• 2012,7:Factory expansion again, Set up the radiator module division, passed UL certification.
• 2011.5:Factory expanded, moved to Dongguan and found Dongguan Hesen Industrial Co.,Ltd.
• 2007.4:Factory passed ISO9001 quality system certificate. CE certificate passed, manufacture all series of AC and DC FAN.
• 2004.5:Build Shenzhen Haixinghe Electronic Co., Ltd, creat our own brand "HXH".
• 2001.8:processing plant was given priority to with OEM, manufacture part of the model fan for part of the customers.

1. 108pcs/carton, flexible wrapping and standard carton.
2. 2-3 weeks after confirm your order and receive your payment.
3. We ship goods to worldwide! Product will be ship by EMS, FedEx, DHL, or UPS.
4. Please check with your local agency as you might be required to pay custom duty/tax on import of this goods, all custom duty/tax pay by buyer. We HXH do not responsible for any custom duty or import tax.
5. All items will be packed safely by our professional logistic department, please check the product before Signoff, if your item is damaged or lost by Express, please Reject. Meanwhile, please contact us immediately so we can assist with correcting the problem A.S.A.P, And we will report to the Express and ask for refund.

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

a. fan voltage

b. fan current

c. fan speed

d. fan airflow

e. fan noise

f. fan lifespan

3. What is a bearing?

Fan 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.

a. Early Life Test

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.

b. On-going Reliability Demonstration

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.

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

Please contact us for customized fans.

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