It has the advantages of compact structure, small volume, light weight, low noise, and low vibration
It has good geometric symmetry, so the vibration is small and the operation is smooth.
The pump chamber does not require oil sealing and lubrication, which can reduce the pollution of oil vapor to the vacuum system
There is no compression in the pump chamber and no exhaust valve. Simple and compact structure, insensitive to dust and water vapor in the extracted gas