Plastic pelletizing machine replacing the hydraulic screen-changing die head

Plastic Granulator — Functions: With a specially designed screw and various configuration options, this machine is suitable for producing recycled and color‑blended granules from a wide range of plastics, including PP, PE, PS, ABS, PA, PVC, PC, POM, EVA, LCP, PET, PMMA, and more. The gearbox features a high‑torque design, ensuring quiet operation and smooth performance. The screw and barrel undergo special hardening treatments, providing excellent wear resistance, superior mixing capabilities, and high production output. A vacuum vent or standard exhaust port allows moisture and off‑gases to be removed during processing, resulting in more stable discharge, stronger pellets, and consistently high product quality. Plastic Granulator — Production Principle: By employing high‑temperature melting, plasticization, and extrusion, the machine alters the physical properties of plastics, achieving both plasticization and shaping. Plastic Granulator — Applications: This granulator is primarily used to process waste plastic films (such as industrial packaging film, agricultural mulch film, greenhouse film, beer wraps, shopping bags, etc.), woven bags, agricultural convenience bags, basins, buckets, beverage bottles, furniture, and everyday household items. It handles most common types of waste plastics, making it the most widely used, versatile, and popular piece of equipment in the plastic recycling industry. Technical Features: - The screw’s geometry has been redesigned, with increased thread pitch between flights, enabling thorough plasticization and melting within the barrel during heating. - A variable‑diameter design has been adopted, extending the screw’s service life. - High‑strength 38CrMoAlA alloy steel is utilized throughout the machine, enhancing overall performance. Barrel: The barrel is crafted from 45# steel, precision‑machined, and then quenched to achieve high hardness and excellent wear and corrosion resistance. Additionally, strategically placed slots at the feed end facilitate smooth material feeding. Heating System: The heating system consists of heating bands evenly distributed around the exterior of the barrel, providing uniform heating and plasticization of the material inside. Temperature adjustments are automatically regulated via instruments on the control panel. Cooling Fan: To maintain stable internal temperatures, a cooling fan is installed at the base of the barrel. This fan activates automatically when temperatures rise, further stabilizing the barrel’s thermal environment. Die Head: To prevent reduced flowability caused by temperature drops during extrusion, a dedicated heating band is mounted on the die head, ensuring consistent, full‑flow extrusion. The die head features a parallel 15‑hole configuration, increasing output and accelerating production speed. Its parallel extrusion design ensures seamless integration with the barrel, saving time and effort when changing screen plates. Granulation System: After passing through the cooling system, the extruded material enters the granulator, where it is rolled into pellet form for convenient packaging. Equipped with a motor‑driven feed roller, the granulator automatically conveys material into the chamber, while internal rotary blades cut it into uniform pellets.

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Plastic pelletizing machine replacing the hydraulic screen-changing die head

Plastic pelletizing machine — Function:

Employing a specialized screw design and various configurations, it is suitable for production. Recycling and color‑blending pelletizing of a wide range of plastics, including PP, PE, PS, ABS, PA, PVC, PC, POM, EVA, LCP, PET, PMMA, and others. The gearbox features a high‑torque design, delivering quiet operation and smooth performance. The screw and barrel undergo specialized hardening treatments, ensuring excellent wear resistance, superior mixing efficiency, and high production output. With either vacuum or conventional venting options, the system effectively removes moisture and off‑gases during processing, resulting in more stable discharge, stronger pellets, and consistently high product quality.

Plastic pelletizing machine — Production principle:

The process of high-temperature melting, plasticization, and extrusion is employed to modify the physical properties of plastics, thereby achieving their plasticization and shaping.

Plastic pelletizing machine — Purpose:

Plastic pelletizing machines are primarily used to process waste plastic films—such as industrial packaging film, agricultural mulch film, greenhouse film, beer‑packaging film, and shopping bags—as well as woven bags, convenient agricultural bags, basins, buckets, beverage bottles, furniture, and everyday household items. They are suitable for most common types of waste plastics and are the most versatile, widely used, and highly favored plastic recycling equipment in the industry.

Technical Features

Changed Screw rod Its structural design increases the thread pitch between the screw flights, enabling thorough plasticization and melting within the barrel during heating; the use of a variable-diameter configuration technologically extends the screw’s relative service life; and high-strength materials are employed. 38CrMoAlA has enhanced the overall performance of the machine.

Barrel

The design of the barrel adopts After precision machining and quenching, 45# steel exhibits high hardness as well as moderate wear and corrosion resistance. Additionally, a slot of specified dimensions is provided at the feed end to facilitate material feeding.

Heating system

The heating system consists of heating bands that are evenly distributed around the exterior of the barrel, providing uniform heating and plasticization of the material inside. Temperature settings are automatically adjusted via instrumentation on the electrical control cabinet.

Cooling fan

To ensure stable barrel temperatures, the design incorporates a cooling fan at the base of the barrel. Automatic temperature control activates cooling when temperatures exceed set limits, thereby enhancing thermal stability.

Nose

To prevent the extruded plastic from experiencing reduced flowability due to temperature drop—thus hindering the extrusion process—a heating band of appropriate power has been added externally to the die head, ensuring consistent, full‑flow extrusion. Additionally, the die head is equipped with parallel discharge ports. The 15-hole die design increases the output and boosts production speed. The die head features a parallel‑flow extrusion configuration, with the screw thread directly connected to the barrel, enabling time‑ and labor‑saving when changing the screen pack.

Granulation system

After being cooled by the cooling system, the strip material enters the pelletizer, where it is rolled into pellets for convenient packaging. The pelletizer is equipped with a rotating feed wheel that, driven by an electric motor, automatically conveys the material into the machine, while internal rotary blades cut it into pellets.