Risun Expanse Corp.

Risun, as a professional R&D and integration of 『machinery, electromagnetics, electronics』 into three main areas of DC brushless motor technology company, not only has successfully innovated domestic first high-performance voice coil brushless vibration motors, but won a number of international Brushless DC micro-motor-related patents.

DC Blower, DC Brushless Atomic Blower Supplier

Since 1999, Risun Expanse Corp. has been a leading provider of personalized DC blower direct to the consumer. Our work is dedicated to the creation of progress with inspiring, innovative solutions and to a trusting partnership towards our customers and partners with common benefits. With many years of experience, we have the core technical knowledge for DC blower to satisfy our customers' demands.
RFB1804, Micro Blower

RFB1804

Micro Blower

Risun is a professional manufacturer having capabilities of brushless atomic blowers design and pass production with the state of the art in micro blower production technology.

As a professional micro thermal solution supplier, we can also offer tailor-made service. OEM / ODM partners for cooperation are earnest welcome.
  • Extra mini and slim DC Brushless Atomic Blower is extremely suitable for portable Electronic devices use.
  • High efficiency and low power
  • High airflow and low noise
  • Self-lubricative bearing used for a long service life
Application :

DC Brushless Atomic Blower provides a premium electronic cooling solution for video processing chipset, high-speed memory module, high-end smart phone, PDA , CCTV, mini projector, MID, Smartbook and so on; and is also applicable to defrosting and ventilation of goggles or sunglasses, and fuel delivery of small fuel cell.

Size :



Dimensions and Specifications are subject to change without notice, please refer to the actual product.

Specification :

Model Number RFB1804
Product Name Micro Blower
Rated Voltage (VDC) 3.3 5.0
Operating Voltage (VDC) 2.8 ~ 3.6 4.5 ~ 5.5
Rated Current (mA) 35 (max:45) 50 (max:60)
Rotation Speed (RPM) 9,000 ± 20% 12,000 ± 20%
Air Flow (CFM) 0.23 0.33
Static Pressure (mmAq) 2.74 5.58
Noise (dB(A)) at 1m 15.1 20.4
Insulation Resistance 10MEGA. Ω Min. at 500VDC
(between frame and (+) terminal)
Dielectric Strength 5mA Max. at 500VAC、60Hz、One Minute
(between frame and (+) terminal)
Life Expectancy (hours) 25,000 at 45℃
Compliance CE, RoHS
IP Rating IP58
Weight (g) 1.74
Protection Lock rotor, Auto Restart, Polarity
  • Specifications subject to changes without notice.
  • Operating Temperature:-10℃ ~ +60℃
  • Storage Temperature:-20℃ ~ +70℃

P-Q Curve :

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Micro Blower / Slim Blower is being widely used today by businesses as a way to make DC blower can do a variety of other functions depending on what specific needs the business requires. To ensure that the requirements of this policy are met, Risun Expanse Corp. will keep providing and maintaining safe and healthy working conditions, equipment and systems of work, together with adequate information, instruction, training and supervision for all employees.