High-Performance Two-Stage Screw Pelletizing Line

Product Overview

The Two-Stage Screw Pelletizing System is a sophisticated solution engineered for the recycling of plastic materials with high moisture, high ink content, or heavy contamination. By separating the melting and degassing phases from the final filtration and pelletizing stages, this “mother-daughter” configuration ensures superior granule quality and stable production.

Core Technical Advantages

• Dual-Stage Processing: The first stage focuses on melting and intensive degassing, while the second stage ensures fine filtration and stable pressure for consistent pellet formation.
• Enhanced Degassing Efficiency: Features multiple vacuum degassing zones across both units to effectively remove volatiles, moisture, and odors from recycled plastics.
• Superior Filtration Purity: Equipped with independent hydraulic screen changers on both stages, providing dual-layer protection against impurities for the highest grade of recycled resin.
• Optimized Thermal Control: Precise multi-zone temperature management prevents material degradation and maintains the physical properties of the polymer.
• Synchronized Control System: Integrated PLC automation ensures seamless speed and torque coordination between the primary and secondary extruders.

Typical Applications

• Heavily Printed Films: Ideal for post-consumer PE/PP films with high ink density.
• High-Moisture Feedstock: Efficiently processes materials such as washed agricultural films or wet flakes.
• Sensitive Polymer Blends: Suitable for materials requiring low-shear, stable-temperature processing during final extrusion.

Technical Specifications (Reference)