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professional exhaust fan manufacturer, professional industrial exhaust fan, swung drop hammer opening device, CE certificate - details see: https://www.machineto.com/industrial-exhaust-fan-stainless-steel-blades-10175547

Industrial Exhaust Fan/Swung Drop Hammer Shutter Type/CE Certificated

Professional manufacturer of industrial exhaust fan for 7 years

Widely used in industries for ventilation

Material of components:
1.Frame:Galvanized steel sheet, one-off molded, anti-corrosive and durable,zinc thickness 180G/M2.Thickness: 1.0mm for the top and 0.8 for the other sides
2. Blade:6 pieces of mirror finishedstainless steel blades,attractive and durable with big air volume, passing the homeostasis test to ensure the air volume keeping the same as the very beginning during the operational life span, low noise, no distortion, no broken,Thickness: 1.2mm.
3. Motor:Siemens motor or Chinese motor, high efficient and energy-saving with CCC certificate. Protection class: IP55, Insulation class: F.The voltage, power, Hz and phase can be customized.

4. Shutter: Made of high strength hot-galvanized steel sheet, dustproof and waterproof.
Thickness: 0.45mm
5. Swung drop hammer:Made of high quality nylon, stable performance, guaranteeing the shutters open and close flexibly.
6. Protective net:Made of hard-drawn wire, designed as door-type, which is convenient for maintaining.
7. Belt impeller:Made of aluminium magnesium alloy by injection moulded, adopting more stiffening rib, processed by sandblasting, eliminating the internal stress, high intensity, low noise, long service life.
8. Belt Pulley:Made of aluminium-magnesium alloy by injection moulded,reducing the weight of blade and impeller, high corrosion resistance. Blast-sanding treatment for attractive appearance, eliminating internal stress to improve its own rigidity and stability, high strength.
9. Belt tensioner:Made of high quality nylon or aluminium-magnesium alloy, avoiding belt loosening or dropping off, extending service life and avoiding distortion, waterproof
10. Bearing:Imported double-row bearing,super mute, high intension and durable
11. Spring:Stainless steel
12. Belt:China famous brand belt, Mistubishi belt
13. Strict test criterion:Consist of airflow test, nose test, libration test, drive concentric test, blade RPM test, whole machine efficiency test, dynamic balance test, the thickness of the galvanized sheet test, the size of the spare parts test, etc.
14. Guarantee period:One year. Easy broken parts are offered free of charge during this period