4.72 Inch Axial 24v Dc Motor Brushless 120mm Case Fan Low Noise 120 X 120 X 38mm

4.72 Inch Axial 24v Dc Motor Brushless 120mm Case Fan Low Noise 120 X 120 X 38mm

120 X 120 X 38mm 4 . 72inch axial 24V dc motor brushless low noise cooling fan with China factory wholesale

Fan front view

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 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
• We can also provide fans with longer use time.
• On time delivery

Question

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

What is a bearing ?

Fan bearing includes Sleeve Bearing and Ball Bearing , life expectancy of sleeve bearing fan is 30000hours , while ball bearing is 55000hours 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 . What is 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 .

Application : equipment , electronic equipment , medical equipment , computers , power supplies ,

welding machines , packaging , printing equipment , satellite communications , CNC , machinery and

office automation products such as ventilation and cooling purposes . Electrical Fireplace , Oven , Wall

Cooler , Disinfecting cabinet , Warmer , Microwave , Refrigerator , Cooler , etc .

Shenzhen Topfan Technology Development 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 .

Shipment

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 .

1 . Samples delivery time is 7 working days . ( The quantity of free samples among 2 - 3 pcs . )

2 . Fans quantity : 1K ~ 5K ,the delivery time is 7 ~ 10 working days ;

Fans quantity : over 5K , the delivery time is 15 - 20working days

3 . International express : UPS / DHL / FEDEX and so on .

Any more information , please feel free to contact Mona ——→

We will reply you within 2 hours . Thanks

Skype : Mona Yang

QQ : 3146648329

Tel : 86 755 26070992