This picture shows the 70x70x15mm-A DC brushless blower produced by Guangzhou Mega Technology Co., Ltd. It is made of plastic (fireproof grade UL94V-0), weighs 66g, and provides three bearing options: ball, oil-containing, and hydraulic.

Parameter Value

Product Type: DC brushless blower fan

1. Size: 70x70x15mm
2. Bearing Type: Bearing、sleeve、HY
3. Frame Material: Plastic (UL94V-0)
4. Blade Material: Plastic (UL94V-0)
5. Weight:66g
6. Rated Voltage: 12V,24V
7. Voltage Range: 6.5-13.5V(12V);18-26.5(24V)
8. Rated Current:0.05-0.30A
9. Rated Input Power:1.2-3.6W
10. Speed:2000-3500RPM
11. Air Flow:4.2-7.21CFM
12. Maximum Air Pressure:5.29-20.66mH2O
13. Noise Level:30.2-44.4dB-A

Key Features and Advantages:

Key Features:

1. Compact Size and Light Weight: The 70x70x15mm dimensions and 66g weight make it easy to integrate into various devices, especially suitable for space-constrained applications.
2. Multiple Bearing Options: Three bearing options are available: two ball bearings, sleeve bearings, and hydraulic bearings (HY). Users can choose the appropriate bearing type based on specific application scenarios and cost considerations. Ball bearings offer a long lifespan, sleeve bearings are lower in cost, and hydraulic bearings fall in between.
3. Flame-Retardant Materials: Both the frame and impeller are made of UL94V-0 rated plastic, which has good flame retardancy and improves product safety.
4. Multiple Voltage and Performance Configurations: Two rated voltages, 12V and 24V, are offered, along with different current, power, speed, and airflow/air pressure configurations to meet the needs of various applications.
5. Detailed Performance Parameters and Curves: Detailed performance parameter tables and P@Q curves are provided to facilitate users in selecting the appropriate model and operating point according to actual needs. The P@Q curve intuitively shows the relationship between airflow and static pressure, which helps optimize system design.
6. Clear Dimensional Drawings: Detailed dimensional drawings are provided to facilitate user installation and design.
7. Code Rules: An explanation of the code rules is provided to help users understand the differences between different models.

Key Advantages:

1. High Efficiency and Energy Saving: Brushless motors have no brush friction loss, resulting in higher efficiency and energy savings.
2. Long Lifespan and Low Maintenance: Brushless motors have no brush wear, resulting in a longer lifespan and eliminating the need for frequent brush replacement, thus reducing maintenance costs.
3. Low Noise: Brushless motors operate with lower noise, providing a quieter working environment.
4. Higher Reliability: Brushless motors have no electrical sparks generated by brushes, making them more reliable and less prone to electromagnetic interference.

Applications

1. Electronic Device Cooling:

1. Desktop Computers/Servers: Although the 70mm size is relatively small, it can be used for localized cooling in small chassis or servers, such as providing auxiliary cooling for chipsets, hard drives, or other heat-generating components. It is more commonly used in small servers or network devices.
2. Laptops/Tablets: Due to its slim and light characteristics, this fan can be used for internal cooling in ultra-thin laptops or tablets, especially for major heat-generating components such as the CPU and GPU.
3. Network Devices: Such as routers, switches, optical network terminals (ONTs), etc. These devices also generate heat during operation and require cooling. Small blowers can provide effective cooling solutions.
4. Set-Top Boxes/TV Boxes: Devices like TV boxes have limited internal space, and this small fan can be used for cooling to ensure stable device operation.
5. Projectors: Projector bulbs and circuit boards generate a large amount of heat, requiring effective cooling systems. This small fan can be used for auxiliary cooling.
6. VR/AR Devices: Virtual reality/augmented reality devices have compact internal spaces and high cooling requirements. This small fan can be used for cooling critical components.

2. Home Appliances:

1. Air Purifiers/Humidifiers/Dehumidifiers: Used to drive air circulation and improve purification, humidification, or dehumidification efficiency.
2. Small Refrigerators/Freezers: Used for cooling condensers or evaporators to improve refrigeration efficiency.
3. Smart Toilets/Bathroom Equipment: Used for ventilation and deodorization or cooling heating components.
4. Small Heaters/Fan Heaters: Used for auxiliary hot air circulation.

3. Industrial Control and Automation Equipment:

1. Industrial Control Cabinets/Distribution Boxes: Used for cooling inside control cabinets to prevent electronic components from overheating and damage.
2. Servo Drives/Frequency Converters: These devices generate heat during operation and require cooling. Small blowers can provide effective cooling solutions.
3. Small Welding Equipment/Laser Equipment: Used for localized cooling to protect equipment from overheating damage.
4. 3D Printers: Used for cooling extruders or stepper motors.

4. Automotive Electronics:

1. In-Car Navigation/Entertainment Systems: Used for cooling internal circuit boards.
2. Dashcams/Rearview Camera Systems: Used for chip cooling to ensure stable device operation.

5. Medical Equipment:

1. Small Medical Instruments: Such as portable medical testing equipment or small treatment devices, used for internal cooling.

Our advantage
Guangzhou Mega Technology Co., Ltd. is located in Guangzhou, Guangdong Province. We benchmark against leading cooling fan manufacturers like Delta Electronics, Nidec Corporation, Sunon, Sanyo Denki, and Orion Fans. Offering AC, DC, and EC fans, we provide customized cooling solutions for various industrial and commercial applications. Our strong R&D and technical expertise ensure our products match top manufacturers’ performance at significantly lower prices.

We pride ourselves on delivering tailored solutions to meet unique client needs. Our team collaborates closely with customers to design products that optimize cooling performance, energy efficiency, and reliability. Whether for electronic devices, industrial machinery, or commercial systems, Guangzhou Mega Technology Co., Ltd. is dedicated to providing high-quality, cost-effective solutions that exceed expectations. Our commitment to innovation and customer satisfaction keeps us at the forefront of the cooling fan industry.