Used 35mm Zhangjiagang Twin Screw Pelletizing Extrusion Line with Underwater Pelletizer for Bioplastics & Compounding

Manufacturer: Zhangjiagang
Pelletizer Model: MA-36B
Year Built: 2022

Product Description

This used 35mm Zhangjiagang Twin Screw Pelletizing Extrusion Line is a high-performance compounding and pelletizing system engineered for processing a wide range of thermoplastics and bioplastics. Featuring a 1.378" screw diameter and a flexible 32:1 to 42:1 L/D ratio, the system delivers efficient mixing, melting, and extrusion for consistent pellet production.

Powered by a 70 HP motor, this extrusion line is paired with a MA-36B underwater strand pelletizer, capable of producing 25–50 kg/hour depending on material and formulation. The system is currently configured with a low-shear screw design, making it ideal for sensitive materials such as PLA, PBS, and PHA, while still capable of processing polyethylene (PE) and polypropylene (PP).

Its modular screw design allows for easy customization and retrofitting to meet different processing requirements, including higher shear mixing or specialty compounding. The system handles mineral-filled compounds such as calcium carbonate (CaCO3), clay, and talc with ease, making it suitable for both virgin and filled material production.

Specifications

• Manufacturer: Zhangjiagang
• System Type: Twin screw pelletizing extrusion line
• Condition: Used
• Year: 2022
• Screw Diameter: 35 mm (1.378")
• L/D Ratio: 32:1 – 42:1
• Motor Power: 70 HP
• Pelletizer Model: MA-36B underwater strand pelletizer
• Pelletizing Capacity: 25–50 kg/hour
• Screw Design: Low shear (modular and customizable)
• Material Capability: Bioplastics, thermoplastics, filled compounds

Applications

• Bioplastic compounding and pelletizing
• Polymer extrusion and pellet production
• Plastic recycling and reprocessing
• Masterbatch production
• Filled polymer compounding
• Research and development extrusion
• Specialty polymer formulation
• Additive blending processes
• Continuous pellet production lines
• Pilot-scale production operations

What Products Would This Be Used For

• PLA pellets
• PBS pellets
• PHA bioplastic pellets
• Polyethylene (PE) pellets
• Polypropylene (PP) pellets
• Mineral-filled plastic compounds
• Masterbatch pellets
• Recycled plastic pellets
• Additive-enhanced polymers
• Specialty engineered plastic compounds

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