PET/PLA Co-Rotating Parallel Twin-Screw Sheet Production Equipment is a high-efficiency extrusion system specifically designed for processing polyester-based materials such as polyethylene terephthalate (PET) and polylactic acid (PLA). Its key feature lies in the co-rotating twin-screw configuration, which enables precise temperature control and superior mixing/plasticizing capabilities to produce high-performance sheets. These sheets are widely used in food packaging, electronic packaging, medical applications, and other industries.
1. Twin-Screw Extrusion System
Co-rotating Parallel Twin Screws:Modular screw design with adjustable length-to-diameter ratio (typically 40:1-48:1) for efficient melting, mixing, and degassing.Co-rotation reduces shear heat, making it suitable for heat-sensitive materials (e.g., PLA).
Multi-Zone Temperature Control:Barrel divided into multiple PID-controlled zones (±1°C accuracy), accommodating PET (processing temp: 250-290°C) and PLA (160-200°C).
High-Torque Design:Servo motor or variable frequency drive with torque density ≥12 Nm/cm³ ensures stable high-output production.
2. Melt Filtration & Metering
Automatic Screen Changer:Continuously filters melt impurities (50-150 μm filtration precision), eliminating downtime for screen replacement.
Gear Pump:Stabilizes melt pressure (fluctuation <1%) to ensure uniform sheet thickness.
3. Sheet Forming & Cooling
T-Die:Coat-hanger manifold design with adjustable die lip opening (0.2-5 mm), integrated with automatic thickness control (β-ray or infrared gauging).
Three-Roll Calender:Vertical or inclined configuration, with segmented roll temperature control (±0.5°C); optional glossy/matte surface finish.
Cooling System:Air knife + water cooling for rapid solidification, minimizing crystallization (critical for PET).
4. Haul-Off & Winding
Servo-Driven Haul-Off:Multi-roll synchronized tension control (±0.5% accuracy) prevents stretching deformation.
Center/Surface Winding:Equipped with automatic cutting and roll-changing, max. winding diameter up to 1.5 m.
| Model |
Extruder model |
Products thickness(mm) |
Main motor power(kw) |
Max extrusion Capacity(kg) |
| Multi layer |
JWE75/40+JWE52/40-1000 |
0.15-1.5 |
132/15 |
550-700 |
| Single layer |
JWE75/40-1000 |
0.15-1.5 |
160 |
500-600 |
| Single layer |
JWE85/44-1000 |
0.15-1.5 |
220 |
800-900 |
| Highly-efficient |
JWE95/44+JWE65/44-1500 |
0.15-1.5 |
250/75 |
1000-1200 |
| Highly-efficient |
JWE110+JWE65-1500 |
0.15-1.5 |
355/75 |
1100-1500 |
| High speed 1 |
JWE75/40-1000 |
0.08-1.0 |
160 |
70-80m/min |
| High speed 2 |
JWE95/40-1000 |
0.08-1.0 |
250 |
100-110m/min |
Pictures of Jwell PET/APET/PETG/PLA Co-rotation twin Screw Sheet Extrusion Machine
Pictures of Packing and Shipping
1.Food Packaging
Thermoformed Containers:PET sheets (0.2-1mm) for microwave-safe trays;PLA sheets for cold drink lids (compostable & biodegradable).
Blister Packaging:High-barrier PET sheets (aluminum-coated or SiO2-coated) for snack and fresh food trays;
2.Electronics & Industrial Packaging
Anti-Static Sheets:Carbon fiber-reinforced PET for IC trays, surface resistivity 1000000-1000000000Ω.
Cushioning Materials:Foamed PLA sheets as EPS replacements-30% lighter and biodegradable.
3.Medical & Disposable Products
Sterile Packaging:Transparent PET sheets (gamma-ray resistant) for medical instrument trays.
PLA Surgical Drapes:FDA-compliant, no dioxin emissions when incinerated.
4.Environmental Applications
Compostable Bags:PLA/PBAT blend sheets, compliant with EN13432, ≥90% degradation in 180 days.
Recycled PET (rPET):Equipment supports 100% recycled material for sustainable packaging (e.g., recycled bottle flakes).
PET/PLA environmental sheet extrusion line: JWELL develops the parallel twin screw extrusion line for PET/PLA sheet, this line equipped with degassing system, and no need drying and crystallizing unit. The extrusion line has the properties of low energy comsuption, simple production process and easy maintenance. The segmented screw structure can reduce the viscosity loss of PET/PLA resin, the symmetrical and thin-wall calender roller highten the cooling effect and improve the capactity and sheet quality. Multi components dosing feeder can control the percentage of virgin material, recycling material and master batch precisely, the sheet is widely used for thermoforming packaging industry.
Audited Supplier 
PET/PLA Co-Rotating Parallel Twin-Screw Sheet Production Equipment is a high-efficiency extrusion system specifically designed for processing polyester-based materials such as polyethylene terephthalate (PET) and polylactic acid (PLA). Its key feature lies in the co-rotating twin-screw configuration, which enables precise temperature control and superior mixing/plasticizing capabilities to produce high-performance sheets. These sheets are widely used in food packaging, electronic packaging, medical applications, and other industries.
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