Wanganui Changzhou Drying Equipment Co., Ltd. vacuum rake dryer efficient heat transfer capabilities advantages provided by the hollow blades arranged in the hollow shaft wall, the jacket wall heat transfer accounts for only a small part. The unit volume of the heat transfer surface of the device, saving device area, reducing infrastructure investment. Vacuum rake dryer by dry materials continuously fed by the screw feeder quantitatively dryer feeding port, the material into the device behind, flipping through the rotation of the blades so that the material, stirring constantly updated heating interface with the body and the blade contact is sufficiently heated, so that the material contained in the evaporation of the surface moisture. Drying Equipment Co., Ltd. Changzhou Vanguard clear product positioning, fair price, perfect after-sales service, the drying industry effort to build brand strength, vacuum rake dryer with a jacket W-shaped housing, docks and transmission parts, the entire drying process of the material in a closed state, organic vapors and odor of gas in a confined atmosphere sent to the exhaust gas treatment device, to avoid environmental pollution.