High-Torque Twin-Screw Extrusion Lines

Technical Description

High-Torque Twin-Screw Extrusion Lines for Plastics & Polymers Twin-screw extruders designed with high torque capacity provide the mechanical power needed to process highly viscous or filled polymer compounds. These extrusion lines consist of: Twin intermeshing screws inside a heated barrel. A high-torque drive system to push and mix polymers thoroughly. Often part of a complete extrusion line including feeders, pelletizers, and downstream equipment. Processing filled polymers (e.g., glass fiber reinforced, mineral-filled). Handling highly viscous or abrasive materials. Improving dispersion of additives, colorants, and fillers. Enabling reactive extrusion (chemical reactions inside the extruder). Running at lower screw speeds to reduce material degradation but maintaining throughput. Typical Components of the Extrusion Line: High-Torque Twin-Screw Extruder Co-rotating or counter-rotating screws. Modular screw design for custom mixing profiles. High power motors (up to several hundred kW) for torque delivery. Feeding System Gravimetric or volumetric feeders for polymer resin and additives. Cooling System Water or oil-cooled barrel zones to control temperature. Downstream Equipment Strand pelletizers or underwater pelletizers. Conveyors and dryers. Control System Precise control of temperature, screw speed, and torque. Real-time monitoring for quality consistency. Applications: Compounding of engineering plastics (e.g., PA, PC, ABS). Masterbatch production (color concentrates and additives). Recycling of mixed or contaminated plastics. Production of specialty compounds with fillers, reinforcements. Reactive extrusion processes (e.g., polymer grafting). Advantages of High-Torque Twin-Screw Extrusion Lines: Handles difficult or abrasive polymers without stalling. Excellent mixing and dispersion of fillers and additives. Consistent product quality due to stable process control. Flexibility to run a wide variety of polymer blends. Enhanced throughput with low screw speeds reduces shear damage.....