Products

High-precision Parallel Twin Screw for Plastic Extrusion Machinery

Commonly used parallel twin-screw models:

Technical Parameter

model

L/D

PVC output capacity
(kg/h)

screw rotation speed
(rpm)

driving motor
(kw)

screw dia
(mm)

NHY75

26-36

220-350

45

45

75

NHY90

26-36

280-460

45

55

90

NHY110

26-36

350-650

45

75

110

NHY120

26-36

500-800

45

110

120

NHY130

26-36

680-1000

45

132

130



Nanhaiya's parallel twin-screw include three types: fully meshing, partially meshing, and non-meshing. The fully meshing type is the most commonly used in the plastics extrusion field due to its small gap and excellent material shearing and mixing effect.


Parallel Twin Screws are the most important application in the plastics industry, covering the entire chain from raw material modification to product molding.


1. Plastic Modification and Compounding: This is its most typical application. Utilizing the strong shearing and dispersing capabilities of the twin-screw, plastic matrices (such as PP, PE, ABS) are uniformly mixed with additives (such as glass fiber, carbon fiber, flame retardants, and antioxidants) to prepare functional modified plastics with reinforcement, flame retardancy, and conductivity. Examples include glass fiber reinforced PP used in the automotive industry and flame-retardant ABS used in the electronics industry.


2. Color Masterbatch and Functional Masterbatch Preparation: High-concentration pigments, dyes, or functional additives are mixed with carrier resins, extruded and granulated using a twin-screw extruder, to produce color masterbatches (for plastic dyeing) or functional masterbatches (such as antistatic masterbatches and antibacterial masterbatches), solving the problem of uneven mixing in single-screw extruders.


3. Plastic Extrusion Molding: Used for the extrusion production of pipes, profiles, sheets, films, etc., especially suitable for processing high-viscosity, difficult-to-plasticize plastics such as PVC and PC. For example, in the extrusion of PVC drainage pipes, door and window profiles, and PC polycarbonate sheets, the twin-screw extruder ensures uniform plasticization of the material and reduces product defects.


4. Recycled Plastic Processing: Processes waste plastics (such as waste PP and PE). Through the shearing and heating of the twin-screw extruder, impurities are removed, stress is relieved, and the plastic is re-plasticized and granulated, achieving plastic recycling and reuse.


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Aluminum-Plastic Plate Parallel Twin Screw

Aluminum-Plastic Plate Parallel Twin Screw

Nanhaiya Aluminum-Plastic Plate Parallel Twin Screws are manufactured from high-quality 38CrMoAlA nitrided steel, which delivers excellent wear resistance, corrosion resistance, and high strength. Our twin-screws can be fully customized to your material requirements, including hot work steel, cold work steel, high-speed steel, HIP powder steel, and PTA alloys. Designed for durability and high efficiency, they ensure stable production and superior product quality. Widely used in plastic and rubber extrusion, PVC, PE, PP, and other polymer processing, as well as in compounding, granulation, and high-performance material production.
Rubber And Plastic Parallel Twin Screw

Rubber And Plastic Parallel Twin Screw

Nanhaiya Rubber And Plastic Parallel Twin Screws are manufactured from high-quality 38CrMoAlA nitrided steel, which delivers excellent wear resistance, corrosion resistance, and high strength. Our twin-screws can be fully customized to your material requirements, including hot work steel, cold work steel, high-speed steel, HIP powder steel, and PTA alloys. Designed for durability and high efficiency, they ensure stable production and superior product quality. Widely used in plastic and rubber extrusion, PVC, PE, PP, and other polymer processing, as well as in compounding, granulation, and high-performance material production.
PS Foaming Parallel Twin-Screw

PS Foaming Parallel Twin-Screw

Nanhaiya PS foaming parallel twin-screws are manufactured from high-quality 38CrMoAlA nitrided steel, which delivers excellent wear resistance, corrosion resistance, and high strength. Our twin-screws can be fully customized to your material requirements, including hot work steel, cold work steel, high-speed steel, HIP powder steel, and PTA alloys. Designed for durability and high efficiency, they ensure stable production and superior product quality. Widely used in plastic and rubber extrusion, PVC, PE, PP, and other polymer processing, as well as in compounding, granulation, and high-performance material production.
PVC Pipe Parallel Screw Barrel

PVC Pipe Parallel Screw Barrel

Nanhaiya's custom-designed PVC Pipe Parallel Screw Barrel is made of high-end 38CrMoAlA nitrided steel, resulting in superior wear resistance, corrosion resistance, and strength. This screw barrel assembly is the core guarantee for efficient and stable PVC pipe extrusion. If you are looking for a high-performance alternative screw solution, please contact us for detailed technical specifications and a quote.
Granulation Parallel Twin Screw

Granulation Parallel Twin Screw

Nanhaiya customizes high-performance Granulation Parallel Twin Screws specifically for demanding granulation processes. The core material is 38CrMoAlA nitrided steel, providing exceptional wear resistance, corrosion resistance, and high strength, directly improving the quality and efficiency of your compound granulation output. For detailed technical consultation on finding a reliable screw supplier for your production line, please contact us.
Extruder Parallel Twin Screw

Extruder Parallel Twin Screw

Engineered for longevity and exceptional efficiency, Nanhaiya's Extruder Parallel Twin Screws guarantee stable production processes and deliver superior product quality. They are extensively utilized in the extrusion of plastics and rubber, as well as in the processing of polymers such as PVC, PE, PP, and more. Additionally, they find applications in compounding, granulation, and the production of high-performance materials.
Parallel Twin Screw from Nanhaiya offers high-quality, durable solutions with fast delivery and custom design options. Contact us today for competitive pricing.
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