the surface scratch on meat during process so as to better protect the natural meat structure. All material can be overall and evenly massaged without hurt in the machine. The mixing shaft speed of the CR series massor type mixer can varies within 2-20rpm, which can be steplessly adjusted so as to meet the requirements of low-speed massaging, vacuum food preserving and vacuum rolling. PLC is adopted for automatically controlling the massaging speed, service time and intermittence time, setting