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The difference between brushed micro vacuum pump and brushless micro vacuum pump

June 13, 2023
The difference between brushed micro vacuum pump and brushless micro vacuum pump

 

At present, the common micro vacuum pump and micro air pump ( hereinafter referred to as micro vacuum pump ) are generally electric, that is, the motor and the pump body are integrated, and the pump is operated by DC power supply. Therefore, it can be divided into the types of motors: brushed micro vacuum pumps and brushless micro vacuum pumps.

Brushed, brushless refers to the micro vacuum pump, the micro air pump itself integrated in the motor, whether the use of "carbon brush". If there is, there is a brush motor, and vice versa is a brushless motor.

[brushed micro vacuum pump]

Features: The torque of the brush motor is generally relatively large ( commonly known as "Jinda" ) , so the negative pressure, flow and other parameters of the brush micro vacuum pump can be made relatively high, the domestic high-end brush motor is relatively mature, ranking Compared with the previous manufacturers of medium and high-grade micro vacuum pumps ( such as Xincheng Technology ) , the quality, performance and reliability of such brushed products are relatively good. Such as micro vacuum pump VCH1028 (new is sincere), negative pressure up to -90Kpa , flow up to 28L /min , the brush motor has a large torque, which can achieve high vacuum and large flow. The overall cost of a brushed micro vacuum pump is lower than that of a miniature vacuum pump using a high-grade brushless motor; however, the life of a brushed micro vacuum pump is slightly shorter than that of a high-grade brushless one.

[Brushless Micro Vacuum Pump]

Features: Due to the use of electronic commutation instead of carbon brush reversal, there is basically no electromagnetic interference, and long life, especially the use of high-grade brushless motor ( such as the new brand of miniature vacuum pump ) , the life is often close to tens of thousands of hours ( Full load ) ; especially suitable for continuous operation around the clock, such as long-term online sampling pump; some can even run continuously for more than 1 year ...

Moreover, it can also be “regulated”, that is, the speed of the duty cycle motor (PWM speed regulation ) is adopted , so as to achieve the purpose of indirect pump flow, and the corresponding control circuit can even achieve advanced voltage, constant current, constant speed and the like. application. Such as micro speed vacuum pump VLK4506 (new is honest), negative pressure -55Kpa , flow 6L /min , is a medium flow, medium vacuum, often used for online gas sampling, long-term vacuum and so on.

Brushless micro vacuum pump is the development direction of micro vacuum pump and micro air pump industry in the future, so the general selection principle is: brushless can be used with brushless vacuum pump. Because the life of a brushless vacuum pump is longer than that of a brush. It is especially suitable for continuous operation around the clock, or where frequent start and stop is required.

Whether it is a micro air pump or a micro pump, it is best to choose a good reputation, professional and well-known manufacturers, so that quality is guaranteed.

  "New Weicheng" brand micro-pumps, micro pumps, adhere to professional philosophy ....

 

 

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