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Does the fan volume of booster cooling fan relate to the number of blades?

Does the fan volume of booster cooling fan relate to the number of blades?

Nowadays, there are more booster cooling fans and moulds. Among them, the number of blades is confused in the design or use of customers. Is it better to use more blades or fewer blades?
 
In fact, there is no equivalent relationship between the amount of fan and the amount of wind pressure and blades. However, at the same speed, the amount of air with more blades is larger, but the speed of blades is more, the general speed is not high, the same motor size, the speed will be lower.
 
For example, 12038 is a commonly used booster cooling fan, 11 blades of air flow and wind pressure 230CFM, 27.5mmH_2O, speed can only achieve 4300 rpm, 7 blades of this, air flow and wind pressure 241 CFM, 31.3mm H_2O, but the speed is 6200 rpm. From this point of view, the wind volume and pressure of 7 leaves are a little larger than that of 11 leaves.
 
The above two types of fan have high utilization rate in the mining machinery industry, but the cost of 11 blades is lower. Therefore, the consumption is larger, and the data of the fan volume and pressure of the two cooling fans are very similar. Therefore, from this point of view, the number of blades is not the decisive factor to determine the size of the wind.
 
Shenzhen Jiangshanlai Electronic Technology Co., Ltd. was founded in Shenzhen, China in 2005. It is a large company specializing in customizing, developing, manufacturing, selling and serving DC brushless motor, DC cooling fan, cooling fan, DC brushless fan, DC bracket fan, supercharged cooling fan, miniature cooling fan, DC cooling fan, DC blower and non-standard fan, DC fan wholesale manufacturer, supplier of DC fan.