40*40*10mm dc refrigerator cooling fan

1. What is a DC/AC Axial Fan?

An AC/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 AC/DC fan?

To choose a AC/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.

1.  What are Cooling Fans and Blowers?

Cooling fans and blowers are essential to systems that produce a significant amount of heat like computers and other electronic components. Different systems are engineered to work with specific types of fans. Cooling fans come in all shapes and sizes as well as voltage, airflow, and case size. Some are even weather resistant and can stand up against the elements. It’s important to know the specific type of fan your CPU / electronic component requires as fans and blowers are not universal. Be sure to reference the fan part number before you buy a replacement. Installing the wrong fan type can cause more harm to your computer/system.

 2.  Why Cooling Fans and Blowers are Necessary?

The CPU (central processing unit) generates the most heat in your typical system. It’s also the most temperature-sensitive. That’s why fans are necessary to aid in cooling the system. Without them, the CPU would overheat and cease functioning. But the CPU isn’t the only heat-generating component in a system. The power supply also increases the temperature of a system. So although the CPU generates the most heat, the power supply also makes it necessary to have a cooling system in place to keep temperatures low and keep it from overheating. Without a way to maintain its temperature, a system won’t last.

3.  Cooling Fans and Computers

  While electronic cooling fans are necessary for a variety of electronic machinery, one of the most common uses of cooling fans is to draw heat away from computers. There are computer cooling fans built in to all computers that are sold commercially, but sometimes these cooling fans aren’t enough to do the job. The issue is with your CPU. As you just learned, the CPU, or Central Processing Unit, generates a great deal of heat and is highly temperature sensitive. If your CPU should overheat, your system will crash. In a new computer that performs only basic computing duties, the cooling fan that comes built into your computer can keep the CPU cool and keep your system functioning. If the computer has been through some wear, or is trying to keep up with constant, complex operations, the amount of heat generated may be too much for the system to dissipate internally with its own cooling fan, which is when quality, powerful CPU cooling fans become critical. If your computer is suddenly shutting down without warning, there’s a good chance that overheating is the issue. Check your computer vent. Is there a tremendous amount of hot air coming out? This may mean your system is overworked. The right cooling fan can make all the difference in restoring your computer to full operating capacity. In addition, the sooner you replace your cooling fans, the better. Although your system is designed to shut down as soon as it begins to overheat, repeated overheating can do permanent damage to your computer’s internal components. Finding the right cooling fan for your system and installing it as soon as possible is the key to long computer life.

4.  Different Fans for Different Systems – Axial Fans and Blowers

  Cooling fans come in different makes and models, and are engineered specifically for the systems they support. Axial fans, for example, are fans designed to work with systems that have low back pressure and require less noise. These fans are quite common and are typically the most economical cooling solution. Axial fans are also referred to as box fans and are normally used in computers. Blowers, on the other hand, are designed to work with systems that have high impedance (i.e. back pressure). Blowers produce a more concentrated airflow in a system. As a result, they tend to generate a significant amount of noise.

5. Fans and Bearings

  In order for a cooling fan to work efficiently, it relies on bearings. These bearings reduce friction and allow a fan to operate at high speeds. Two standard fan bearing types are ball and sleeve. Which type of bearing a fan utilizes depends on its function as well as the speed at which it moves.

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

Please contact us for customized fans.

1.Sample Policy: Free Sample with Freight Collect

2.Sample Lead Time: 5-10 Days

3.MOQ : 100PCS

4.Order Lead Time: 15-20 Days

5.Other: OEM & ODM available

Name:EmilyZhang

skype number: emily_zhang668

wechat number:emilyzhang9420

Mobile phone:13609689281

Have any question or request feel free to contact me anytime,thanks