icrocomputer control, DC brush-less motor, stable operation, low noise and high speed accuracy. Touch panel, programmable operation, operation data can be set according to demands and stored automatically. LED display, user-friendly interface, simple and convenient operations. The real-time conversation of speed and RCF is convenient for operation. Self-locking device, lid safety device, over-speed safety device, and automatic alarm device, etc. It has microprocessor control, DC brush-less motor. The SERO rotor is used for erythrocyte washing. The HLA rotor is for lymphocyte washing.