R&D team at Dunli, with its appearance, aerodynamic performance and structural reliability having been significantly improved, when compared with general fans.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.