The choice of peristaltic pump motor

Number of hits:12922017-01-06 08:16:13　Sources: http://journeypump.com/jsfw/n43.html

Peristaltic pump motor is generally divided into DC brush motor, brushless DC motor, AC motor, stepper motor, etc.

DC brush motor:

Advantages: low cost, easy control, low noise.

Disadvantages: short life, the need to replace the brush regularly, in the course of operation by the load and power supply voltage changes, the transmission stability is poor, slow start, can not quickly start and stop operation. Low speed instability, creep.

Brushless DC motor:

Advantages: no brush design, life is much higher than the brush motor, the noise is small, torque constant.

Disadvantages: the need for special control circuit driver, the operation of the load and power supply voltage changes, although there is a closed-loop control, but the overall stability is not high. Low speed instability, creep.

Alternating current dynamo：

Advantages: low cost, low noise, long life.

Disadvantages: the starting torque is small, the speed is not easy to control, in the course of operation by the load and power supply voltage changes, low speed instability, creep.

Stepper motor：

Advantages: speed controlled by pulse, low speed or high speed stability, not affected by voltage and load changes, long life.

Disadvantages: noise than the rest of the motor, according to the performance of the motor at a certain speed resonance. Need special control circuit driver. Low efficiency, the same power, the torque is higher than other small motor.