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DJF(e) series Double-door Cone Fan(Butterfly Cone Fan)
  
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Using advanced front double door opening device, small wind resistance, good sealing, high efficiency, lengthened cone design improve exhaust power.
 

Fan double doors closed with the rubber sealing which effectively avoid air backflow when start fans at different time. Greatly improve the operation efficiency by 15-20% compared with the same power fan.
 

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

Fan blades are adjusted by intelligent dynamic-balance tester, ensure the fan smooth running, lower vibration, less noise, increase stability.

The first adopt Type B belt which 3 times longer service life instead of type A.

Hot-dip galvanized blade support and safe net ensure never rust.

Complete new CNC production line improved fan quality up to top grade, aesthetic appearance.

Double-door Cone Fan(Butterfly Cone Fan) Dimensions
 

Double-door Cone Fan(Butterfly Cone Fan) Technical paramenters

Double-door Cone Fan(Butterfly Cone Fan) Air Flow Curve

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