Why choose HVLS PMSM fan?

With the rapid development of modern science and technology, permanent magnet synchronous motors quickly occupy the market with their own advantages, completely surpassing traditional motors, and are used in HVLS fans, named HVLS PMSM FANS. So, what are the advantages of permanent magnet synchronous motor fans?


  • PMSM itself has high power, high efficiency, and higher torque. Compared with traditional motor fans, any speed point can save power, especially at low speed;
  • PMSM has low heat generation, so the motor has a simple structure in its cooling system;
  • Small size and low noise, HVLS PMSM FANS is suitable for installation in the space with lower ceilings;
  • PMSM has no transmission gear wear, no lubrication, thus no maintenance need;
  • PMSM allows large overload current, and the reliability is significantly improved.

What is PMSM Fan?

what is pmsm fan 01
  1. PMSM is a permanent magnet synchronous motor. What is called a permanent magnet, refers to adding permanent magnets when manufacturing the rotor of the motor in order to improve the performance of the motor. The synchronous means that the rotation speed of the rotor is always consistent with the electric current frequency of the stator winding.
  2. Permanent magnet motors have a higher power-to-weight ratio, smaller size, lighter weight, larger output torque than other types of motors, and the motor’s limit speed and braking performance are also excellent, so it is the most used motor in electric products at present.

HVLS PMSM Fan Specification


Applicable for Large Space & Tall Industrial Area 18ft, 20ft, 24ft Diameter PMSM Fans.

rtfans pmsm fans page 001
Model Fan Dia.
Motor Power
RPM Air Flow
Applicable Area
RTF-DF-7E 7.3m/24ft 1.2 20~53 13,800 2.5/4.3 1,800 115 39
RTF-DF-6E 6.1m/20ft 0.85 20~58 12,000 1.4/2.4 1,380 105 39
RTF-DF-5E 5.5m/18ft 0.65 20~63 11,000 1.6/2.7 1,050 100 39
Model RTF-DF-6E
Fan Dia.(M/FT) 6.1m/20ft
Motor Power(KW/HP) 0.85
RPM 20~58
Air Flow 12,000
Current(A)380V/220V 1.4/2.4
Applicable Area 1,050
Weight(KG) 105
Noise(DB) 39

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Whether you are looking for an on-site survey, have questions about our products, are interested in becoming a partner, or just want to chat, we look forward to speaking with you.



  • An Anti-Skip Design: Unique skip resistance design, thicker steel sheet, and safety;
  • Cardan Joint Design ensure the fan is softly connected with the roof structure and installed at a balanced level;
  • Safer structure with Mortise and Tenon Joint design;
  • Double Chassis, more durable and steady, imported aeronautic aluminum alloy (AA7075), forged by 1000T machine with 570Mpa extension strength, T6 heat processing;
  • Anti-Drop Structure Design;
  • Steel Cable traction, steel cable from a different direction to pull the motor to prevent waggling and keep balance, each cable can sustain 1000kg stress;
  • German DIN933 Industrial Bolt and DIN125A locknut with high strength 8.8 grade, the practical stress it could endure is 10 times than normal;
  • All RTFANS products are covered by Pacific Insurance Agency with a total amount of up to 1.5M in USD on product liability.


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Application Solutions

rtfans pmsm fan for gym
PMSM fan for GYM

To ensure a comfortable workout experience, a PMSM fan will keep you cool while continuing the flow of fresh air.

rtfans pmsm fan for factory
PMSM fan for factory

PMSM fan is very suitable for use in factory workshops with a floor height of fewer than 5 meters. The installation is simple and flexible, with low noise and maintenance-free.

rtfans pmsm fan for small space
PMSM Fan for small space

If the floor height of the area you plan to install is only 3.5 meters, whether it is a small space such as a factory, a warehouse, or a commercial office, then this fan is perfect for you.

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