120mm DC Axial Fan Series: High-Volume Cooling for Large Industrial Systems
Designed for large heat load and high-power equipment, SZR's 120mm DC axial fan series provides massive airflow and powerful heat dissipation in a 120×120mm footprint. Available in thicknesses from 15mm to 50mm, these fans are the preferred choice for large cabinets, chassis and ventilation systems with high heat generation. Built with UL94V-0 plastic components and supporting both sleeve and ball bearing configurations, the series operates on 12V, 24V or 48V DC inputs for large-scale industrial and new energy systems.
Design & Engineering Notes
The 120mm lineup caters to diverse cooling needs through varying thickness profiles:
- Slim models (12015): 15mm ultra-slim design for thin large-scale equipment and wall-mounted ventilation systems.
- Mid-range thicknesses (12025, 12038): Classic mainstream thickness, with super large air volume, suitable for computer chassis, large power cabinets and ventilation units.
- Thicker variants (12045, 12050): Extreme static pressure and airflow performance for sealed high-power equipment and industrial heat dissipation stations.
All models feature color-coded wiring (red positive, black negative) for easy installation and comply with CE/RoHS standards.
Key Specs (Model 12038)
| Dimensions | 120×120×38mm |
| Rated Voltage | 12V / 24V / 48V DC |
| Operating Voltage Range |
6.0–13.5V (12V), 18–26.5V (24V), 45–53V (48V) |
| Speed Range | 1500–3200 RPM |
| Air Flow | 35–60 CFM (0.99–1.70 m³/min) |
| Noise Level | 30–42 dB(A) |
| Bearing Type | Sleeve / Ball Bearing |
| Material |
Impeller & Frame (UL94V-0 Plastic) |
| Certifications |
CE, RoHS |
Specifications for 12015, 12025, 12045, and 12050 are available upon request or via the SZR official catalogue.
Core Strengths
- Large-Size High Airflow: 120mm large frame delivers maximum air volume, solving high-power equipment heat dissipation perfectly.
- Low Vibration & Stable Operation: Optimized integral frame structure reduces vibration during high-speed operation.
- Long-Life Industrial Design: Dual ball bearing version supports long-term continuous operation in factory and outdoor environments.
- Universal Mounting Standard: 120mm mounting hole is globally mainstream, widely compatible with all kinds of large chassis and cabinets.
- Strong Environmental Adaptability: High temperature, dust and aging resistant materials suit complex industrial working conditions.
Ideal Applications
• Desktop & industrial computer chassis
• Large industrial electrical cabinets and ventilation systems
• New energy charging equipment and energy storage cabinets
• Environmental protection and air purification equipment
• Large power supply and high-power inverter devices
• Factory workshop ventilation and heat dissipation engineering
Quick Support Q&A
Q: How do I choose between different thicknesses?
A: Slimmer models (≤25mm) work best for low-static-pressure open systems; thicker variants (≥38mm) provide higher static pressure for enclosed/filtered setups.
Q: Are low-noise versions available?
A: Yes. Custom blade profiles and speed tuning reduce noise output for noise-sensitive environments like indoor ventilation and office equipment.
Q: What's the typical lifespan?
A: Sleeve bearing models offer 20,000–30,000 hours of continuous use; ball bearing versions extend this to 40,000–50,000 hours.
Our Commitment
SZR maintains strict quality control for all 120mm DC fans, with 100% functional testing before shipment. Our engineering team assists with airflow matching, model selection, and custom cooling solutions tailored to your project
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