An external rotor axial flow fan is a specialized ventilation device designed for efficient air movement in diverse industrial and commercial applications. Unlike conventional axial fans, its motor rotor is positioned externally, directly driving the impeller blades. This design eliminates the need for a separate driveshaft, resulting in a compact structure with reduced axial dimensions, making it ideal for space-constrained installations.
Key Features and Advantages
- Compact Structure: The integrated motor-impeller design minimizes mechanical complexity, enhancing reliability and reducing maintenance requirements.
- High Efficiency: Optimized blade aerodynamics and direct-drive motor coupling ensure superior airflow performance with lower energy consumption.
- Low Noise Operation: Advanced blade profiles and vibration-dampening motor mounts contribute to quieter operation, suitable for noise-sensitive environments.
- Wide Voltage Compatibility: Available in single-phase (220-240V, 50/60Hz) and three-phase (380V, 50/60Hz) configurations, with customizable voltage/frequency options.
- Durable Construction: Manufactured from corrosion-resistant materials (e.g., galvanized steel, ABS plastic), with IP54/IP44 protection ratings for harsh environments.
Different colors are available to custom




Q1: Do you provide ODM and OEM services?
A: Yes, we can make custom designs for specific applications.
Q2: When can I get a quote?
A: We usually quote within 24 hours after receiving your inquiry. If you are in urgent need of getting the price, please send a message to Trade Admin or call us directly.
Q3: How can I get samples to check your quality?
A: After price confirmation, you can ask for samples to check the quality.
If you need samples, we will charge sample fees. But the sample fee is refundable when your first order quantity exceeds the MOQ
Q4: Can the quotation be discounted?
A: Yes, the quotation is based on annual usage.
Q5: How to solve quality problems after sales?
A: Take photos of the problem and send them to us. We will provide you with a satisfactory solution within 24 hours after confirming the problem.