Features:

• The cold-rolled steel shell is used, and the surface is treated by electrostatic spraying
• DC motor, quiet, longer service life;
• No working medium (no oil), no pollution, providing a clean vacuum environment;
• Non friction membrane motion is adopted, which does not generate heat, has no friction loss, and extends the working life;
• it is small in size, light in weight, easy to move, saves laboratory space, and is convenient for repair and maintenance.