Energy-Efficient Airflow Solution for Industrial Ventilation
SZR backward curved DC centrifugal fans are designed for applications requiring high airflow efficiency and stable static pressure with lower power consumption. The aerodynamic impeller structure improves ventilation performance while reducing airflow turbulence and operational noise.
Aerodynamic Structure
The backward curved blade design allows air to move efficiently through the centrifugal chamber with reduced resistance. The housing uses corrosion-resistant metal material for long-term structural durability, while the impeller adopts reinforced engineering plastic material for balanced rotation performance.
Compared with conventional blower structures, the backward curved configuration offers improved efficiency under medium and high-pressure operating conditions.
Technical Specifications
|
Parameter |
Specification |
|
Diameter Range |
120-280 mm |
|
Voltage |
12V / 24V / 48V DC |
|
Speed Range |
1400-3200 RPM |
|
Airflow |
80-520 CFM |
|
Static Pressure |
3.0-9.0 inch-H2O |
|
Noise |
38-65 dB(A) |
|
Bearing |
Ball Bearing |
|
Motor Type |
Brushless DC |
|
Protection |
Locked Rotor / Reverse Polarity |
|
Temperature |
-20°C to +80°C |
|
Protection Grade |
IP54-IP67 Optional |
|
Certifications |
CE, RoHS, UL, ISO9001 |
Product Advantages
• Higher airflow efficiency with lower energy loss
• Stable pressure performance under load conditions
• Lower operational noise compared with forward curved designs
• Reduced motor power consumption
• Suitable for long-term industrial operation
• Flexible control and monitoring options available
Typical Industries
• HVAC systems
• Industrial air circulation
• Air purification systems
• Communication cabinets
• Heat recovery equipment
• Electronic cooling devices
• Automation ventilation systems
Frequently Asked Questions
Q: What is the advantage of backward curved blades?
A: They improve airflow efficiency while lowering energy consumption and noise levels.
Q: Is variable speed control available?
A: PWM and voltage speed regulation are both supported.
Q: Can the fan operate continuously?
A: Yes. Brushless ball bearing motors support long-duration operation.
Q: Are customized dimensions supported?
A: SZR can provide project-based dimensional customization.
Technical Cooperation
SZR offers centrifugal airflow optimization, OEM manufacturing and customized engineering support for industrial thermal management projects.
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