40x40x20mm Centrifugal Fan Air Cooler Electric Blower

These small fans have good cooling cool-to-cool properties, because they produce high airflow.  Due to the compact design, they can easily be accommodated in various devices.

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CHUNGFO is a professional manufacturer and supplier of high quality Fans in Guangdong, China.

We have 20 years’ experience in Cooling Fan, provide our customers with unparalleled service and expertise, in addition to a wide range of products.

Our cooling products include AC Axial Fans, DC Axial Fans, EC Axial Fans, DC Blower, DC Frameless Fans, AC Cross Flow Fans and DC Cross Flow Fans.

DC blower Fans are found in a variety of applications, including household appliances, medical equipments, smart toilets, air cleaners and any type of equipment where the need for thermal control is necessary for the improved reliability and life extension of the components that are included in the system.

Large Air Flow Centrifugal Cooling Fan, 5V 12V 24V DC brushless with long service life at up to 50,000 hours. It's made of high-quality PBT material, is not easy to be deformed.

About this item

  • Designed for projects that requires cooling or ventilation; or as a replacement fan for various products.
  • Dimension of outer the frame is 40 mm(L) x 40 mm(W) x 20 mm(H) / The size of fan in inch is 1.57 in(L) x 1.57 in(W) x 0.78 in(H); The center to center distance beween the mountiong holes is 49.5 ± 0.5 mm / 1.92 in.
  • Operating Voltage Range: DC 5V/12V/24V | Current: 0.03 ~ 0.16 Amp | Speed: 4000 ~ 6000 RPM | Airflow: 1.66 ~ 2.24 CFM | Noise: 22 ~ 33 dBA | Pressure: 2.60 ~ 5.10 mmAq.
  • High Speed: This model is designed to maximize airflow and can be too loud for some applications.
  • Lead wire: (+): Red wire ; (-): Black wire. Bearing Type: Sleeve Bearing / Double Ball Bearing; Life: working up to 50,000h at 25 degrees.
  • Please Comfirm the Fan Size, Voltage, Connector and other parameters before purchase.

DC BLOWER FAN 40x40x20mm(1.57"x1.57"x0.78")


General Specification:
Frame: PBT(Black)UL94V-0
Impeller: PBT(Black)UL94V-0
Operating Temperature: -10ºC~70ºC
Motor Protection:  Auto Restart or Polarity Protection
Insulation Resistance: 20MΩ or over with a DC500V Megger
Dielectric Withstand Voltage: AC500V 1s
Bearing Type: Sleeve Bearing or Ball bearing


·All reading are typical values at rated voltage.
·Parameters can be set according to customer requirements.


  • Cost-effective, fast delivery, good service;
  • Able to change the direction of incoming air by 90˚;
  • Impedance protection ensures safe operation at high temperatures;
  • Effective and extremely quiet ventilation for quick removal of humidity and odors;
  • Ball and sleeve bearing system allows the fan to be laid flat or stand upright;
  • PBT frame and blades brushless blower fan designed for projects that requires cooling or ventilation.

More Models

These fans are available in several sizes to accommodate diverse applications— such as those found in tight spaces or difficult to reach areas.

Type Model Size Type Model Size
DC Blower C04020 40x40x20mm(1.57"x1.57"x0.78") DC Blower C06015B 60x60x15mm(2.36"x2.36"x0.59")
C05015 50x50x15mm(1.96"x1.96"x0.59") C07525 75x75x25mm(2.95"x2.95"x0.98")
C05025 50x50x25mm(1.97"x1.97"x0.98") C07530 75x75x30mm(2.95"x2.95"x1.18")
C05828 58x58x28mm(2.28"x2.28"x1.10") C09733 97x97x33mm(3.91"x3.91"x1.30")
C06015A 60x60x15mm(2.36"x2.36"x0.59") C12032 120x120x32mm(4.72"x4.72"x1.26")


Our products are mainly used for ventilation and heat dissipation of equipment and instruments.Related fields include household appliances, projectors, medical equipment, oxygen generator;Smart toilets, air purifiers, new energy, etc.

  • Customized projects related to Medical equipment, Air purifiers, 3D printers, cooling, ventilation and heat dissipation systems, and more.
  • Create a cooling system to keep the home appliances system, office equipments and other electronic equipments running at the ideal temperature and the optimal speed.

Quality Control

CHUNGFO has strict delivery inspection standard to ensure that the products quality meets customer’ requirements.

In addition, our fans are tested for quality to ensure the best possible performance. Our quality control staff is highly trained to perform stringent testing procedures.


Over the years, we have been with many well-known brands to achieve friendly cooperation.

Sincerely thank our customers for their trust and support.


All our products are approved by CE, UL and ect, as well as in compliance with RoHS requirement, quality is reliable and guaranteed.

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