Underwater Granulation Production Line
A twin-screw underwater pelletizing system typically consists of a start-up valve, die head, die head temperature control system, pelletizer head, water system and fittings, particle dewatering machine, and control system. Underwater pelletizing operation mode: When uniform, high-temperature molten material enters the die head flow channel from the end of upstream equipment (reactor, screw extruder, melt pump, etc.), the material is immediately cut into droplets by the high-speed rotating pelletizer blades as it leaves the die orifice and enters the processing water. Due to the physical property of maximizing particle specific surface area and the temperature difference between the molten droplets and the processing water, the droplets solidify and form near-spherical particles. This "hot-cut then water-cooled" pelletizing method makes it well-suited for pelletizing materials with poor molten strength, high viscosity, and high heat sensitivity.
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Water Cooling Pelletizing Productioniie
applicable range: PP, PE, ABS, PBT, PA, AS, PET, POM, PC etc.
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Air-Cooling Hot-Cutting Granulation Production Line
Reinforced and Modified: PE, EVA, etc. + Calcium Carbonate, Talc, Titanium Dioxide, Carbon Black
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Parallel co-rotating twin screw extruder is designed with modular screw elements and barrels without extrusion head at the end so the melt can drop into the single screw extruder directly. Single screw extruder will complete extrusion and pelletizing process to realize steady output of material under higher rotating speed. This kind of two stage extruder features high capacity, steady discharge etc. According to material and processing, you can choose different pelletizing method, such as water cool strand, air cool hot cutting, water ring and underwater pelletizing or choose various molds or related auxiliary equipment for directly extrusion molding.
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