FJ48-71A Ventilation Fan

1. Optimized design, 2. Big air volume, low noise, litter energy-lose, 3. Stable running,steady long-lasting circulation.

I. Brife introduction of FJ48-71A ventilation fan:

1. It is researched and developed based on the latest advanced fan technology of Germany.

2. Its impeller and pulley are both made of aviation magnesium alloy/stainless steel.

3. It first adopts B-groove V-belt wheel, making air volume more strong.

4. Its chassis is made of thickened galvanized Plate.

5. Its shutter is made of one-time punch forming stainless steel, and adopts swung drop hammer

    institution, so opegastightness when it n and shut needs no power.

6. It has strong gastightness when it stops.

7. It has reasonable overall design, compact structure and beautiful appearance.

8. It has features of high efficiency, large air flow, low noise, smooth operation, uniform flow and 

    maintenance-free in period of use.

9. It can remove dry and hot air, humid air and ammonia, and supply fresh air to poultry house.

II.Work principle of FJ48-71A ventilation fan:

 

III. Features of FJ48-71A ventilation fan:

1. Outer frame adopts advanced processing technology of CNC bending machine, CNC plate 

    shearing machine and numerical control machine. Being made of specially thick galvanized 

    sheet, it has strong corrosion resistance.2. Self-regulation pulley needs no manual regulation during its service life.

3. Late-model twisted punch type blade has already passed the static and dynamic balance

    testing, which ensures a lot of air flow will produce at suitableblade profile angle and noise

    also has been well controlled.4. Shutter is made of stainless steel. Its special pneumatic open and shut institution ensures it

    can completely open and shut and has effect of wind proof, rain proof and dust proof.

5. Back safety net is easily to be demounted.6. Eight strict quality testing procedures: noise testing, vibration testing, static balance testing,

    dynamic balance testing, rotary concentric performance testing, blade rotationl speed testing

    and overall efficiency testing. 

FJ48-71A Ventilation Fan