Materials:
PET (Polyethylene terephthalate) is a common plastic that can be classified according to different applications and characteristics. The main classifications include:
APET (Amorphous PET):
It has good transparency and gloss, and is often used in food packaging and blister products.
RPET (Recycled PET):
Made from recycled PET materials, it is environmentally friendly and is often used in bottles, containers, etc.
PETG (Modified PET):
Added other ingredients, it has better toughness and thermoforming properties, and is often used in medical devices and electronic products.
In addition, PET can be more finely classified according to different production processes and application fields.
Detailed explanation:
APET (Amorphous PET):
Features: transparent, good gloss, easy to process, but relatively weak heat resistance and impact resistance.
Application: Mainly used for food packaging, such as beverage bottles, food boxes, etc., and blister products, such as blister shells, trays, etc.
RPET (Recycled PET):
Features: Made from recycled PET bottle flakes or fragments, it is environmentally friendly and can reduce the demand for virgin PET.
Application: It can be used to make various PET products, such as new bottles, containers, packaging materials, etc.
PETG (PET Glycol-modified):
Features: Other ingredients are added to PET to make it have better toughness and heat resistance, and it is easy to thermoform.
Application: Commonly used in medical devices, electronic products, display racks, labels, etc., as well as packaging materials that require higher performance.
Other classification methods:
By production process:
It can be divided into injection molding grade PET, blow molding grade PET, fiber grade PET, etc., corresponding to different processing methods and application fields.
By application field:
It can be divided into packaging PET, fiber PET, engineering plastic PET, etc., corresponding to different performance requirements and application scenarios.
In short, there are many types of PET, and the selection of suitable PET materials needs to be determined according to specific application requirements.
PET clear sheet is a transparent plastic sheet made from polyethylene terephthalate (PET) resin. PET resin is a common plastic material known for its high temperature resistance, chemical resistance and excellent mechanical strength.PET sheet is a thermoplastic and environmentally friendly plastic product with high transparency, non-toxic and odourless, health and safety features, and can be directly used for food packaging. It has excellent physical and mechanical properties over a wide range, good electrical insulation, resistance to oil and grease, acids and alkalis, and low gas and water vapour permeability.
JWELL Production line
Extruder
The current measured output of CJWS95 twin-screw extruder can reach 1500kg/h
The current measured output of 150 single-screw extruder can reach 1700kg/h
JWELL Single Screw vs. Twin Screw Extruder for PET Sheet
JWELL Single Screw Extruder for PET Sheet
Widely proven process, simple structure, easy to maintain.
Ideal for PET raw materials that are pre-crystallized and pre-dried.
Lower investment cost and relatively low energy consumption.
Best suited for standard packaging-grade PET sheet.
Dehumidifying systems.
JWELL Twin Screw Extruder for PET Sheet
No need for crystallizing and drying, saving 20–30 % energy.
Better melt homogenization, ideal for multilayer or functional sheets.
Low IV (intrinsic viscosity) degradation.
Excellent melt quality.
Supports higher recycled or filled PET content.
Best for high-speed, high-capacity continuous production.
Recommended Applications Comparison
| Item | Description |
| Model | JWS120/33 PET Single-Screw Unit or CJWH75-40 Parallel Twin-Screw Unit |
| Applicable Products | PET packaging sheet, GAG, APET, RPET sheet |
| Screw Diameter | Φ120 mm (also available Φ130, Φ150, etc.) |
| Screw Design | Single-screw or parallel twin-screw with devolatilization |
| Max Forming Width | Up to 2100 mm (typical 1220 mm) |
| Sheet Thickness | Adjustable 0.15–2.0 mm |
| Output Capacity | 300–1200 kg/h (depending on model) |
| Installed Power | Approx. 180–280 kW |
| Actual Energy Consumption | Approx. 0.25–0.35 kWh/kg |
T-Die
Automatic Adjustment, Precise Thickness Control
· Equipped with electric or thermal bolt adjustment mechanisms and linked with online thickness gauge to ensure real-time thickness correction.
Polished Flow Channel, Optimized for PET Melt
· Mirror-polished internal channels reduce melt residence time and degradation, ensuring sheet clarity and smoothness.
Excellent Thermal Uniformity, No Dead Zones
· Multi-zone heating ensures die lip temperature difference is within ±1°C, enhancing sheet uniformity.
Fast Process Adjustments, Reduced Downtime
· Allows quick format switching for varying sheet thickness and width, improving line flexibility and reducing downtime.
Compatible with Multilayer Co-Extrusion
· Supports co-extrusion of A-B, A-B-A or more complex multilayer PET sheets with uniform distribution.
Made with High-Strength Alloy, Durable and Corrosion-Resistant
· Constructed with high-grade die steel with heat and nitriding treatment, resistant to thermal and chemical stress with long service life.
Seamless Integration with JWELL Extrusion Line Controls
· Fully compatible with JWELL' s PLC/HMI system for integrated control of die, extruder, and thickness gauge.
Applicable PET Products
· Highly transparent food-grade PET sheet (APET)
· RPET sheet containing recycled materials
· Co-extruded functional film (such as anti-fog, anti-static, barrier film layer)
· Medical trays, blister sheets, etc.
"J" Shape 3 Roll Calendar
High-Precision Three-Roller Structure
· Equipped with polished upper, middle, and lower rollers, arranged in vertical, inclined, or horizontal configuration to meet diverse process requirements.
Stable Sheet Thickness Control
· Fine-tuned roller gap control (±0.01mm) and integrated thickness gauge ensure consistent thickness and excellent flatness.
Excellent Sheet Gloss and Surface Quality
· Rollers are chrome-plated and precisely ground for excellent clarity and gloss, free from flow marks, bubbles, or crystal spots.
Efficient Cooling System
· Internal spiral water or oil circulation system controls roller temperature within ±1°C for uniform cooling and stress-free sheet.
Advanced Tension Control & Synchronized Drive
· Independent servo motors drive each roller with precise tension control to avoid wrinkles and misalignment, improving yield.
Quick Lifting & Die Adjustment System
· Quick lift of center roller and flexible die-to-roller distance adjustment for faster startup and easier cleaning/changeover.
Modular Design, Compatible with Various Sheet Types
· Supports single-layer or multilayer co-extrusion; suitable for APET, PETG, RPET, and more.
Seamless Integration with Full Line Automation
· Integrated with extruder, die, and thickness gauge via PLC/HMI for smart operation and recipe management.
Automatic Thickness Gauge
High-Precision Measurement
· Uses infrared/laser or beta-ray online thickness gauge, with thickness tolerance controlled within ±0.003mm, ensuring consistent sheet thickness.
Real-Time Monitoring and Feedback Control
· Integrates with PLC system to collect real-time thickness data and send feedback to the extruder for closed-loop control of screw speed and die gap.
Improves Yield and Reduces Waste
· The automatic system reduces human error and minimizes defective products and edge trimming caused by thickness deviation.
Data Visualization and Historical Analysis
· Equipped with HMI or IPC to display thickness curves and export historical data for quality traceability and process optimization.
Compatible with Multi-Layer Sheet Structures
· Supports single-layer, double-layer, or multi-layer co-extruded PET sheets, automatically recognizing individual layer thicknesses.
Energy Saving and Efficiency Enhancement
· Precise thickness control reduces over-extrusion, saving raw materials and enhancing overall line efficiency.
Stable System with Easy Maintenance
· JWELL uses international brand sensors that ensure system stability and easy maintenance with accessible spare parts.
Double-sided silicone oil coating equipment
Non-Stop Continuous Winding
· Four winding stations rotate continuously, allowing non-stop reel changeover, greatly improving production efficiency.
Precise Tension Control
· Equipped with servo motors and closed-loop tension control to maintain consistent tension across varying reel diameters, ensuring flat, deformation-free sheet winding.
Independent Floor-Type Design, Flexible Installation
· Floor-type independent design allows flexible integration with various line widths and facilitates easier maintenance and plant layout.
Multiple Winding Modes Available
· Supports center winding, surface winding, or hybrid modes for various PET sheet thicknesses and applications.
User-Friendly Operation with High Automation
· Touchscreen interface with automatic length counting, reel changeover, cutting, and labeling, reducing labor intensity.
Neat Winding and Clean Edges
· Integrated edge position control (EPC) and pressure balancing system ensure neat, wrinkle-free winding with smooth edges.
Designed for High-Speed, High-Output PET Sheet Lines
· Supports winding speeds up to 80–120 m/min, perfectly matched to JWELL high-speed single or twin screw PET sheet extrusion lines.
· Winding diameter can be 1500mm
Jwell PET Sheet Extrusion Line: Technical Specifications & Comparative Analysis
Typical Model Specifications
| Item | Description |
| Model | JWS120/33 PET Single-Screw Unit or CJWH75-40 Parallel Twin-Screw Unit |
| Applicable Products | PET packaging sheet, GAG, APET, RPET sheet |
| Screw Diameter | Φ120 mm (also available Φ130, Φ150, etc.) |
| Screw Design | Single-screw or parallel twin-screw with devolatilization |
| Max Forming Width | Up to 2100 mm (typical 1220 mm) |
| Sheet Thickness | Adjustable 0.15–2.0 mm |
| Output Capacity | 300–1200 kg/h (depending on model) |
| Installed Power | Approx. 180–280 kW |
| Actual Energy Consumption | Approx. 0.25–0.35 kWh/kg |
Applicable Materials & Formulations
Applicable materials: Virgin PET, recycled PET flakes (RPET), blended materials (e.g., PET+PE, PET+GAG)
Typical formulation reference:
• Virgin PET or flakes: 100%
• Functional additives (release agent, brightener): 0.2% - 0.5%
• Optional: masterbatch, anti-blocking agent etc.
Energy Consumption Analysis
| Item | Jwell PET Line | Industry Average | Remarks |
| Energy Consumption per kg of product | 0.25–0.35 kWh/kg | 0.4–0.5 kWh/kg | Electrical use per kg of finished sheet |
| Energy-Saving Design | Inverter motors, IR heating, insulation system | Conventional electric heaters | Variable-frequency energy-saving design |
| Intelligent Control | PLC + HMI with remote monitoring | Local gauges or legacy PLC | Remote control & energy-data statistics |
Jwell Advantages vs Competitors
| Item | Jwell Advantage | Typical Competitors |
| Equipment Stability | Long-term operational stability, excellent roller synchronization | Frequent pulling fluctuations |
| Energy Efficiency | High-efficiency motors and low-energy design | Higher energy consumption |
| Material Compatibility | Supports 100 % flakes, GAG, PLA | Mostly limited to virgin materials |
| After-sales Service | Global service network with rapid response | Slow parts supply |
| Automation Level | Remote monitoring, energy statistics | Heavy reliance on manual operation |
| Turn-key Solution | Complete line equipment and solutions plus quick after-sales support | Main machine only |
Equipment Selection Advice
| Application Scenario | Recommended Setup (EN) |
| High-transparency food-grade sheet | Single screw + dehumidification and drying systems |
| 100 % recycled flakes | Twin-screw unit with devolatilization |
| Multilayer structure (e.g., GAG) | Multiple extruders for co-extrusion |
| High output demand | Large screw, IR heating, thickness control |
Why Choose JWELL' s PET Sheet Extrusion Line
· JWELL has over 25 years of experience in plastic extrusion machinery, with hundreds of PET sheet lines running worldwide.
· Offers solutions ranging from single-screw with drying system to dehumidification-free twin-screw systems, fitting various budgets and production capacities.
· Integrated with PLC control, auto thickness gauge, auto winding, silicone oil coating, and anti-static systems for smart and easy operation.
· Twin-screw models save up to 30% energy with no drying required, and the full line complies with CE/UL and environmental standards.
· Compatible with APET, PETG, RPET, and supports single or multilayer (A-B, A-B-A) co-extrusion.
· JWELL has service centers and subsidiaries in China, Southeast Asia, India, Turkey, and Latin America, providing fast technical support worldwide.
· Customizable for width, thickness, and functional modules like silicone coating, anti-static, film lamination, with many successful global references.
· Uses top-tier brands like Siemens, ABB, Schneider, NDC, and Scantech to ensure long-term reliability and stability.
Choosing JWELL means getting:
High Output + High Stability + Smart Automation + Low Energy Consumption + Global Service
www.jwellplas.com
Jwell
