When people search for how to make Plastic Extrusion Machine, they usually want to know not only the technical steps but also how a professional manufacturer designs a system that ensures efficiency, durability, and cost-effectiveness. With more than 20 years of manufacturing experience, we at HONGQI specialize in single-screw plastic pelletizing extrusion machines that deliver high output and stable performance.
A plastic extrusion machine is built on several critical components: the main motor, screw and barrel, gearbox, screen changer, pelletizing system, and control system. Each part directly affects the productivity, energy efficiency, and lifespan of the machine. While DIY methods may describe how to assemble the structure, true industrial-level production requires precision design, advanced CNC machining, and robust material choices.
With decades of hands-on experience, we have refined the process of making extrusion machines. Our factory integrates R&D, machining, assembly, and testing, ensuring every machine meets international standards. Unlike small workshops, we control the entire production chain, from CNC precision machining of screws to the independent production of screen changers, which guarantees consistency and quality.
At the heart of our extrusion machines is the Blue Ocean Huateng motor and frequency inverter. This pairing ensures:
Stable torque output even under high-load operation
Energy-saving performance through intelligent frequency conversion
Longer service life with reduced vibration and heat
This combination allows our machines to run at higher speeds without compromising stability, which translates into higher output for the same power input compared with conventional setups.
Our screws are designed with finer thread geometry and are machined on advanced CNC equipment. This results in:
Faster plasticizing and melting
Better dispersion of additives or glass fibers
Enhanced stability during high-speed operation
In practical use, this means the same extrusion line configuration can achieve greater throughput and better pellet quality.
We design and manufacture our own automatic screen changers, which ensure uninterrupted production and reduce downtime. Every screen changer is tested to withstand high pressure without leakage. Additionally, with our in-house CNC machining center, we produce key components with micron-level accuracy, ensuring tight assembly and long service life.
When discussing pelletizing methods, water cooling stands out for high-strength engineering plastics such as PA (polyamide) or PC (polycarbonate), especially when they contain 35–40% glass fiber. Compared with air cooling or strand pelletizing:
Better surface finish: Water cooling ensures smooth, dust-free pellets.
Improved fiber retention: Rapid cooling prevents fiber degradation.
Stable pellet shape: Ideal for high-speed injection molding applications.
This method guarantees that recycled materials can re-enter the production cycle with consistent quality.
A major challenge in plastics processing is recycling injection molding gate materials with high glass fiber content. Our extrusion machines address this by:
Using high-torque motors and refined screw design to handle the abrasive nature of glass fibers
Maintaining stable temperature profiles to prevent polymer degradation
Producing uniform pellets suitable for secondary injection molding
This capability is crucial for industries such as automotive and electronics, where PA/PC + 35–40% GF materials are widely used.
20+ years of industry expertise
Core motor and inverter by Blue Ocean Huateng for stable and efficient operation
Self-developed screen changers and CNC precision screws for durability
High-speed extrusion and pelletizing for maximum productivity
Proven water cooling pelletizing technology for engineering plastics with high glass fiber content
Our machines are not just built to run—they are built to perform, recycle, and deliver long-term value.
✅ Looking for a reliable single screw plastic pelletizing extrusion machine? Visit HONGQI to learn more about our customized solutions for PA, PC, and other engineering plastics.
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