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, Micro Blowers Supplier

We have been specializing in manufacturing DC blower for many years, including micro blowers and DC brushless atomic blower, all with top quality. 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. If you have any questions regarding any of the services we offer, please don't hesitate to inform us. We look forward to being of service to you.
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) 29 (max:35) 41 (max:50)
Rotation Speed (RPM) 8,000 ± 20% 11,000 ± 20%
Air Flow (CFM) 0.21 0.3
Static Pressure (mmAq) 2.17 4.66
Noise (dB(A)) at 1m 14.6 17.3
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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Our company provides DC blower and DC brushless atomic blower with excellent quality and competitive price. We can prototype new designs at incredible speed thanks to our highly skilled design engineers, harnessing our global expertise and delivering via our local teams. We are a global manufacturer of high quality DC blower and our company's internal strategy to continually improve quality and delivery meant the micro blowers was a product fit for the customers. We aim to grow our reputation by continuing to improve and expand upon the products and services we provide, welcoming any comments or suggestions you may have that can help us to achieve this goal.