Ofan Electric Co., Ltd
Where there is a fan,there is OFAN
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Electric Power Ec Centrifugal Fans 220mm 225mm Pa66 Rail Transportation
1. EC Motor – Principle
With an EC motor the electronic circuitry stands in lieu of the traditional mechanical commutation meaning the right amount is being supplied in the right direction at exactly the right time providing precise motor control.
2. Permanent-magnet brushless DC motor within the rotor
The stator is driven by electronic switches (which replace the Carbon brushes), controlled by a microcontroller.
Electronic system (hall effect sensor or software is used to recognize the rotor position)
AC operated (230Volts Single phase or 380/480Volts 3phase, 50/60Hz)
3. Advantages of EC technology
Very high degree of efficiency
Integrated controller (continuous control)
Very simple connection
Additional functions (pressure control, airflow, speed, temperature, air quality, etc.)
Smaller-sized motor for the same level of performance
Less power consumption
4. FAQ
1. Are you a factory or trading company?
We are a factory which specialized in produce external rotor motor about 10 years. We accept OEM or ODM
2. How do I know which model I should choose
Please tell us the fans pressure and ofan and size of fans’ diameter you need. We will study and suggest you the right model.
3. Can we buy a sample for testing?
Sure, you are welcomed to buy a sample before mass order.
4. if the fans doesn't work well, what shall I do ?
If happens within one year, we will take in charge of the maintenance, or send you a new machine freely.
If after one year, we will supply you the right parts to replace at low price.
5. What about delivery date?
Product can be sent to you within a week if there is stock after receiving deposit or 100% payment from customer. If there is no stock, the delivery date will be 15 to 30 days.
