AC/EC/DC External Rotor Motor Powered Backward Curved Centrifugal Fan
1. The external rotor motor powered centrifugal fan has the characteristics of compact structure, reliable operation, low noise, easy installation, and high efficiency, etc.
2. There are single-phase and three-phase power input types for the external rotor motor powered centrifugal fan. And the centrifugal fans are widely used in the industries of air conditioning terminal system, IT & Telecom, FFU, Fresh air system, and ventilation, etc.
3. There's a built-in thermal protector for the single-phase motor, and the motor can be operated in the temperature from -30 to 60 degrees Celsius. If the customer needs a built-in thermal protector for the three-phase motor, please note us while placing the order.
4. The speed of the motor can be controlled by a transformer or VFD. We also can change the speed by changing the motor's △- and Y-wiring for the three-phase motor, and by using the shifts taps vary method for single-phase motor.
5. We would need the operating point parameters of the motor such as speed, power, and even the assembly size if the customer is only ordering the motor for their application. To get a suitable motor performance, we would prefer an impeller and housing for doing testing and research if the customer is going to use the motor for powering their centrifugal impeller.
6. Noise Level. The noise level defined for our motor fan is the sound pressure level. The distance for doing the noise level test is 1m from the test point to the inlet hose according to the national standard requirements.
7. Average of our motors The bearing used on our motor is a maintenance-free ball bearing, and the average life rating is L10 which is between 30,000 to 50,000 hours based on different operating conditions.
8. The external rotor motor powered fans are CCC, CE, UL, and CUL approved.
Certifications and Patents
1.Q: I don't find the specification that meets our requirement.
A: Don't worry. We have hundreds of fans. Send us messages, we will recommend the right one to you.
2.Q: How about the delivery time?
A: Generally, ready to ship order will be shipped in 15 days after payment.
3.Q:What is your main market?
A: We have UL, CE certificate, North America, Europe are our main market we also have client in Southeast Asia, South America, Africa and so on.
4.Q: Can I have samples for testing before ordering products?
A:Yes, we sincerely suggest that customers should have some samples of required fans for testing because the truly performance of fans can be fully demonstrated after testing is conducted. More info about samples and fans, send us message below.
5.Q: What is your QC procedure?
A: We have a strict QC system. Before manufacturing, all raw material will be QC sampled. During manufacturing, when each part is finished, it will be QC sampled. We will assemble samples before mass assembling. After manufacturing, all finished fans will be QC tested.
Send us messages to get more information and catalog.