Shenzhen Topfan Technology Development Co., Ltd.
Shenzhen Topfan Technology Development Co., Ltd. We just do the best cooling fan!
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metal frame 50 X 190mm ac cross flow fan radial brushless motor for elevator and refrigerator
Product details 
Notice
- If you want another rpm or voltage or special functionm Please contact with us directly
- The size , voltage , power & speed can be made according to your requirements
- Could be made with waterproof dustproof function
- Could be made with control speed ( PWM ) read speed ( FG ) and alarm ( RD ) function
- We ' re professional manufacturer of cooling fans for 11 years ' experience
- We offer 30000 hours warranty for sleeve bearing fans , 50000 hours warranty for ball bearing fans
- We can also provide fans with longer use time
- On time delivery
Application
The biggest characteristic of the cross flow fan is that the fluid flows twice through the fan impeller . The
fluid flows in the radial direction and flows along the radial direction. The intake and exhaust directions
are in the same plane , and the exhaust gas is evenly distributed along the width of the fan . Because of
its simple structure , small size , high dynamic pressure coefficient to achieve a longer distance , widely
used inlaser instruments , air conditioning , air curtain equipment , dryers , hair dryer , household
appliances and grain combine harvesters .
Factory
Shenzhen Topfan - China Development Technology Co . , Ltd ,is a medium-sized enterprise which
integrates production , research , development and sales . It has 3000 flat plant and professional design
and production team . At present , the company has production development department , Q & C
department , R & D department , the domestic sales department and overseas sales department .
You could choose the shipping way by yourself .
You could choose the freight forward company by yourself .
We could arrang the shipment according to your require .
If you have any requirements you could contact me soon .
More questions:
1 . What is a DC Axial Fan ?
An DC fan is usually powered by 3v , 5v , 12v , 24v , 36v and 48v . It blows air along the axis of the fan , or parallel to the track of the blade axis .
Standard DC Axial fan sizes include 20mm , 30mm , 40mm , 50mm , 60mm , 70mm , 80mm , 92mm , 120mm , 150mm , and 200mm .
2 . How to choose a DC fan ?
To choose a DC fan , you should consider the points below
√ fan voltage
√ fan current
√ fan speed
√ fan airflow
√ fan noise
√ fan lifespan
3.What is a bearing ?
Bearing includes Sleeve Bearing and Ball Bearing , life expectancy of sleeve bearing fan is 30000hours , while ball bearing is 50000hours or more
4 . How do we carry out quality control ?
Usually , there are two ways to monitor reliability during the manufacturing process .
⇒ Early Life Test
This is used as a mean of process control determined at identify any latent manufacturing problems and determining the effectiveness of burn - in . Every day , 5 samples will be picked up from one of the production lines for burn at at 50 ° C + / - 5 ° C for 24 hours .
⇒ On - going Reliability Demonstration
This is a longer - term program at at providing data on continuous basis to demonstrate the reliability of product . 10 units per month are diverse collected from one of the production lines for burn - in for 168 hours at 50 ° C + / - 5 ° C . Units are monitored and tested on daily basis . Failed units will be analyzed and corrective actions taken where necessary .
5 . About the divery time
Sample lead time : 5 – 7 days
Mass production Delivery lead time : 1 - 3 weeks ( Depend on the quantity )
Delivery Ways : DHL , UPS Door to Door service , By Air , By Sea , etc .
6 . What can I do if we can not find the suitable fan model in the fan list ?
Please contact us for customized fans .
◊ If you want another rpm or voltage or other reqirement , pls contact me for more details , thanks!
◊ For Special Cooling Fan , Such as : moistureproof , waterprrof , turbocharger , soft start , Reversible , temperature control , PWM speed control , the RD alarm and the FG signal etc , pls contact me free .
More information,please feel free to contact Mona →
Thank you