The powder in hopper is sent to the mixer passing the calibrated and mixed fully with water, next goes into the solution box, The mixed liquid forms into liquor with a mean concentration through stiring for many times, then enters the solution storage chamber, finally will be poured into the medical feeding point by the measuring pump. 2. Accurate calibarted feeder, driven by no-class speed changer and it can easily adjust the quantity of deedings and make up the concentration of liquor in a large scale. 3. It has the functions of controlling liquid level, checking medicals, feeding aid.