The GWELL PLA Biodegradable Sheet Extrusion Machine
It is a specialized production line designed for manufacturing polylactic acid (PLA) sheets, which are widely used in eco-friendly packaging, disposable tableware, and other biodegradable applications. Below is a detailed description based on the latest available specifications and features:

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### **Key Features & Technologies**
1. **Twin-Screw Extrusion Technology**
- The machine employs a **twin-screw extruder** (single-screw options also available) optimized for PLA processing. This design ensures efficient mixing, plasticization, and homogenization of PLA materials while minimizing thermal degradation.
- Special screw configurations and multi-stage vacuum exhaust systems effectively remove crystal water and reduce PLA viscosity, enhancing material stability during extrusion.

2. **Material Compatibility**
- Designed for **PLA and modified PLA**, including starch-based biodegradable materials. It can also process other polymers like PET or PP with proper cleaning.
- Supports **multi-layer co-extrusion** (up to 5 or 7 layers) for high-barrier sheets used in food packaging, pharmaceuticals, and electronics.

3. **Production Specifications**
- **Sheet Dimensions**: Width ranges from **600–1,500 mm** and thickness from **0.15–2.0 mm**, adjustable based on customer requirements.
- **Output Capacity**: Varies by model, typically **200–800 kg/h**, with high-speed models achieving up to **700 kg/h**.
- **Energy Efficiency**: Low-temperature extrusion and energy-saving designs reduce operational costs.

4. **Advanced Control Systems**
- **PLC Automation**: Integrated Siemens PLC ensures precise control over parameters like temperature, speed, and thickness. Real-time data feedback and alarm systems enhance operational reliability.
- **Independent Roller Drives**: Each roller operates with synchronized speed control to maintain sheet uniformity and prevent curling.

5. **Specialized Components**
- **Spiral Flow Channel Rollers**: High-strength rollers with internal spiral cooling channels ensure precise temperature control and efficient heat transfer.
- **Hydraulic Screen Changers & Melt Pumps**: These components maintain consistent material flow and eliminate impurities, improving sheet quality.

6. **Sustainability & Certifications**
- Complies with **CE standards** and supports the production of fully biodegradable sheets, aligning with global plastic reduction initiatives.

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### **Applications**
The machine produces PLA sheets for:
- **Food Packaging**: Thermoformed into lunch boxes, cups, and blister packs.
- **Medical & Pharmaceutical**: Biodegradable trays and containers.
- **Consumer Goods**: Electronics casing, agricultural films, and 3D stationery sheets.

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### **After-Sales Support**
GWELL provides **one-year warranties**, on-site installation, machine debugging, and technical training. Customizable configurations are available to meet specific production needs.

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### **Model Variants**
| Model | Width (mm) | Thickness (mm) | Output (kg/h) | Extruder Type |
|-----------------|------------|----------------|---------------|-----------------------------|
| GWS95-1000 | 600–850 | 0.15–1.5 | 250–300 | Twin-screw |
| GWS120/GWP85 | 800–1,500 | 0.15–2.0 | 450–550 | Twin-screw with vacuum |
| PLA-85 Twin | 600–1,200 | 0.15–1.5 | 350–600 | Twin-screw (PBS compatible) |

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For tailored solutions, GWELL offers consultations to optimize parameters such as material blends, layer structures, and production speeds. This machine exemplifies innovation in sustainable manufacturing, combining advanced engineering with eco-friendly material processing.
Contact information: E-mail / WhatsApp
Liam：saled@gwell.cn / +86 15906224102
Max：salem@gwell.cn / +86 15906227399
www.gwellmachine.com