PLA biodegradable plastic twin screw extruder

Product Overview

This equipment is designed specifically for the processing of polylactic acid (PLA) and other biodegradable materials, and is a twin screw extruder aimed at the field of environmentally friendly materials. As the core equipment of the biodegradable plastic granulation production line, this plastic extruder achieves high output while maintaining the stability of molecular weight distribution, making it particularly suitable for industrial scale applications by manufacturers dedicated to the production of biodegradable plastics.

Core Features
·Specialized screw configuration for biobased materials: Design specialized screw components for the shear sensitive characteristics of PLA, achieving full melting and dispersion in a twin screw extruder while avoiding thermal degradation.
·High torque gearbox: adopting a high torque transmission system, specially designed for co rotating twin screw extruders, ensuring stable operation under different loads.
·Precise temperature control system: Multi zone heating and cooling combined with real-time monitoring of machine head temperature, accurately meeting the requirements of narrow processing windows for biodegradable plastic extrusion.
·Corrosion resistant components: The barrel is made of bimetallic material, and the screw is made of high wear-resistant powder metallurgy or high nickel based alloy, effectively resisting the corrosion of acidic by-products during the PLA modification process.
·Automated drying and feeding: integrating vacuum exhaust and lateral forced feeding to solve the problem of easily hygroscopic biodegradable plastics, stable production can be achieved without additional pre drying.

Technical parameters

Noted: Details depend on your requirements and need.

Equipment advantages

Why choose this plastic extruder for your biodegradable plastic project?

Unlike conventional equipment, our plastic granulation production line structure has been specifically optimized for the rheological properties of PLA and PBAT. The excellent volatilization ability of twin screw extruders is the key to ensuring the quality of biodegradable plastic particles. Nanjing Kelongwell Chemical Machinery Co., Ltd. has accumulated years of technology in the field of biodegradable plastic extrusion, which has enabled the equipment to outperform traditional single screw solutions in terms of ton energy consumption and particle uniformity.

Application Fields
·PLA modified granulation: producing injection grade, sheet grade PLA pure resin or modified plastic pellets.
·Biodegradable masterbatch: Production of colorants and functional masterbatch suitable for biodegradable plastic films.
·Starch based blend materials: Processing thermoplastic starch and PLA blends to reduce raw material costs.
·PLA waste recycling: Achieve efficient plastic granulation of industrial waste during the processing of PLA products, and regenerate it into high-quality raw materials.
·Medical grade resin: producing high-purity biodegradable plastics for disposable medical devices.

Customized services

Nanjing Kelongwell Chemical Machinery Co., Ltd. provides comprehensive OEM/ODM services and can customize plastic extrusion production lines according to your specific formula. We can provide customized solutions for the entire process from screw element combination, feeding system (liquid or solid) to downstream plastic granulation device (water-cooled pulling or underwater cutting), whether it is filling modification with high oil absorption value or gentle transportation of high viscosity biodegradable plastics.

Common Problems
Q1: Can this twin screw extruder process both pure PLA and high filling PLA simultaneously?
A1: Sure. Our co rotating twin screw extruder adopts a modular screw design. For pure biodegradable plastics, a mild melting configuration is adopted; For high filling masterbatch such as calcium carbonate and talc powder, excellent dispersion is achieved by enhancing the kneading block and lateral feeding, while avoiding thermal degradation of the PLA matrix.

Q2: How can plastic extruders solve the sensitivity of PLA to moisture?
A2: The plastic extruder is equipped with a multi-stage vacuum exhaust system. When processing biodegradable plastics such as PLA, the vacuum system can effectively remove residual moisture and small molecule volatiles from the material, minimize hydrolysis reactions, and ensure the mechanical properties of the final plastic particles.

Q3: What is the approximate energy consumption per ton for a PLA granulation production line?
A3: Energy consumption advantage is a prominent feature of twin screw extruders. Taking the KLWE-50 model for PLA plastic granulation as an example, the specific energy consumption is usually between 0.20 and 0.28 kWh/kg, which is significantly lower than the energy consumption level of traditional single screw extruders for processing similar biodegradable plastics.

Q4: Can Nanjing Kelongwell customize a production line for PBAT/PLA film materials?
A4: Absolutely possible. Nanjing Kelongwell Chemical Machinery Co., Ltd. specializes in customized plastic extrusion solutions. For membrane grade biodegradable plastic blends (PBAT/PLA), we will optimize the screw combination of the twin screw extruder to achieve nanoscale dispersion of incompatible phases, ensuring the foam stability of subsequent blown film processes.

Q5: What after-sales services does the plastic granulation production line provide?
A5: We provide comprehensive services such as installation guidance, on-site debugging, and operator training. The plastic extruder comes with a 12-month warranty and a global spare parts supply that responds 24/7 to ensure the continuous and efficient operation of your biodegradable plastic production line.