85mm parallel twin-screw + 65mm single-screw ABA three-layer co-extrusion PET sheet extrusion line.
What is ABA Three-Layer Co-Extrusion in PET Sheet Production?
ABA three-layer co-extrusion is a modern sheet extrusion method that uses two extruders—typically a larger parallel twin-screw and a smaller single-screw—to form a three-layer PET sheet. In this structure, the outer A-layers are made from virgin PET, while the B-layer (core) can be composed of recycled PET, reducing costs without compromising surface quality.
Why Choose an 85 Twin-Screw + 65 Single-Screw PET ABA Sheet Line?
The 85mm parallel twin-screw extruder provides strong plasticizing capability and excellent melt homogeneity, making it ideal for both virgin and recycled PET. The 65mm single-screw extruder feeds the core layer efficiently. Combined, they deliver stable output and high-quality three-layer sheets.
Typical Output Capacity:
- Twin-screw extruder (85mm): 400–500 kg/h
- Single-screw extruder (65mm): 150–200 kg/h
- Total line output: Up to 600–800 kg/h, depending on material and formulation
Key Benefits of ABA PET Sheet Extrusion Line:
Cost Reduction: Core layer uses recycled PET, reducing raw material costs.
Stable Quality: Virgin outer layers ensure optical clarity and surface finish.
High Efficiency: Twin-screw extruder ensures uniform melt and energy-saving performance.
Versatility: Suitable for producing PET, APET, and RPET sheets for packaging, thermoforming, and printing.
Sustainability: Supports high recycled content without sacrificing product quality.
PET Extrusion Line Features:
Precision melt pumps and filtration systems
Intelligent temperature control and automatic thickness adjustment
High-performance three-roll calendar for smooth, flat sheet surfaces
| Model | Raw Materials | Screw Form | Screw Size | Sheet Thickness (mm) | Sheet Width (mm) | Max. Extrusion Volume (kg/h) |
| TZ-85S-65 Co-extrusion | Virgin or functional material, recycle PET flakes, filler | Blocking structure | Φ85+65 | 0.15-1.6mm | 1400mm | 600~800 |