Silent EC Cooling Fan for Precision Electronic Equipment
SZR low-noise EC axial fans are developed for applications requiring quiet operation, stable airflow and energy-saving thermal management. The series combines low-vibration motor control technology with aerodynamic blade optimization to minimize acoustic output while maintaining efficient heat dissipation performance. These fans are suitable for medical systems, intelligent terminals, laboratory equipment and premium electronic devices.
Acoustic Optimization Design
The fan housing incorporates vibration-reduction structural reinforcement to minimize resonance during rotation.
Special low-noise blade contours improve airflow smoothness and reduce airflow separation noise.
The EC motor adopts intelligent electronic commutation control that lowers mechanical friction and switching noise during operation.
Precision-balanced rotating assemblies improve stability and reduce long-term vibration accumulation.
Technical Specifications
|
Parameter |
EC Silent 9225 |
EC Silent 12025 |
|
Dimension |
92×92×25 mm |
120×120×25 mm |
|
Voltage Type |
24V EC |
24V EC |
|
Rated Current |
0.08-0.18 A |
0.10-0.25 A |
|
Speed |
1200-2200 RPM |
900-1800 RPM |
|
Airflow |
32-58 CFM |
45-82 CFM |
|
Noise |
18-27 dB(A) |
20-29 dB(A) |
|
Bearing |
Hydraulic / Ball Bearing |
Hydraulic / Ball Bearing |
|
Expected Lifetime |
40,000 Hours |
50,000 Hours |
|
Operating Humidity |
5%-90% RH |
5%-90% RH |
|
Protection |
Auto Restart / Locked Rotor Protection |
Auto Restart / Locked Rotor Protection |
|
Certifications |
CE, RoHS, ISO9001 |
CE, RoHS, ISO9001 |
Product Benefits
• Ultra-low acoustic operation
• Reduced vibration during startup and running
• Stable airflow for sensitive electronics
• Lower energy consumption than conventional DC fans
• Intelligent motor protection functions
Main Applications
• Medical diagnostic equipment
• Smart home control systems
• Audio and broadcasting devices
• Precision testing instruments
• Mini PC and workstation cooling
• Laboratory ventilation modules
• High-end display systems
Common Questions
Q: Can the fan be used in quiet indoor environments?
A: Yes. The low-noise blade structure is designed specifically for acoustically sensitive applications.
Q: Which bearing option is quieter?
A: Hydraulic bearing configurations typically provide lower operational sound levels.
Q: Does the fan support automatic restart?
A: Yes. The protection circuit supports auto-recovery after temporary rotor blockage.
Q: Is variable-speed control supported?
A: PWM intelligent speed control can be customized according to system requirements.
Custom Manufacturing Support
SZR offers customized silent cooling solutions including airflow tuning, noise optimization, wire harness design and intelligent control integration for low-noise electronic equipment.
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