Sunon's cooling products are used in a broad variety and growing number of computer, networking, industrial electronics applications, telecommunication equipment and consumer electronics. Today, Sunon provides the industry's broadest range of fans and blowers with award-winning innovative technologies such as Magnetic levitation System（MS）, Green Motor Design（GM）, which helps to create low-noise, space-saving, cost-effective cooling environment.

Holding 3 full line factories located in Taiwan and additional 2 in China, SUNON possesses an enormous capacity of 60,000,000 units per year, risk-free scalability and shipment are ensured. Moreover, worldwide marketing and logistic systems were built under its globally established subsidiaries in 5 business areas-USA, Europe, Japan, Singapore and Hong Kong.

What keeps Sunon always one step ahead
Innovation is Sunon's cornerstone. Since its establishment, the CEO of this company, Alex Hong, places research and development above all else to create market leading precision miniature cooling fans. There are 432 patents have been obtained in 23 countries and another 460 are pending. Among all the technologies developed, Magnetic Levitation System and Green Motor technology could be viewed as Sunon's latest, most advanced, and unrivaled innovations.

Magnetic Levitation System (MS), domination of all motors
For decades, friction and noise have been the root defects for conventional fan motors. Usually after long-term operation, abrasions would be caused by the rub between the shaft and the inner surface of the bearing, creating the noise and sway common in many convention fan motors.

Sunonwelath has been dedicated to the development of a new motor structure to breakthrough this impasse and root out the imperfections of conventional fan motors. From this commitment and background the Magnetic Levitation System has come in to its own.

The Principle of MS System
When the motor with the MS technology is in operation, the magnetic force between the permanent magnet in the hub and the magnetic plate mounted on the PCB helps to attract the impeller rotor towards the end point of shaft. The weight of the rotor is entirely neutralized by the magnetic force and enables the shaft to turn without being affected by the gravity.

In this way, a constant distance between bearing and shaft is maintained naturally without causing any contact between the two surfaces.

Therefore, when the fan is operating, the highly balanced rotor assembly rotates in nearly a perfect circular motion in a consistent orbit. The center of rotation of the rotor shaft is the true centerline of the shaft and the bearing assembly.

This phenomenon eliminates any rotational vibration and abrasions between the shaft and the inner surface of the bearing even in any mounted position.

Accordingly, MS design creates unprecedented vibration-free and, therefore, noise-free operating conditions for the fan. It is of particular interest to both the PC and IT sectors of industry for thermal management control.

Because the shaft rotates evenly in a constant orbit and the rotor is held at a fixed centerline of rotation, no contact occurs. No matter how the fan is mounted, during operation there is no friction or noise, and no slanting or wobbling. Which means the bearing life is greatly extended.

MS design is suitable for all kinds of motor bearing
The MS design can be used in conjunction with all kinds of conventional motors, no matter whether it is with sleeve bearings or ball bearings. It also works excellent with Sunon's self-owned invention, the Vapo bearing, which features its specially treated inner surface for wear-resistance and impact-resistance.

Furthermore, use of the Vapo bearing with MS removes the need to use oil rings and mylar washers. This not only reduces excess friction, but also helps to evaporate and release, from the assembly, the high temperature gas, which originates from the lubricating oil. If not released properly before being solidified, the oil would release nitride particles and clog the gap between shaft and bearing bore. By adopting the new design, it's very easy to prevent the situation of the rotor becoming stuck and excessive noise being induced.

Because of the outstanding performance while operating, Vapo bearings (with the MS design inside) are now widely applied throughout our motors.

please visit our website at www.sunon.com
or contact us directly at +886-7-7163069,
by fax at +886-7-7163086
or by e-mail at sunon@www.sunon.com.tw
Press Contact Person
Gillian Wei kion@email.sunon.com.tw