How to choose a more reasonable DC axial fan

When choosing a DC axial fan for the first time, because there is no concept about the air volume and noise of the DC axial fan, and the price of the DC axial fan may be unclear, so when choosing a DC axial fan, there is no way to start. If this is the case, there is no need to do it. The first step is easy to do in three steps: choose a DC fan of the largest size that you think can be installed, determine the voltage, and ask the DC axial fan supplier to do a test first. Look at the effect, if the sample is not suitable, confirm the relevant parameters by the following method. Because the fan speed is proportional to the voltage, increase the voltage by 20% or decrease by 50%. If it is adjusted to which voltage value, test the air volume , Noise is all right, write down the voltage value at this time, ask the supplier to design a 12V fan according to the speed and air volume of this voltage. The second step: redesign the DC axial fan according to the parameters confirmed by the customer. (Of course, if the first step fails to achieve the desired effect in any way, you need to change the size of the fan. At this time, you can discuss the new size with the fan supply and follow the first step) Step 3: According to the product warranty time and environment What kind of bearing should be used under severe conditions will directly affect the cost of the Dc axial fan. The life of oil-impregnated bearings is 20,000 hours under normal temperature and normal conditions, and the life of double-ball bearings is 50,000 hours under normal temperature and normal conditions. In high temperature and dusty environments, the life of oil-impregnated bearings decreases faster than that of double ball bearings. Of course, the price It is also cheaper. Welcome to visit the heat dissipation classroom and news center of the cooling fan manufacturer again. The copyright belongs to the cooling fan manufacturer and only represents personal opinions. Please do not reprint the whole article. Any violation will be held for legal responsibility. If you need to learn more about the cooling fan manufacturer For product introduction, please click Product Center