17251B DC Axial Flow Fan – High-Power 172mm Industrial & Defense Cooling Fan
The Senharfans 17251B DC Axial Flow Fan (Φ172 × 51 mm) is a high-performance cooling solution designed for large-scale industrial equipment, power electronics, radar systems, and military platforms.
Featuring a reinforced aluminum alloy frame, dual ball bearings, and high-power motor design, the 17251B delivers powerful airflow and extremely high static pressure for demanding cooling environments.
Structural Design
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Frame: Aluminum Alloy
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Impeller: Engineering Plastic
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Bearing Structure: Dual Ball Bearings
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Weight: 1050 g
17251B DC axial flow fan
The aluminum frame enhances structural strength and vibration resistance, enabling stable operation in rugged environments.
Performance Specifications
| Speed | Airflow | Static Pressure | Noise |
|---|---|---|---|
| 4500 RPM | 491.6 m³/h | 244.2 Pa | 61.8 dBA |
| 7000 RPM | 764.7 m³/h | 591 Pa | 71.4 dBA |
| 9500 RPM | 1203.8 m³/h | 1562.6 Pa | 78.1 dBA |
Power consumption:
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28.7 W
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108 W
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Up to 270 W high-power version
17251B DC axial flow fan
Available voltage options:
5V / 12V / 24V / 28V / 48V
Intelligent Signal Options
The 17251B supports multiple control configurations:
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No function
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PWM speed control
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Fault alarm output
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Tachometer feedback
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PWM + alarm
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PWM + tachometer
17251B DC axial flow fan
These features enable integration into intelligent thermal management systems.
Environmental Reliability (Military Standard Support)
The fan can be configured according to GJB military environmental standards, including:
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High temperature operation up to 85°C
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Low temperature down to –55°C
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Neutral salt spray 192 hours
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Sand and dust resistance
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Vibration and shock resistance
Environmental performance includes:
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9g acceleration
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40g shock resistance
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6.3 kPa low air pressure capability for airborne equipment
17251B DC axial flow fan
Typical Applications
The 17251B is suitable for:
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Radar systems
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Military communication equipment
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Power electronics cooling
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Industrial power cabinets
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Marine electronic systems
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Vehicle-mounted equipment
Key Advantages
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Large 172mm diameter for powerful airflow
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Maximum airflow 1203.8 m³/h
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Extremely high static pressure 1562 Pa
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Aluminum alloy rugged structure
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High-power motor design up to 270W
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Intelligent signal control options
For airflow curves, technical drawings, or custom project requirements, contact the Senharfans engineering team.
