17251C DC Axial Flow Fan – 171×152×51.5mm High-Power Industrial & Defense Cooling Fan
The Senharfans 17251C DC Axial Flow Fan (171×152×51.5mm) is a high-performance cooling solution designed for large-scale electronic systems in industrial, aerospace, naval, and defense applications.
Featuring a reinforced aluminum alloy frame, dual ball bearings, and high-efficiency DC motor design, the 17251C ensures reliable airflow, high static pressure, and long service life in demanding 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: 765 g
The robust aluminum frame enhances durability, vibration resistance, and thermal management efficiency.
Performance Specifications
| Model | Voltage | Power | Speed | Airflow | Static Pressure | Noise |
|---|---|---|---|---|---|---|
| J172FZW140-51C00 | 12V | 24.1 W | 4000 RPM | 487.7 m³/h | 234.9 Pa | 55.5 dBA |
| J172FZW150-51C00 | 12V | 44.5 W | 5000 RPM | 598.4 m³/h | 367.0 Pa | 60.3 dBA |
| J172FZW170-51C00 | 12V | 59.3 W | 5500 RPM | 658.2 m³/h | 444.0 Pa | 67.0 dBA |
Available voltage options: 5V, 12V, 24V, 28V, 48V
Signal Function Options
| Code | Function |
|---|---|
| 0 | No Function |
| 1 | PWM Duty Cycle Speed Control |
| 2 | High-Level Fault Alarm |
| 3 | Tachometer (RPM) Feedback |
| 4 | PWM + High-Level Fault Alarm |
| 5 | PWM + Tachometer Feedback |
Environmental Adaptability (GJB Standards)
The 17251C can be configured according to multiple military/industrial standards:
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High/Low Temperature: –50°C to 75°C
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Rain / Water Ingress: 1 hour enhanced per surface
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Humidity / Damp Heat: Cyclic 30–60°C, RH 95%, 10 cycles
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Fungus Resistance: Group 1 or 2, 28 days
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Salt Spray: Neutral / Acidic, 192 hours
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Sand & Dust: Blowing test
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Shock / Acceleration: 20–40g, multi-axis
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Low Air Pressure / EMC / Vibration: GJB standards
Applications include:
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Radar systems
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Naval electronic cabinets
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UAV / airborne electronics
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Military vehicles
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Industrial automation power systems
Key Advantages
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Large airflow with compact yet robust 171×152×51.5 mm size
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Aluminum alloy frame for enhanced durability
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Dual ball bearing long-life design
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Multi-voltage compatibility
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Intelligent signal control options
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OEM & project customization support
For technical drawings, airflow curves, or project consultation, contact Senharfans engineering team.
