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FAQ

  • Q What is the working principle of a centrifugal fan?

    A Centrifugal fan relies on centrifugal fan blades to drag the air into a circular motion, and centrifugal force accelerates the airflow radially outward. These centrifugal fans move air outward through tubes or ducts, providing a more powerful and stable airflow than axial fans.
  • Q Which way should a centrifugal fan spin?

    A The direction of rotation can be counter clockwise, looking at the centrifugal blower from the outtake side and clockwise, looking at the centrifugal fan from the intake side. If using centrifugal blower fans in the opposite direction, it will result in increased fan power consumption, fan noise, even air volume it moves.
  • Q How does a centrifugal fan move air?

    A Our centrifugal blower moves air radially - the direction of the air going out is usually 0°, 90°, 180° or 270° from the direction of the incoming air. The airflow created by the centrifugal fan is directed through a duct or tube which helps to generate higher pressure airflow comparing to axial fan.
  • Q Are centrifugal fans quieter than axial fans?

    A Axial fans are a bit louder comparing to centrifugal blowers, though both c entrifugal fans and axial fans produce audible electromagnetic noise.
  • Q What is the speed of the centrifugal fan?

    A The speed of centrifugal blower is mostly decided by centrifugal blower motor. The speed of our centrifugal fan can reach up to 1350 rpm, if with a 4 poles centrifugal fan motor.
  • Q What are the three types of centrifugal fans?

    A According to the centrifugal fan blade type, centrifugal fans are divided into three types of centrifugal blower: forward inclined blades centrifugal fan, backward-inclined blades centrifugal fan and straight radial blades centrifugal fan.
  • Q What is the function of centrifugal fan?

    A Centrifugal fans use the kinetic energy of the impeller to move the airflow, which in turn moves against resistance created by ducts, dampers, and other components. Centrifugal blowers displace air radially, changing the direction of airflow (usually 90°).
  • Q How can I get in touch with you quickly for heat pump fan motor?

    A You can send us quotation of heat pump fan motors via our website, OR send an email to amanda@cpmdj.com, OR call us: 0086 18961226028 OR add WECHAT: 0086 18961226028 OR add WHATSAPP:0086 158618798425 for air source heat motor price.
  • Q How do we control quality for Air Source Heat Pump Fan Motors?

    A We have rich experience in Quantity control and improvement for  Air Source Heat Pump Fan Motors. All the air source heat pump motors from CPMDJ are 100% quality inspection. Including:

    During Production Inspection


    In-coming Raw Materials Inspection

    Initial for Air Source Heat Pump Fan Motor Inspection

    Semi-finished Parts of Air Source Heat Pump Motor Inspection

    Finished Air Source Heat Pump Fan Motor Inspection

    Pre-shipment for Air Source Heat Pump Fan Motors Inspection

    Container Loading Inspection for Air Source Heat Pump Motors

    Meanwhile, we keep communication with customers in time which enables us to guarantee customer satisfaction for Heat Pump Fan Motor.

  • Q How about your delivery time for Air Source Heat Pump Fan Motor?

    A Generally, it will take 10-15 working days to finish a 1x20GP container and 15-25 working days to finish a 1x40HQ container air source heat pump fan motor. If the quantity is more than 2 containers, about 20-35 0days, for more quantity of air source heat pump motors, we could discuss delivery solution and give you a better delivery schedule.
  • Q What are your main products?

    A As a professional Fan Motor suppliers and Centrifugal Fan suppliers, CPMDJ supplies the full support for producing producing Centrifugal Fan / Centrifugal blower, Condenser Fan Motors, Evaperative Cooler Motors, Air Conditioner Fan Motors, Fan & Blower Motors, Air Source Heat Pump Fan Motors, Universal Fan Motors, Indoor Fan Motors, Outdoor Fan Motors, Fan Coil Motors, Indoor Fan Motors, Outdoor Fan Motors, Heat Pump Fan Motors, BLDC Fan Motors, EC Fan Motors and other HVAC motors.
  • Q Air Source Heat Pump Fan Motor Manufacturer or trading company?

    A We are Self-owned Factory who founded in 2005. CPMDJ owns 3 factories, centrifugal fan manufacturer, fan motor manufacturer for centrifugal fan and stator and rotator manufacturer for our fan motor. With 15+ years of manufacturing experience, there are 100+ employees in CPMDJ factory and head office. Owning 10k+ ㎡ factory area,10+ senior engineer to offer solutions for centrifugal blower and HVAC fan motors and 15+ QC to confirm quality. We are the leading fan motor factory with OEM services to customers all over the world.​​​​
  • Q What are the most popular Air Source Heat Pump Motors ?

    A The most popular air source heat pump motors are single phase 90W, 250W heat pump motors, 3 phase 370W air source heat pump fan motors
  • Q How can I get in touch with you quickly for fan coil motor?

    A You can send us quotation of fan coil motors via our website, OR send an email to amanda@cpmdj.com, OR call us: 0086 18961226028 OR add WECHAT: 0086 18961226028 OR add WHATSAPP:0086 158618798425 for fan coil motors price.
  • Q Can we load maximum quantity of Fan Coil Motor to the container?

    A CPMDJ calculates the container space accurately based on customers' order quantity to ensure it without much space wasting when loading Fan Coil Motor. our own logistic team will ensure the best freight charge and port charge too. The maximum quantity of Coil Fan Motors for each containter can be loaded is guaranteed.
  • Q How do you control quality for Fan Coil Motor?

    A We have rich experience in quantity control and improvement for Fan Coil Motor. All the fan coil motors from our fan coil motor factory are 100% quality inspection. Including:


    In-coming Raw Materials Inspection

    Initial for AC Fan Motor Inspection

    Semi-finished Parts of Fan Coil Motor Inspection

    During Production Inspection

    Finished Fan Coil Motor Inspection

    Pre-shipment for Coil Fan Motors Inspection

    Container Loading Inspection for HVAC Fan Coil Motor

    Meanwhile, we keep communication with customers in time which enables us to guarantee customer satisfaction for Coil Fan Motor.

  • Q How about your delivery time for Fan Coil Unit Motor?

    A Generally, it will 15-25 working days to finish a 1x40HQ container coil fan motor. If the quantity is more than 2 containers, about 20-35 working days, for more quantity of fan coil motors, we could discuss delivery solution and give you a better delivery schedule.
  • Q What are your main products?

    A As a professional Fan Motor suppliers and Centrifugal Fan suppliers, CPMDJ offers the full support for producing: Fan Coil Motors, Condenser Fan Motors, Evaperative Cooler Motors, Air Conditioner Fan Motors, Fan & Blower Motors, Heat Pump Fan Motors, Universal Fan Motors, Indoor Fan Motors, Outdoor Fan Motors,  Indoor Fan Motors, Outdoor Fan Motors, Heat Pump Fan Motors, BLDC Fan Motors, EC Motors, Centrifugal Fan, and fan motor for ac unit.
  • Q You are Fan Coil Motor Factory or trading company?

    A We are Self-owned fan motor factory who founded in 2005 and owns 3 factories, fan motor factory (including fan coil motor manufacturing), stator and rotator factory for our fan motor, centrifugal fan manufacturer. 
  • Q What are the main Fan Coil Motors from your fan motor manufacturer?

    A Main fan coil motor types are: 95mm, 110mm, 120mm,139mm diameter fan coil unit motors.
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  No.90, Hehua West Rd.,Daixi,Luoyang Town,Wujin District,Changzhou,Jiangsu,China
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