This machinery is composed of parallel twin-screw extruder, granulate die head, granule cutting machine, three-grade air supplying system. 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 wear-resistance and corrosion-resistance. The machines can be combined freely according to the material characteristics and production process, so it is of widely use. Die head is made from high-quality mould steel, under hard chrome plating treatment. The reasonable-distributed material running channel can ensure the uniform extrusion of the granules without mutual influence. The unique three-dimensional cooling structure and the new-type multi powerful blower cooling mode make the cooling effect better. Besides, the precise cutter ensures the even and smooth surface of the products. The speed frequency regulation meets different granulating requirements. This production line has features of high production efficiency, low energy-consumption, etc, especially applicable to the WPC granulation process. Machine pictures of WPC granule making machine WPC granulator 1, Parallel double screw extruder for WPC granulator: with moisture exhuasting system 2, die head for WPC granule making machine WPC granulator:  hot cutting with smoke sunction 3, cooling devices for WPC granule making machine WPC granulator: three steps cooling fan with material silo