40x40x20mm DC Blower Fan 4020

General Specification
1. Frame and Impeller: Thermal Plastic, UL 94V-0
2.  Lead Wires: UL Type
                        (+):Red (-):Black
3.  Operation Temperature: -10ºC~70ºC
                                        35%~85%RH
4.  Storage Temperature: -40ºC~70ºC
                                     35%~85%RH

Motor Protection
1.  Impedance Protected
2.  Reverse Polarity Protected



 

FAQ:

1. What's the difference between the sleeve and ball bearing fan?

The ball bearing brand was NMB bearing imported from Japan.

The warranty for ball bearing fan is 30,000 hours but sleeve bearing just 10,000 hours.

Ball bearing has 5-8 years lifetime,sleeve bearing has 2-3 years lifetime.

Ball bearing fan noise level won't change for a long time term,but sleeve bearing fan noise level will grown as time goes on.

Sleeve bearing is cheaper than ball bearing fans.
 

2. What kind of function can we choose for fan?

Optional function :Auto-restart ,Speed detection,Stoppage Alarm,Waterproof(IP55 optional), PWM function ,Temperature control etc.
 

3. How long can your wire length be ?

The wire length and terminal could be customized as your request. We just need the picture of connector and rank of wires for confirm.(Default wire length is 200mm)
 

4. What's your MOQ and delivery date ?

MOQ 1000PCS

Sample lead time:5 working days

Mass production:15 working days for off peak season, 1 month for peak season

Waterproof fans need 1 more week
 

 5. What's your payment terms ?

We accept Payment by T/T,Western Union, Paypal ,L/C.
100% payment for sample orders ,30% prepayment and Balance 70% before shipment.
 

6.What kind of transportation can we choose ?

Express:DHL,EMS,Fedex,UPS,IATA,TNT,China AIR Express, SFexpress etc.

Sea transportation as you request.
 

7. What's your packaging?

Knife card packing,carton package