Product Feature                      

1. Big air volume

2. Low noice when working

3. Long life span

4. Good after-sales service

Specification for Swung Drop Hammer Exaust Fan        

	Fan blade is made of Krupp stainless steel by punch forming. Thickness 1.2MM. Special blades shape design ensure large air volume and keep it the same all the time No deformation,no broken
	Fan belt pulley is made of strength  aluminum-magnesium alloy by die- casting.High corrosion resistance. Special three reinforced ribs pulley design.Blast-sanding treatmen for attractive apperance,eleminate internal stress to impove its own regidity and stability
	Protection grade IP55  Insulation class grade F   Both Chinse famous motor and      Siemens motor is optional.  For Chinese motor ,it can put off power when shortage of electricity.
	Fan bearing adopts imported double-row bearing with special waterproof design. High strength,low noise,maitaince free and long service life
	Using high strength nylon swung drop hammer openning device. Ensure the shutter opening and closing flexibily
	Belts are Japanese Mitsuboshi brand. Ensure long service life and maitaince free

Different size available                                                             

Air flow curve                                                                              

Good match                                                                                      

This match is fit for blackout green house.