Global Extrusion Industry Leader

Famous PC Plastic Sheet Manufacturing Equipment Factory & Factories

Premium Production Systems & Extrusion Hardware

Explore our high-output plastic extrusion lines developed for global industrial manufacturing standards.

Meltblown Nonwoven Production Line

High-Quality Meltblown Nonwoven Production Line Manufacturers, Factory

Engineered for medical and filtration grade media manufacturing, presenting unmatched web uniformity and fiber distribution controls.

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PP Two-Tone Sheet Extrusion Line

Best PP Two-Tone Sheet Extrusion Line Exporters, Companies

Designed for premium stationeries, functional separators, and industrial packaging requiring precise co-extrusion technology.

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Custom EVOH Multi-Layers Film Extrusion Line

Custom EVOH Multi-Layers Film Extrusion Line Factories, Company

High-barrier protective film production systems tailored for packaging, extension of shelf-life, and chemical barriers.

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China High Capacity PET Packaging Sheet Extrusion Line

China High Capacity PET Packaging Sheet Extrusion Line, For Meal Box,Cup,Bowl Cover Manufacturer, Products

Optimized twin-screw food container packaging systems integrating crystallization and efficient volatile degassing controls.

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Custom PVC PE Water Stop Extrusion Line

Custom PVC PE Water Stop Extrusion Line Exporters, Companies

Engineered profiles with precise calenders for high-performance infrastructural joint sealants and water-proofing membranes.

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Custom GPPS HIPS PMMA Sheet Extrusion Line

Custom GPPS HIPS PMMA Sheet Extrusion Line Factories, Exporters

High-speed production systems configured for protective signage, cosmetic containers, and optical diffusers.

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Famous PE and HDPE Board Extrusion Line

Famous PE and HDPE Board Extrusion Line Factories, Companies

Heavy-duty structural board systems offering high output controls, dedicated thickness regulation, and structural flatness.

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Famous PVC EVA Waterproof Sheet Extrusion Line

Famous PVC EVA Waterproof Sheet Extrusion Line Manufacturer, Factory

Specialized membrane lines utilizing targeted temperature parameters to create robust root-barrier roofing structures.

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Industrial Whitepaper: High-Efficiency PC Plastic Sheet Extrusion and Co-Extrusion Systems

Polycarbonate (PC) is recognized as one of the most versatile engineering polymers available. It offers optical clarity, thermal stability, and impact resistance. Because of this, it is widely used in automotive glazing, security barriers, electronic screens, and modern construction materials. To produce these high-performance sheets, advanced extrusion machinery is required.

The Micro-Rheology of Polycarbonate Processing

Polycarbonate processing requires a clear understanding of its rheological behavior. Unlike commodity polymers like PE or PP, amorphous PC has a high melt viscosity, which requires precise shear management and heating control. If the melt temperature is incorrect, the molecular structure can degrade, causing visual flaws, yellowing, and lower impact resistance. GWELL designs custom-engineered barrier screws and drying equipment to prevent these issues, ensuring consistent performance during extrusion.

Co-Extrusion & UV Protection Engineering

When used outdoors, polycarbonate sheets need protection from solar radiation. To achieve this, co-extrusion technology is used to apply a UV-protective coating to the sheet. This system requires highly accurate flow regulation and a feedblock that distributes the thin protection layer evenly across the main substrate. The GWELL co-extrusion system maintains consistent layers with tolerances as tight as +/- 2%, helping extend the outdoor lifespan of the sheets.

Key Technical Metrics

  • Melt Temperature Controls: Optimized precision within ±1.0°C.
  • L/D Screw Ratio: 33:1 to 38:1 optimized for PC rheology.
  • Optical Calendering: Motorized gaps accurate to ±0.01mm.
  • UV Co-extrusion Thickness: Consistent micro-meter co-extrusion layers.

About China Gwell Machinery Co., Ltd.

A leading high-tech manufacturer specializing in smart plastic extrusion lines for sheet, board, and film products.

China Gwell Machinery combines advanced engineering technology with a focus on manufacturing and design innovation. Guided by our core philosophy, "Expertise creates customers' values," we specialize in high-tech sheet and board extrusion lines. By focusing on international market standards and custom technical designs, we help our clients produce high-precision plastic sheets for demanding industries.

GWELL operates three large, modern production centers, allowing us to manage the entire manufacturing process—from material science research and design to final system integration and performance testing.

Gwell Production Facility
3

Production Bases Globally

866,000

Total Modern Construction Area

500 +

Expert Staff & Engineers

1000 +

Lines Annual Capacity Value

Targeted Solutions Across Extrusion Sectors

Our engineering services are organized into four main product categories to match different materials and production requirements.

Cast Film Extrusion Line
Board Extrusion Line
Sheet Extrusion Line
Solar Extrusion Line

Cast Film Extrusion Lines

High-precision systems engineered for manufacturing ASA, TPU, PVDF, PVB, PVA, PI, and PEVA films. These materials provide specialized properties like weathering resistance and layer integration for industrial applications.

Board Extrusion Lines

Heavy-duty extrusion setups designed for PVC, SPC, WPC, building panels, high-performance PEEK, PFA, PVDF, PE, HDPE, and ABS/HIPS/GPPS boards, ensuring uniform thickness and dimensional stability.

Sheet Extrusion Lines

High-capacity production systems for PCTG, TPO/TPE, transparent PVC, food-grade PP/PS packaging sheets, PLA biodegradable materials, and medical-grade PCL/PC sheets.

Solar & Hydrogen Energy Lines

Specialized systems for modern energy materials, producing SGP solar films, PVE cast films, polyurethane solar frames, hydrogen energy PPS separators, and high-efficiency EVA/POE encapsulation films.

Global Industrial Landscape & Local Engineering Support

Modern plastics manufacturing is highly competitive, and industrial operators require machinery that is efficient, precise, and reliable. At GWELL, we offer comprehensive machinery designs tailored to regional requirements and production standards.

Macro Industry Solutions

We integrate material feed system configurations, drying systems, multi-layer co-extrusion feedblocks, and automated handling systems into customized production lines to match specific facility layouts.

Global Compliance Support

Our systems are built to meet CE, UL, and local safety standards, helping simplify installation and compliance processes during installation and commissioning.

Future Tech Roadmap

We focus on improving energy efficiency, reducing material waste, and integrating IoT control systems that monitor production parameters in real time to optimize line performance.

The Gwell Advantage

Why leading global plastics processors choose GWELL extrusion systems.

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Modern Techniques

We collaborate with universities and research institutes to develop high-tech, reliable machinery.

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Perfect Service

Our dedicated support team provides end-to-end service with quality and efficiency.

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Strong Production Capacity

Our three major manufacturing bases support an annual capacity of over 1,000 extrusion lines.

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Wide Market

Gwell production systems are exported to customers globally, supporting international plastic sheet production.

Certified Safety & Quality Engineering

Our manufacturing facilities and processes follow strict international standards to ensure equipment reliability.

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Certification Seal B
Certification Seal C
Certification Seal D
Certification Seal E

Latest Industry News & Innovation Bulletins

Stay informed with updates on plastic extrusion technology, project launches, and R&D achievements from our global network.

Showcase news

DATE: APR 14, 2026

CHINA GWELL to Showcase Cutting-Edge Extrusion Systems

Discover Gwell's latest technical developments, optimized energy configurations, and automated handling systems at upcoming global machinery events.

POE Leather line news

DATE: FEB 11, 2026

POE Leather Production Line Technology Released

Learn more about our sustainable POE leather production systems, designed to meet the growing environmental requirements in the automotive sector.

PVB wedge film news

DATE: JUN 25, 2025

Chinese PVB Wedge Film Production Technology Advancements

Our PVB wedge-shaped film production line is engineered for high precision, helping automotive interlayer films meet strict safety standards.

Technical Q&A: Polycarbonate Extrusion Systems

Get answers to common technical and operational questions about PC sheet manufacturing systems.

How is moisture managed in PC sheet extrusion?

Polycarbonate is highly sensitive to moisture at processing temperatures. To prevent bubble formation and maintain impact strength, the raw material is dried down to a moisture content of less than 0.02% using desiccant dryers before feeding into the extruder.

What are the advantages of using co-extrusion for UV protection?

By co-extruding a concentrated UV absorber layer onto one or both sides of the sheet, we protect the underlying substrate from sun degradation. This co-extrusion layer extends the life of the sheet while reducing total additive costs.

Why is precise temperature control critical for calendering rolls?

Calendering rolls shape the sheet and define its surface finish. Precise temperature control ensures even cooling across the width of the sheet, preventing internal stresses that can cause warping or uneven thickness.

How does Gwell ensure high clarity in optical-grade PC sheets?

We build our optical lines with high-purity components, including custom-designed barrier screws, dust-controlled enclosures, and polished chrome rolls. These design choices help minimize shear stress, contamination, and surface imperfections.

Specialized Polymers & Film Production Technologies

Explore our industrial extrusion equipment configured for diverse application requirements.

Best PLA Degradable Sheet Extrusion Line

Best PLA Degradable Sheet Extrusion Line Factory, Companies

Eco-focused production systems utilizing specialized screw designs for bio-plastic crystallizing and processing requirements.

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Hydrogen Energy PPS Separator Extrusion Line

High-Quality Hydrogen Energy PPS (Polyphenylene Sulfide) Separator Extrusion Line Manufacturer, Factories

High-precision systems developed to produce PPS fuel-cell separators with consistent thickness tolerances.

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Transparent PVC Sheet Extrusion Line

High-Quality Transparent Hard Plastic Pvc Sheet Extrusion Line Exporter, Products

Robust systems engineered to produce high-clarity rigid PVC sheets for packaging and industrial safety panels.

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Famous ASA Film Extrusion Line

Famous ASA cast Film Extrusion Line Companies, Products

Designed to manufacture weather-resistant outdoor films used for protective laminates and roofing panels.

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China PCTG Sheet Extrusion Line

China PCTG Sheet Extrusion Line Manufacturers, Products

Reliable co-polyester extrusion lines configured for impact-resistant, high-transparency packaging components.

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Famous PP Hollow Lattice Board Extrusion Line

Famous PP Hollow Lattice Board Extrusion Line Factory, Factories

Optimized core-panel dies and vacuum sizing units for manufacturing durable hollow corrugated packaging materials.

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Custom PC PMMA Optic Sheet Extrusion Line

Custom PC PMMA Optic Sheet Extrusion Line Factories, Company

Specialized optical-grade systems designed to meet cleanroom standards for display panels and light diffusers.

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High-Quality CPE CPP Cast Film Extrusion Line

High-Quality CPE Cpp Cast Film Extrusion Line Company, Products

High-speed cast film production lines developed for uniform thickness and efficient roll winding.

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Start Planning Your Production Upgrade

Contact GWELL to discuss custom extrusion lines and technical configurations for your facility.

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