High-Performance Parallel Co-Rotating Twin-Screw Extruder Compounding & Pelletizing Line

1. Executive Summary

The ACC Series represents the pinnacle of precision and efficiency in laboratory and pilot-scale compounding. Designed for demanding research and development, formulation optimization, and small-scale production, this system delivers unparalleled control over the processing of polymers, masterbatches, filled composites, and wood-plastic composites. Its modular design ensures exceptional flexibility, allowing it to adapt to a wide range of material science challenges.

2. Key Features & Benefits

• Precise Co-Rotating Twin-Screw Design: Ensures superior self-wiping, efficient melting, excellent dispersion, and distributive mixing.

• Modular Barrel & Screw Configuration: Barrels are clamshell-style for easy access; screws are built from individual elements. This allows for infinite customization of the processing section (feed, melt, mix, vent, pump) to suit specific recipes.

• Robust DC/AC Drive System: Provides high torque and wide speed range for processing even the most challenging materials with consistent output.

• Integrated Gravimetric Feeding System: Guarantees precise and consistent ratio control of polymers, fillers, and additives for repeatable results.

• Versatile Pelletizing Options: Compatible with strand pelletizing, water ring pelletizing, or underwater pelletizing systems to produce uniform, high-quality pellets.

• Advanced PLC Control & Data Acquisition: User-friendly touchscreen HMI allows for recipe management, real-time monitoring of all parameters (temperature, pressure, torque, speed), and data logging for full traceability and analysis.

3. Technical Specifications

4. Detailed System Components

4.1. Twin-Screw Extruder Mainframe

• Frame: Rigid, steel construction with sound-dampening covers.

• Drive System: High-precision gearbox designed for maximum torque and longevity.

• Barrel Sections: Hardened alloy steel liners for superior wear and corrosion resistance. Each zone is independently heated and cooled.

• Screw Elements: Manufactured from high-grade nitriding steel or wear-resistant coatings (e.g., Tungsten Carbide) for extended service life.

4.2. Feeding System

• Main Hopper: With agitation or vibrating device to prevent bridging.

• Gravimetric Feeder: Highly accurate loss-in-weight feeder for the base polymer.

• Side Feeder(s): For adding fibers, fillers, or liquid additives (via precision metering pumps) downstream.

4.3. Pelletizing Unit (Options)

• Strand Die & Water Bath: A multi-strand die head extrudes material into a temperature-controlled water bath for cooling.

• Strand Pelletizer: Cuts the cooled strands into uniform cylindrical pellets.

• Water Ring Pelletizer: The die face is cut, and pellets are instantly carried away by a circulating water ring, ideal for adhesives and tacky materials.

• Underwater Pelletizer: The die face is submerged in water, and blades cut the pellets directly underwater, producing highly spherical and uniform pellets.

4.4. Control & Electrical System

• Programmable Logic Controller (PLC): The central brain for automated operation.

• Human-Machine Interface (HMI): Large color touchscreen for intuitive control and visualization of the entire process.

• Data Acquisition: Logs all critical process parameters (temperature, pressure, main motor amperage/torque, screw RPM, feed rates) for SPC analysis and reporting.

5. Applications

The PTS Series is ideally suited for:

• Polymer Compounding: Masterbatch, color concentrates, alloying, blending.

• Advanced Materials: Conductive composites, nanocomposites, biopolymers, thermoplastic elastomers (TPE/TPV).

• Filled Systems: High-loading of minerals (CaCO₃, Talc), glass fibers, carbon fibers, flame retardants.

• Reactive Extrusion: Polymerization, grafting, chain extension, and functionalization.

• Food & Pharmaceuticals: Encapsulation, hot-melt extrusion (HME) for API formulation.

• R&D and Process Scaling: Formulation development, parameter optimization, and scale-up studies for production plants.

6. Why Choose Our ACC Series?

• Unmatched Flexibility: The modular design allows one machine to perform the work of many.

• Data-Driven Results: Generate reliable, repeatable, and documentable data for your R&D projects.

• Robust & Reliable: Engineered with high-quality components for minimal downtime and long service life.

• Expert Support: Our global team of application engineers provides comprehensive support from installation to process optimization.

Contact Us Today to schedule a demonstration and discuss how the ACC Series can accelerate your material innovation.