Equipment

PLA Biodegradable Sheet Extrusion Line

Designed for heat-sensitive PLA materials, this line optimizes drying, plasticizing and temperature control to produce clear, matte or modified PLA sheet for compostable packaging and thermoforming.

Product Advantages

  • A dedicated screw design and extrusion process optimized for PLA ensure uniform plasticizing while reducing yellowing, excessive degradation and production interruptions.
  • Precise temperature control and forced dehumidifying drying effectively control material moisture and reduce bubbles, crystal defects and surface-quality issues.
  • Optimized three-roll calendering, cooling and forming provide excellent sheet transparency, flatness and thermoforming performance.
  • The complete line is designed for stable continuous production, while optimized temperature control, drive systems and processing conditions help reduce unnecessary energy consumption.
  • Multi-layer co-extrusion with other functional materials can be evaluated according to project requirements. Material compatibility and environmental properties must be technically verified.
  • The process can be configured according to target-market environmental regulations. Final biodegradability and compostability depend on the materials, formulation, product testing and certification.
Submit Project Requirements

Applications

  • Biodegradable Meal Containers
  • File Folders
  • Gift Packaging Sheets
  • Toy Blister Covers
  • Disposable Eco-Friendly Products
  • Packaging Inserts

Product Details

  • The PLA biodegradable sheet extrusion line mainly consists of a dehumidifying drying and feeding system, a high-torque twin-screw extruder, a hydraulic screen changer, a coat-hanger T-die, a precision three-roll calendering and cooling unit, haul-off and edge-trimming equipment, a coating and drying unit, a winding system, and a PLC control system.
  • The screw geometry, die flow channels, processing temperatures, and cooling and forming system are optimized for the heat-sensitive, moisture-absorbing and hydrolysis-prone characteristics of PLA. Stable control of material moisture, residence time and melt temperature helps reduce yellowing, bubbles and excessive degradation.
  • The three-roll calendering and cooling unit improves surface quality, thickness uniformity and flatness while reducing roll sticking, deformation and irregular edges. The line can process virgin PLA, modified PLA and qualified biodegradable compounds.
  • Sheet width, thickness, output capacity, surface finish and downstream configuration can be customized according to the target product and thermoforming requirements.

Specifications

Product Type
PLA Biodegradable Sheet Extrusion Line
Main Extruder
High-Torque Twin-Screw Extruder
Applicable Materials
Virgin PLA, Modified PLA and Biodegradable Compounds
Drying System
Forced Dehumidifying Drying and Feeding System
Finished Sheet Width
50–1500 mm, Customizable
Sheet Thickness
0.2–2.0 mm
Output Capacity
200–1200 kg/h
Control System
PLC and Touchscreen Control
Die Type
Coat-Hanger T-Die
Calender Configuration
Precision Three-Roll Calendering and Cooling Unit
Downstream Equipment
Haul-Off, Edge Trimming, Coating and Drying, and Winding System

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