Engineering Plastics Modification (Toughening, Reinforcing, Alloying PA, PC, PBT, ABS)
A compounding extruder, also known as a mixing extruder or twin screw compounding machine, is specialized equipment designed for plastic compounding, polymer modification, additive blending, and masterbatch production. Using high-efficiency co-rotating twin screws, the compounding extruder offers excellent mixing, dispersing, shearing, and homogenizing performance. It is widely used in manufacturing engineering plastics, color masterbatch, filler masterbatch, biodegradable materials, elastomers, and functional additives.
The compounding extruder combines precision temperature control, modular screw elements, multi-zone mixing, and various feeding systems to achieve optimal dispersion and stable pellet quality. It is ideal for applications requiring high consistency, precise formulation control, and continuous production, making it a preferred solution for materials R&D and large-scale compounding factories.
Applications of the Compounding Extruder
Polymer Compounding: PP, PE, ABS, PA, PC, PET, PBT, TPU, TPE.
Masterbatch Production: color, filler, carbon black, and additive masterbatch.
Engineering Plastics Modification: glass-filled, flame-retardant, impact-modified systems.
Biodegradable Materials: PLA, PBAT, PHA, starch-blended compounds.
Chemical & Additive Blending: stabilizers, compatibilizers, nano-fillers.
Recycling & Reprocessing: mixed plastics and production waste.
Technical Specifications
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Parameter
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Specification
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Extruder Type
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Co-rotating twin screw compounding extruder
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Screw Diameter
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135 mm
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L/D Ratio
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44:1 (customizable)
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Motor Power
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710 kW
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Output Capacity
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2000-5000 kg/h
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Feeding System
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Gravimetric / volumetric / side feeder / liquid injection
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Filtration System
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Manual or hydraulic screen changer
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Pelletizing Options
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Strand / water-ring / air-cooling / underwater
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Control System
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PLC + touchscreen + torque & pressure monitoring
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These specifications enable efficient plastic compounding with strong dispersion, stable melt pressure, and consistent pellet quality across a wide range of formulations.
Key Advantages
High mixing and dispersing efficiency due to modular twin-screw design.
Flexible screw configuration for different processing tasks—mixing, shearing, devolatilization, and reaction extrusion.
Energy-efficient system with accurate temperature zones and optimized torque output.
Wide material compatibility, from commodity plastics to advanced engineering polymers.
Stable continuous operation, suitable for 24/7 industrial production.
Excellent pellet uniformity, ideal for downstream molding and extrusion.
FAQ
Q1: What materials can the compounding extruder process?
PP, PE, ABS, PA, PC, PET, TPU, PLA, PBAT, pigments, fillers, and chemical additives.
Q2: Can the screw and feeding system be customized?
Yes. Screw elements, feeding ports, devolatilization zones, and pelletizing systems can be fully tailored.
Q3: What industries use compounding extruders?
Masterbatch factories, modification plants, plastic recyclers, chemical companies, and R&D labs.
After-Sales Service
We provide installation and setup, operator training, formulation consultation, spare parts supply, remote troubleshooting, and lifetime technical support to ensure your compounding extruder performs reliably and efficiently.
Product Tags:
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Engineering Plastics Compounding Extruder Machine Profile Extrusion Equipment Images
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