604139 Series desk-top type structure, driven by brushless DC stepless speed regulating motor, rotation speed and centrifuging time controlled by microcomputer, working parameters set via the keyboard, digial display of the centrifuging time, rotation speed and centrifugal force.

The rotor of this machine is hot press formed of Nylon composite material, which can be matched with many conventional test tubes.

—Driven by brushless stepless speed regulating DC motor, quiet and clean

—Funished with a special key for centrifugal force through which the centrifugal force can be set or can be observed at any time during the running

—Automatic stop upon opening of the door to ensure the operational safety.