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, as an air blower company, we provide sustainable, intelligent solutions for almost any application in HVAC industry.
Centrifugal Fans
Centrifugal equipment 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 Axial Fans DC Axial Fans EC 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
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%
Ensure the quality of raw materials
Laboratory Testing Standards
The professional laboratory meets the high requirements of various certifications.
100% Fan System Comprehensive Test
Ensure that all performance indicators of the fan meet the customer's requirements.
Axial Fans or Centrifugal Fans
Characteristics Axial Fan Centrifugal Fan
Airfow Direction Air 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 pressure Relatively low air volume but high pressure.
Applicable
Applications Suitable for enironments requiring high air volume but low resistance Centrifugal fan, including backward curved fan and forward curved centrifugal blower, is suitable for environments requiring high pressure overcoming significant resistance, such as ventilation systems with long ducts and high resistance
Noise Generally louder than centrifugal fans for the same air volume Relatively quiet.
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