High speed DC axial fans are widely used across industries for cooling electrical machines and equipment. These axial flow fans are durable and used in various small to large applications. Sofasco International is one of the leading manufacturers of RoHS, certified DC axial cooling fans in different voltages. These muffin DC fans are designed for commercial, industrial, and OEM applications. We offer these fans in various performance characteristics, materials, and functionalities in sizes ranging from 25mm to 172 mm. Our product line features high-performance and ultra-quiet, low-, medium-, and high-speed DC brushless fans. There are small and miniature electronic and computer cooling fans, micro exhaust fans, as well as waterproof and dustproof fans. We can also provide centrifugal and serial fans for increased airflow in high static pressure enclosures.
Sofasco International designs, manufactures, and distributes DC axial fans for OEM, industrial, commercial, telecom, medical, computer, and electronics cooling applications. This collection includes RoHS-compliant DC brushless axial fans in 5V, 12V, 24V, and 48V, with frame sizes ranging from 25mm to 172mm. Sofasco offers a wide range of performance characteristics, materials, and fan functionalities to support both standard cooling requirements and application-specific airflow needs.
The DC axial fan product line includes high-performance and ultra-quiet models, along with high-, medium-, and low-speed DC brushless fans. Available options include small miniature electric and electronic cooling fans, computer and IT component cooling fans, micro exhaust fans, dustproof and waterproof fans, and IP54 and IP55 rated models for harsher operating environments.For applications requiring additional monitoring or control, Sofasco can provide optional 3rd-wire rotation detection, 3rd-wire frequency generator output, and thermistor temperature control. For higher airflow resistance or high static pressure enclosures, Sofasco can also support serial fan configurations and related airflow solutions such as DC blowers and DC centrifugal fans.
With facilities in the United States and China, Sofasco supports stocked replacement requirements, OEM cooling programs, custom fan specifications, and application guidance. Use the product listings below to compare available DC axial fan models, or contact Sofasco for help selecting the right fan based on voltage, airflow, static pressure, bearing type, operating environment, and noise target.
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Standard Features of Industrial DC Axial Fans
We provide industrial DC axial fans in various specifications; however, the following are a few standard features that will help you understand their functioning.
- Material: Our DC axial fans are made of high-quality materials. The frame and impeller is made of high quality, UL-94V-0 compliant plastic. The lead wire is UL1571AWG#28 or Equivalent (+) Red, (-) Black.
- Voltages: The fans are available in voltages such as 5V, 12V, 24V, and 48V.
- Bearings: Our industrial DC axial flow fans are equipped with sleeve or ball bearings for smooth operation.
- Expected Life:Ball bearing fans are rated for up to 70,000 hours, while sleeve bearing fans are rated for up to 30,000 hours when maintained at 40°C.
- Operating Temperature Range: The operating temperature range is -10°C~70°C (non-condensing) and storage temperature range is -40°C~70°C (non- condensing).
- Customization: We can design fans with optional 3rd wire signal rotation detection, 3rd wire signal frequency generator, and thermistor temperature control.
- Safety Standards: Sofasco offers RoHS-compliant DC axial fans, with models available to meet UL, TUV, and CE requirements depending on the product series and application
How to Choose the Right DC Axial Fan
The right DC axial fan depends on operating voltage, frame size, airflow requirement, static pressure requirement, bearing type, noise target, and operating environment. For low-power electronics and compact devices, engineers may begin with a 5V or 12V DC axial fan. For industrial equipment, control panels, and power electronics, 24V DC axial fans are commonly used. For telecom, datacom, and higher-voltage systems, a 48V DC axial fan may be the better fit.
Axial fans are generally preferred when the airflow path is straight and resistance is low to moderate. If the enclosure has restricted airflow, ducting, or a higher static pressure requirement, compare the DC axial fan with a DC blower, DC centrifugal fan, or serial fan configuration before final selection.
Popular DC Axial Fan Options by Voltage
Sofasco offers DC axial fan options across multiple voltage ranges to support compact electronics, industrial equipment, telecom systems, and OEM thermal management programs.
5V DC Axial Fans
5V DC axial fans are commonly used in compact electronics, embedded devices, low-power systems, and small cooling applications where limited board-level power is available.
12V DC Axial Fans
12V DC axial fans are widely used in electronics cooling, computer and IT equipment, enclosure ventilation, power supplies, and component-level airflow applications.
24V DC Axial Fans
24V DC axial fans are often specified for industrial control panels, automation equipment, power electronics, instrumentation, and equipment cooling.
48V DC Axial Fans
48V DC axial fans are commonly used in telecom, datacom, networking, and higher-voltage electronic systems where continuous-duty airflow is required.
Benefits of Using DC Axial Cooling Fans
Our DC axial flow fans are employed for cooling applications owing to the benefits that they offer. The following are a few beneficial features of these fans.
- The high speed DC axial cooling fans designed by us possess a high product life expectancy.
- Brushless motor drives equipped to these fans help minimize thermal load on bearings. This helps improve the shelf life and performance of fans.
- The ball bearings and sleeves are powered by insulated motors. The fans conforming to IP 54 and other protection classes are also available with us.
- We also provide a complete crossover line of computer replacement fans.
- Every model is tested to minimize the noise in high airflow and high-pressure conditions.
- All our models are RoHS compliant and they are designed to meet strict requirements of mechanical shocks, humidity, thermal cycling, and vibrations.
Applications of High Speed DC Axial Fans
Our DC axial muffin fans are widely used in the following applications:
- Telecommunication Equipment
- Networking/High-End Servers
- Medical Devices
- Computer & IT Industry Component Cooling Systems
- Automotive/Transportation Equipment
- Power Supplies
These applications require reliable airflow, stable DC operation, compact construction, and long service life. Sofasco supports standard product selection and OEM-specific cooling requirements for engineers, equipment manufacturers, and procurement teams.
DC Axial Fan vs. DC Blower vs. DC Centrifugal Fan
Use this comparison to decide whether a DC axial fan is the right cooling solution or whether your application requires a blower-style or centrifugal airflow design.
| Cooling Option | Best When | Airflow Path | Pressure Profile | Best Sofasco Path |
|---|---|---|---|---|
| DC Axial Fan | You need straight-through airflow for enclosure, equipment, or electronics cooling. | Parallel to the fan shaft | Low to moderate restriction | DC Axial Fans |
| DC Blower | You need directed airflow or stronger performance through a restricted airflow path. | Redirected discharge | Moderate to high restriction | DC Blowers |
| DC Centrifugal Fan | You need radial airflow or a different enclosure layout. | Radial / redirected | Moderate to high restriction | DC Centrifugal Fans |
Cooling Behavior of DC Brushless Axial Fans
DC brushless fans are used for cooling electronic circuits across industries. The cooling behavior of these fans depends on several factors such as:
- Current Capacity of a DC Fan Motor: The current drawn by the DC fan motor is often indicated as an average current. However, it is not clear if the current drawn is the DC current. When the fan is operated at its peak it may draw large currents. If the electronics that interfaces a DC brushless cooling fan shares grounding with digital logic circuitry of low level then it may cause functional issues at peak These large switching currents may produce ripple voltage on the DC line, thereby affecting the cooling behavior of the fan.
- Stall Region: This is one of the complex behavioral concepts of an axial fan. There are several reasons why a fan may act as a stall. If the fan is operated at a high pressure, the air exiting through it may move in a diagonal direction than the expected axial direction. This can create major problems for objects that are cooled on the same axis of the fan. Hence while designing the fan it must be ensured that the required areas attain maximum airflow.
- Fan Vibrations: Vibrations of fans can also impact the cooling capability. Some amount of vibration will be generated depending on the speed and balance of the fan. There are several factors that may lead to vibration; however, you can correct a few of them with minor design changes. For instance, consider the gap between the fan and the structure onto which it is mounted. Similarly, address the frequency of the rotation of the fan and the structure where it is mounted.
- Speed and Input Voltage: The speed and input voltage of a DC brushless motor fan are related to each other. The speed of a fan changes with the input voltage. Brushless fans are usually available in three voltage variants – 12V, 24V, and 48V. Generally, in the data sheet, you will see the rated voltage mentioned as 12 VDC, and the operating voltage from 6 to18 VDC. If the fan is operated at a lower voltage than mentioned then the airflow will reduce, too. For instance, if the fan is operated at 12 VDC, its speed would be 2500 RPM and airflow would be 170 CFM. However, if it is operated at 9 VDC, the speed will be 1300 RPM and airflow would be 88 CFM. Thus, to avoid these anomalies, engineers always take care to minimize power drops. They also try to match the power supply voltage to the application.
- Speed Tolerances: The speed of fan at 12 VDC is usually 2500 RPM. Many manufacturers fail to indicate the tolerance associated with it. Although these tolerances may differ across manufacturers, typically they are +/- 10%. For instance, if the fan reaches the lower end of tolerance, the airflow due to free air would be only 156 CFM. This sharp fall may have severe effect on the airflow. This decline in airflow must be addressed when designing DC brushless fan.
Why Choose Sofasco as Your DC Axial Fan Manufacturer?
Sofasco International is an experienced designer, manufacturer, and distributor of DC and AC cooling fans for OEM, industrial, and commercial applications. As a DC axial fan manufacturer, Sofasco supports customers with multiple voltage options, broad size availability, RoHS-compliant fan solutions, optional fan monitoring features, and application-specific guidance.
With facilities in the United States and China, Sofasco can support both standard product requirements and custom cooling programs. Whether you need a compact DC brushless fan for electronics cooling, a 24V fan for industrial equipment, a 48V fan for telecom infrastructure, or a serial fan configuration for higher static pressure conditions, Sofasco can help evaluate airflow, static pressure, noise, bearing type, and environmental requirements before final selection.
Need help choosing a model? Request a DC axial fan quote or contact Sofasco’s team for application support.
Frequently Asked Questions About DC Axial Fans
What is a DC axial fan?
A DC axial fan moves air parallel to the fan shaft. It is commonly used for electronics, telecom, medical, industrial, computer, and equipment cooling where straight-through airflow is required.
What voltages are Sofasco DC axial fans available in?
Sofasco offers DC axial fan options in 5V, 12V, 24V, and 48V to support compact electronics, IT equipment, industrial controls, telecom systems, and OEM cooling applications.
What size range is available?
Sofasco DC axial fans are available in frame sizes from 25mm to 172mm, supporting miniature electronic cooling through larger equipment and enclosure cooling requirements.
Are dustproof and waterproof DC axial fans available?
Yes. Sofasco offers dustproof and waterproof DC axial fan options, including IP54 and IP55 rated models, depending on the fan series and application requirements.
What is the difference between sleeve bearing and ball bearing DC fans?
Sleeve bearing fans are typically used for moderate-duty and cost-sensitive applications. Ball bearing fans are generally preferred for longer operating life, broader mounting flexibility, and more demanding environments.
Can Sofasco provide fan monitoring or control options?
Yes. Sofasco can provide optional 3rd-wire rotation detection, 3rd-wire frequency generator output, and thermistor temperature control for applications that require closer fan monitoring and thermal control.
When should I choose a DC axial fan instead of a DC blower?
Choose a DC axial fan when the airflow path is straight and system resistance is low to moderate. If the enclosure has restricted airflow or requires higher static pressure, compare the application with a DC blower, DC centrifugal fan, or serial fan configuration.
Can Sofasco support OEM DC axial fan requirements?
Yes. Sofasco supports OEM, industrial, and commercial cooling requirements, including stocked fan selection, replacement requirements, custom specifications, and application-specific fan guidance.