DJF(a)series Swung Drop Hammer Exhaust Fan
Blades:
- Krupp stainless steel by punch forming, no dust, attractive and durable.
- Special blades shape design ensure large air volume, no deformation, no broken, keep air volume same all the way.
- Every blades are adjusted by intelligent dynamic-balance tester, Each blade tolerance weight controlled within 1g. Ensure the fan smooth running, lower vibration, less noise, increase stability.
- Blade material have stainless steel, galvanized sheet, aluminum alloy, FRP for option.
5.Thickness 1.2mm, surface finish BA grade.
Belt pulley and Blade hub:
- Made of high strength aluminum-magnesium alloy by die-casting which reduces the weight of blade impeller complete, high corrosion resistance.
- Special three reinforced ribs pulley design. Blast-sanding treatment for attractive appearance
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Motor:
- China famous motor / 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 : IP55
- Insulation class: F grade.
France Imported Bearing:
- Imported double-row bearing with special waterproof design, water can't enter.
- High strength, lower noise, maintenance free and long service life.
Belt:
Japanese Mitsuboshi brand,, ensure the long service life, maintenance free.
Hammer Foot:
High strength nylon swung drop hammer opening device to ensue the shutters opening and closing flexibly.
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
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Audited Supplier 
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