The pump types used in the coffee machine are mainly the following, and each pump type has its specific characteristics and scope of application:
Vibration pump (also known as vibration pump or shock pump) :
Features: Vibration pump is the most common type of pump in the coffee machine, simple structure, relatively cheap price, easy to maintain. It drives the piston through the electromagnetic coil to produce pressure water flow, but the noise is larger.
Scope of application: Suitable for home use of coffee machines and espresso machines. Because the pressure boost is slow, the ideal pressure can not be reached at once, and the quality of the extracted coffee is relatively uncertain, so it is not suitable for commercial use.
Rotary pump (also known as vane pump) :
Features: The rotary pump is a high-end and professional pump type in the commercial coffee machine. It transmits pressure to the water supply through a high-speed rotating rotor, creating a high-pressure water flow. This type of pump is complex to operate and requires technical and maintenance knowledge. The pressure provided by it is relatively stable, the noise is small, it can work continuously for a long time, and the displacement is large.
Scope of application: Mainly used in commercial coffee machines to ensure the stability of the extracted coffee quality.
Check valve pump:
Features: Check valve pump is a relatively new type of pump, rapid response, can work under higher pressure, more durable.
Scope of application: Mainly used in commercial coffee machines, the price is generally more expensive than vibration pumps and rotary pumps.
Diaphragm pump:
Features: diaphragm pump is a high-end pump type, less noise, stable performance, but the price is relatively high. It completes one-way liquid transportation through the change of film motion.
Scope of application: For commercial coffee machines and high-end home coffee machines.