PURPOSE: To obtain a good product, by providing a cross slide table and a compression molding apparatus on the processing stand provided in opposed rolation to a screw type injection apparatus to spread a molding material throughout each part.

CONSTITUTION: A screw type injection apparatus 2, a processing stand 3, a cross slide table 4, a compression molding apparatus 5 and a control apparatus 6 for controlling these elements are provided. Even in a large molded product having a complicated shape, a predetermined amount of a molding material is spread corresponding to the inner volume of each part and a good product can be obtained. Heating apparatuses 45, 39 are provided to an upper mold 44 and a lower mold 36 and a stock material is adequately distributed corresponding to the shape and volume of a cavity prior to compression molding.