Acceleration and Running at set speed  Reduced electricity consumption substantially by IGBT inverter    Deceleration  himac regenerative braking system re-generates max.40% electricity used for acceleration and running.  It reduces heat radiation into the room and is high efficient for energy saving.  Former models : Kinetic Energy Heat radiation into the room  New System : Kinetic Energy Regenerated to electricity and reused    Non-Contact Imbalance Protection  Continuous measurement of oscillation over the entire rpm range  The system immediately detects abnormal vibrations and stops rotation.    Actual Control of Net Run-Time(PAT.)  The timer starts when the set speed is attained by himac original actual run timer function.  Enables to obtain high-reproducibility separation.    Pre-cooling Chamber (PAT.)  Maintaining temperature inside chamber room at low temperature with preventing from icing, in order to reach target temperature shortly