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Triple-Screw Extrusion Granulator

Product Introduction 
Triple-screw extrusion granulator consists of a split-type small precision triple-screw extruder, screen changer, granulation die, cooling water tank, air drying device, and small precision cutter. It integrates the whole process of extrusion, mixing and pelletizing. Adopting a parallel intermeshing co-rotating triple-screw structure, it features easy operation and stable performance. It is suitable for laboratory R&D and small-batch trial production, helping shorten the R&D cycle, reduce testing costs, and provide reliable support for industrial upgrading.
DESCRIPTION
Key Features
● High-efficiency Mixing with Triple-Screw Structure 
Three screws are intermeshed in a linear arrangement and rotate in the same direction at high speed, subjecting materials to intense shearing, extrusion, kneading and grinding. Compared with traditional twin-screw extruders, it has an additional high-shear zone, doubling the plasticization and mixing performance. Excellent mixing effect can be achieved with a relatively small length-to-diameter ratio. 
 
● High-precision Control System 
Precise temperature control: Operating temperature up to 350℃, with temperature control accuracy of ±1℃, ensuring uniform plasticization. 
Stable pressure: Optional melt pump system available, with pressure measurement accuracy of 0.5% FS.
 Accurate driving: Servo motor drive for precise speed control and stable, consistent plasticization. 
 
● Wide Material Adaptability 
Suitable for various polymer materials, including PE, PP, PS, ABS, PET, PA, PC, TPE, TPR, TPV, EVA, PVC, biodegradable materials, wire and cable compounds, color masterbatches, etc. 
 
● Flexible Modular Design 
Modular screw structure, with screw elements combinable according to process requirements. 
Optional split-type barrel for faster and easier cleaning. 
Optional side feeder and liquid feeding port to meet diverse process demands.
 
● Intelligent Operation & Control 
Equipped with a Siemens PLC touch-screen control system, which displays real-time key data such as melt pressure, temperature and screw speed, enabling convenient and intelligent operation with intuitive data acquisition.
 
Application Industries & Fields
Industries: Polymer materials, plastics, new energy (lithium batteries, photovoltaics), packaging, electronics, medical and health care, automotive, aerospace, scientific research and education, etc. It meets the requirements for filling, blending, modification and pelletizing of various plastics and engineering resins. 
Applications 
● Reactive extrusion 
● Extrusion foaming 
● Polymer alloys 
● Polymer reinforcement 
● Dewatering, devolatilization and venting
 
Main Technical Parameters
 
Model MGTL-22/40
Applicable material General-purpose plastics, engineering resins, etc.
Screw diameter 21.7mm
L/D 40
Screw speed 0-600rpm
Pressure measurement range 0-50MPa
Pressure measurement accuracy 0.5%FS
Operating temperature Rt-350℃
Temperature accuracy ±1℃
Number of pull strips 4 pieces
Pellet length 3±0.2mm
Pelletizing diameter 1-4mm
Cutter speed 0-800rpm
Working voltage 3φ380VAC±10%,1φ220VAC±10%,50Hz
Rated power About 25kW
L×W×H 4800mm×950mm×1800mm
Weight About 1300kg

 

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