1. SANHE  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. Centrifugal shutter system open the shutters at complete 90 degree ti ensure the lowest air resistance and biggest air volume.When close,the sealing can efficiently block light and wind into the poultry farm house.As the frist one adop high quality nylon PA66 to ensure the long service life.The fasteners of centrifugal system all are copper rivets,wear-resisting and no rust,flexible.Guide rod is made of 304 stainless steel,ensure the high strength,no dust,reduce frication.

3.Shutter fixed parts are made of high quality nylon which ensure long service life,open flexibly.

shutter are made of galvanized sheet with thickness0.8mm and 1.5mm,ensure shutters no deformation,running stable.

4.Belts are Japanese Mitsubishi brand,ensure the long service life,maintenance free,From 2010 the frist adopt Type B belt which 3 times longer service life instead of type A.

5.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.

6.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 frist put in the phase lack protection device which would power off when shortage of electricity.Motor protection grade IP55,insulation class F grade.