الوصف

Performance and characteristic
1,Frame using advanced automatic processing ,height precision.Extra-depth zinc coating frame ,corrosion resistance strong. 
2,High-strength aluminum alloy casting wheel ,the reasonable perspective of the type ,to reach the maximum air flow High-precision micro-computer-aided manufacturin system can make the best of its fans. 
3, Five rigorous quality testing procedures ,noise detection ,vibration testing ,concentric rotation performance testing,speed of blade testing and the whole fan efficiency detection .**0V special motor .CAD/CAM optimizing design. 

Parts in detail
1.MuHe fan blade is special designed for top grade efficiency which made of Krupp stainless steel by punch forming. Large air volume, no deformation, no broken, no dust, attractive and durable. Thickness 1.2mm, surface finish BA grade.
2.Both China famous motor and Siemens motor are available. Motor voltage and frequency can be customized.  Chinese famous motor OEM by special design for fan, the first put in the phase lack protection device which would power off when shortage of electricity. Motor protection grade IP*5, insulation class F grade.
3.Using high strength nylon swung drop hammer opening device to ensue the shutters opening and closing flexibly.
4.Fan belt pulley and flange are made of high strength aluminum-magnesium alloy by die-casting. Light weight, lower vibration. Blast-sanding treatment for attractive appearance, eliminate internal stress to improve its own rigidity and stability.
5.Beltsare Korea Dongil brand, ensure the long service life, maintenance free. From ***0 the first adopt Type B belt which is 3times longer service life instead of type A.
6.Fan bearing adopts imported double-row bearing with special waterproof design, water can’t enter. High strength, lower noise, maintenance free and long service life.