Maximum speed 22,000rpm, maximum centrifugal force 43,330xg. Max Capacity 3,000ml with Batch-type rotor Z3. Memory function is equipped for start quick operation. Savable 6 data files for normal operation 4 data files for Step operation, 1 data file for Density gradient operation mode. Automatic rotor identification sensor. Brush less high frequency motor. 37 Kinds of rotors from low speed to high speed. Safety function equipped self-diagnosis display function and alarm.