Extrusion Pelletizer

The Extrusion Pelletizer is a complete, integrated system that combines a high-performance single or twin-screw extruder with a precision pelletizing unit to continuously transform plastic powder, flakes, or melts into uniform, market-ready pellets. Unlike standalone cutters, an extrusion pelletizing line includes controlled feeding, melting, high-pressure filtration, vacuum degassing, die forming, cooling, and cutting — all synchronized through a central PLC. Whether you are compounding engineering plastics, recycling post-industrial scrap, producing color masterbatch, or pelletizing PET bottle flakes, our extrusion pelletizer delivers consistent pellet dimensions, excellent surface finish, and stable melt flow properties. With a wide choice of screw geometries, pelletizing methods, and line configurations, every system is tailored to your material and production goals.

• Complete Turnkey Integration: We deliver a fully matched line — feeder, extruder, screen changer, die head, cooling system, pelletizer, and control panel — tested and pre-wired before dispatch. You start production the day it’s installed.

• Precision Pellet Quality, Every Batch: Closed-loop synchronization between extruder output and cutter speed maintains pellet length within ±0.2mm. Advanced melt filtration down to 200 mesh removes contaminants, gels, and unmolten particles, ensuring near-virgin pellet clarity and processability.

• Multiple Pelletizing Technologies for Every Material:

  • Strand Pelletizing: Economical and easy to clean; ideal for frequent material changes, small-to-medium outputs, and a wide range of thermoplastics.

  • Water-Ring Pelletizing: Compact, automated, and perfect for high-volume PE, PP, and film recycling lines.

  • Underwater Pelletizing: Fully enclosed, high-throughput system for compounding, masterbatch, and sticky/low-viscosity materials like EVA and hot-melt adhesives.

• High-Torque Extrusion for Heavy-Duty Processing: Bimetallic screws and barrels with HRC60-65 hardness handle abrasive, glass-filled, or recycled materials. Optimized L/D ratios (28:1 to 48:1) provide the perfect balance of mixing, venting, and pressure build-up.

• Deep Vacuum Degassing Removes Moisture & Volatiles: A multi-zone venting system strips away residual moisture, printing inks, and low-molecular-weight gases from the melt, producing bubble-free, dense pellets with excellent mechanical properties.

• Energy-Saving Design: Precision-machined gearboxes, ceramic heater bands, and VFD-driven motors keep power consumption as low as 0.25–0.35 kWh/kg, significantly reducing your operating cost per ton.

• Central PLC with Recipe Management: A touchscreen interface stores up to 20 processing recipes, controls all temperature zones, screw speed, feeder rate, and cutter speed, and provides real-time fault diagnostics.

Proven Extrusion Pelletizing Performance Worldwide
Data from 200+ extrusion pelletizing lines installed in compounders, recyclers, and masterbatch producers (2022–2024):

• 30–50% Virgin Material Savings: Manufacturers who pelletize their own filled compounds or recycled blends in-house report cutting virgin polymer purchases by up to half, saving $80,000–$300,000 per year.

• Investment Payback in 8–14 Months: The combination of lower raw material costs, eliminated hauling fees, and the premium price of clean recycled pellets typically recovers the full line cost within the first year.

• Pellet Consistency Exceeds Market Standards: With automated synchronization and filtration, pellet length deviation stays within ±0.2mm and contamination below 0.1%, enabling easy sale into high-value injection molding and export markets.

• >340 Days of Uptime Annually: Scheduled screen changes and daily lubrication keep these lines running around the clock, even when processing abrasive, heavily filled, or contaminated post-consumer recyclate.

• Quick Material Changeovers: Strand pelletizer models can be purged and switched to a different color or polymer in under 30 minutes, providing flexibility for toll compounders and custom recyclers.

Applications: What Can Your Extrusion Pelletizer Process?
Our Extrusion Pelletizer is engineered to handle a broad spectrum of thermoplastics and processing tasks:

• Masterbatch & Color Concentrate: Disperse high pigment loads into a carrier resin and pelletize into uniform, dust-free granules.

• Compounding & Alloys: Blend polymers with fillers, reinforcements (glass fiber, carbon fiber), impact modifiers, and flame retardants to create custom engineering compounds.

• Thermoplastic Recycling: Pelletize post-industrial scrap (sprues, rejects, edge trim) or post-consumer washed flakes (PP/PE bottles, film) into high-quality recycled pellets.

• PET Bottle Flake Pelletizing: Convert washed PET flakes into IV-controlled, crystallized pellets for bottle-to-bottle or fiber applications.

• Adhesives & Thermoplastic Elastomers: Process sticky, low-viscosity, or temperature-sensitive materials with underwater pelletizing for perfectly spherical, non-agglomerating pellets.

• Bioplastics & Degradable Materials: Process PLA, PBAT, and starch blends with precise temperature control to prevent thermal degradation.

Customize Your Complete Extrusion Pelletizer Line
Send us your material type, desired pellet output, and any special requirements. We will engineer a complete system:

• Extruder: Single-screw (SJ series, 45–180mm) or twin-screw (TSE series, 35–135mm)

• Output: From 50 kg/h laboratory lines to 2000 kg/h industrial production

• Pelletizing Method: Strand, water-ring, or underwater

• Upstream/Downstream Equipment: Crushers, washers, dryers, classifiers, silos, bagging stations

• Control System: Siemens PLC with IoT remote monitoring option

• Export Packaging: Fumigation-free crates, VCI anti-rust, container-ready strapping
  Standard extrusion pelletizer lines ship in 25–35 working days. Large custom turnkey plants in 45–60 working days.

  
  

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