172mm DC Axial Fan Series: Compact High-Airflow Cooling for Space-Constrained Systems
SZR's 172mm DC axial fan series (SZR17251 / SZR17225 / SZR17250) features a unique semi-circular form factor designed to provide efficient thermal management in applications where conventional square-frame fans cannot be installed. Available in 172 × 150 × 25 mm and 172 × 150 × 51 mm configurations, this series delivers reliable airflow performance for compact enclosures, irregular equipment structures, and retrofit cooling applications with limited installation space.
Engineering & Design Features
The 172mm series is specifically engineered to address space limitations while maintaining strong cooling performance:
- Space-Optimized Semi-Circular Design: The 172 × 150 mm form factor enables installation in compact or irregularly shaped enclosures where traditional square fans are unsuitable.
- Long-Life Ball Bearing System: High-quality dual ball bearings reduce friction, improve operational stability, and extend service life in continuous-duty applications.
- Industrial-Grade Flame-Resistant Materials: UL94V-0 rated thermoplastic construction provides enhanced safety, durability, and resistance to heat and aging.
- Simplified System Integration: Standardized mounting dimensions with 6.4 mm mounting holes allow convenient installation into existing equipment designs.
- Reliable Electrical Connection Design: Color-coded lead wires support fast and error-free DC power integration.
Core Performance Specifications (SZR17251)
|
Parameter |
Details |
|
Dimensions |
172 × 150 × 51 mm |
|
Rated Voltage |
12V / 24V / 48V DC |
|
Operating Voltage Range |
6–13.5V (12V), 18–26.5V (24V), 36–54V (48V) |
|
Rated Speed |
2300–3500 RPM (multiple speed grades available) |
|
Airflow |
215.5 – 326.2 CFM (6.11 – 9.24 m³/min) |
|
Static Pressure |
8.26 – 17.15 mmH₂O (0.32 – 0.67 inH₂O) |
|
Noise Level |
51.3 – 63.2 dB(A) |
|
Bearing Type |
Ball Bearing |
|
Certifications |
CE, RoHS |
Key Advantages for Industrial Applications
Space-Saving Cooling Solution
The unique semi-circular structure enables effective cooling in confined or irregular installation spaces where standard axial fans cannot fit.
01
Stable High-Airflow Performance
Optimized blade geometry ensures efficient airflow delivery, even in compact systems with restricted ventilation paths.
02
Reliable Long-Term Operation
Ball bearing construction and industrial-grade materials support stable operation under vibration, dust exposure, and varying temperatures.
03
Wide Voltage Compatibility
Available in 12V, 24V, and 48V DC versions to support diverse industrial, telecom, and automation systems.
04
International Compliance Standards
CE and RoHS certifications support global deployment and compliance with environmental and safety regulations.
05
Typical Applications
● Industrial control panels and automation systems
● Compact or irregularly shaped equipment enclosures
● Telecommunication and networking equipment
● Medical and laboratory devices
● Marine electronics and outdoor systems
● Retrofit cooling applications with limited installation space
Customization & Performance Options
SZR offers multiple speed configurations to optimize the balance between airflow performance and acoustic noise. Additional customization services include:
- PWM speed control
- FG/RD signal output
- Customized lead wire lengths and connectors
- Environmental protection coatings
- Optimized blade configurations for low-noise applications
Our engineering team provides tailored thermal management solutions to meet specific airflow, noise, and installation requirements across a wide range of industrial applications.
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