The rosin size saponifying cooker mainly consists of the cooker body,discharge value with operating mechanism,driving unit and agitating shaft.The ZDX1 type rosin size saponifying cooker is class 1 low-pressure jacket type heat exchanger.There is a jacket in the cooker body.The rosin can be saponified by steam heating in the jacker.There is also an agitating unit in the rosin size cooker.The agitating blade is of propeller-typed.Agitating can speed up saponification.Discharge value is manual value.Its operation is simple,easy and conveninet.