This machinery is composed of parallel twin-screw extruder, granulate die head, granule cutting machine, three-grade air supplying system, storage chamber. The parallel twin-screw adopts modular construction, with advantages of all gear-closing and strong self-cleaning. The barrel has a good exhaust effect. The bi-metal alloy bushing is of war-resistance and corrosion-resistance. The machines can be combined free according to the characteristics of materialsand production process, so it is widely use. Die head is made from high-quality mould steel, under hard chrome plating treatment. The reasonable-distributed material runing channel can ensure the uniform extrusion of the granules without mutual influence.