Centrifugal fan / with external rotor
250 mm | TEN13979251 OFAN ELECTRIC CO.,LTD


  • Type:


  • Other characteristics:

    with external rotor


1. Impeller
The impellers of fans are the fruits of high-technology and advanced skill. The blades have been applied with our own integral structure patent in China, which ensures the necessary rigidity and accuracy. The center-plate of impellers fit areo-dynamic profile. All impellers have passed balance test according to our own standard, which is higher than national standard.
2. Bearing
All bearings in fans are manufactured by brand name companies of Japan. These ball race type shaft bearings are hermetically sealed, pre-greased and self-aligning. Under, normal duties, these bearings are service free.
3. Motor
The motors inside are all newly external rotor motor with thermal protector inside and this insulation class of motor is F. We can also supply motors in other brand as client appointed.
4. Feature
Optimal motor cooling and a compact construction achieved through integrated voltage controllable external rotor motor. As a standard, the motors are provided with thermal fuses protecting them against overload. All motors are adapted for rotational speed control.
5. Application
Ventilation system, telecom rector, condensing apparatus, air conditioning, , heating technology, clean room technology, automotive air conditioning


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