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As a professinal manufacturer in external rotor motor of centrifugal fan fan and axial fan, Sunwind has been devoted to the fan motor innovation, electrionics control, fluid flow optimization many years, we focus on complete design, manufacturing service and customized solutions for each client. With the wide range of high-performance industrial & residential centrifugal fan and axial fan in AC, DC and EC motor, we provide sustainable, intelligent solutions for almost any application in HVAC industry.

Sunxfan's Key Product Examples

Centrifugal Fans

Centrifugal fans efficiently move air or gases using rotating impellers, delivering stable airflow and high pressure. They play a vital role in HVAC, ventilation, dust collection, and industrial processes, ensuring reliable air movement in demanding applications. Their design makes them ideal for systems requiring consistent performance over extended operation.

Axial Fans

AC and EC axial fans deliver efficient airflow for HVAC systems. AC fans are robust, economical, and suitable for industrial or commercial use but consume more energy. EC fans combine AC durability with DC efficiency, offering 60–70% energy savings, quiet operation, and precise speed control, ideal for diverse ventilation applications.

Duct Fans

AC, DC, and EC circular duct fans optimize airflow in HVAC systems. AC fans are reliable and cost-effective for industrial use but consume more energy. DC fans offer quiet, efficient performance with precise control. EC fans combine both technologies, ensuring superior efficiency, speed control, and energy savings across applications.

Ventilation Units

Ventilation Units are customized products developed in close collaboration between SunxFan and clients. They incorporate CFD fluid dynamics design tailored to meet specific requirements such as constant airflow, low noise operation, and RS485 communication functionality, providing targeted solutions based on individual needs.
Advantages of PMSM External Rotor Fans

Advantages of PMSM External Rotor Fans

  • High Efficiency‌

Eliminates rotor copper losses through permanent magnet excitation, maintaining efficiency under variable loads.


  • High Power/Torque Density‌

Strong permanent magnet air-gap flux enables compact design with exceptional power output per unit volume.


  • Precise Control Performance‌

Low inertia and rapid dynamic response allow accurate speed/torque control via FOC/DTC algorithms.


  • Low Noise and Vibration‌

Sinusoidal back-EMF waveform minimizes torque ripple for ultra-quiet operation.


  • High Reliability‌

Brushless structure reduces mechanical wear, extending service life with minimal maintenance.


Why choose SunxFan

100% Incoming Inspection100%

100% Incoming Inspection100%

Ensure the quality of raw materials

Laboratory Testing Standards

Laboratory Testing Standards

The professional laboratory meets the high requirements of various certifications.

100% Fan System Comprehensive Test

100% Fan System Comprehensive Test

Ensure that all performance indicators of the fan meet the customer's requirements.

Axial Fans or Centrifugal Fans

CharacteristicsAxial FanCentrifugal Fan
Airfow DirectionAir enters and exits along the fan axis(a straight line).Air enters along the axis and is ejected by centrifugal force perpendicular to the
axis(at a 90-degree angle).
Air Volume and
Pressure
High air volume and low pressureRelatively low air volume but high pressure.
Applicable
Applications
Suitable for enironments requiring high air volume but low resistanceSuitable for environments requiring high pressure overcoming significant
resistance, such as ventilation systems with long ducts and high resistance
NoiseGenerally louder than centrifugal fans for the same air volumeRelatively quiet.

Production Process of Centrifugal Fans

High Pressure DC Blower
DC Air Blower
Air Blower DC
DC Air Blower Price
Research
Research
Design
Design
Production
Production
Quality Test
Quality Test
Warmly welcomes your messages, emails or calls to us, ​SunxFan will dedicate our full resources to address it promptly.
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5th Floor, Block 1, Kang Fulai Industrial Zone A, No. 63, Chengye Road, Ronggui, Foshan, Guangdong, China
5th Floor, Block 1, Kang Fulai Industrial Zone A, No. 63, Chengye Road, Ronggui, Foshan, Guangdong, China
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