small blower fan 5cm 50*50*20mm 5020 5V 12V 24V industrial exhaust blower Centrifugal Fan

1. Are you a manufacturer or a trading company?

Yes, we are a manufacturer, we have factory in Shenzhen.

2. What kinds of products supplied by your factory?

We provide DC cooling fan, DC blower fan, AC cooling fan,Bracket fan and RGB cooling fan.

3. What are kinds of information provided by the customer before inquiry?

Please kindly advise the size, voltage, the type of bearing, the speed of fan , or air flow.

4. What can I do if we can not find the suitable fan model in the fan list?

Please contact us for customized fans.

5. Can I have samples for testing before ordering products?

Yes, we're glad to offer samples before a order for goods.

6. Can we put our company logo on the label?

Yes, we could use your company brand on the fan.

7.How do we carry out quality control?

There are two ways:

1.This is used as a mean of process control aimed at identifying any latent manufacturing problems and determining the effectiveness of burn-in. Every day, 5 samples will be picked up randomly from one of the production lines for burn in at 50°C+/-5°C for 24 hours.

2.This is a longer-term program aimed at providing data on continuous basis to demonstrate the reliability of product. 10 units per month are randomly 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.