High-Velocity Twin-Screw Extruder / Pelletizing Solution
Our high-velocity co-rotating twin-screw extruder delivers dependable performance for rigorous compounding, high-filler modification, and heat-sensitive polymer processing. Engineered with patented Heat Wave Stabilization™ and optional 2-stage compounding arrays for maximum output purity and melt uniformity.
Working Principle & Extrusion Mechanics
Engineered for intense dispersive and distributive mixing with continuous thermal equilibrium.
Patented Heat Wave Stabilization™ & Figure-8 Motion
All extruders from Rumtoo Machinery come standard with our patented Heat Wave Stabilization™, ensuring thermal energy is uniformly dispersed throughout the entire barrel length without localized scorching or cold pockets.
Co-rotating, closely intermeshing screw shafts blend the molten plastics into each other continuously along a figure-8 flow path. This creates an optimal environment for intensive plasticization, devolatilization, and high-filler dispersion. For specialized polymer shearing profiles, custom counter-rotating screw configurations are also available upon engineering review.
4-Stage Compounding & Pelletizing Flow
From multi-component feeding to dust-free pellet collection, every phase is engineered for continuous industrial throughput.
Accurate Dosing & Feeding
Volumetric or gravimetric side-feeders introduce polymers, masterbatches, calcium carbonate, or reinforcing fibers with precise ratio control directly into the melting zone.
Co-Rotating Plasticization
Intermeshing modular screw segments apply controlled shear and Heat Wave Stabilization™, achieving complete homogenization and vacuum devolatilization of moisture and volatiles.
Hydraulic Screen Filtration
Dual-piston hydraulic screen changers filter foreign contaminants and unmelted residues, enabling seamless screen replacements without stopping production lines.
Pelletizing & Classification
Water-ring die-face cutting or strand water-bath granulation produces uniform cylindrical or spherical pellets, followed by centrifugal drying and aerodynamic transport to storage silos.
Key Technical Advantages
Engineered for reliability, long service life, and demanding multi-polymer formulations.
2-Stage Array Flexibility
Can be coupled with a secondary single-screw extruder where twin screws handle compounding and single screws provide stable low-temperature die head pressurization.
Uniform Heat Distribution
Patented Heat Wave Stabilization™ distributes thermal energy across all barrel segments, safeguarding heat-sensitive compounds and flame retardants from degradation.
Gas-Nitrided Alloy Components
Drive shafts and barrel liners are forged from premium 38CrMoAlA alloy steel reinforced with gas nitriding, delivering exceptional wear and corrosion resistance against abrasive fillers.
Versatile Pelletizing Modes
Easily equipped with hot-face water-ring cutting, strand bath pelletizing, or underwater cutting to accommodate diverse polymer rheologies and pellet geometry specifications.
Technical Specifications
Standard configurations for our two-stage twin-screw compounding and single-screw extrusion pelletizing lines.
| Model | Screw Diameter | L/D Ratio | Driving Motor | Hourly Output |
|---|---|---|---|---|
| SHJ50 / SJ120 | ∅50.2 mm / ∅120 mm | 24/48, 7/20 | 37–45 kW / 30–37 kW | 150–300 kg/h |
| SHJ75 / SJ150 | ∅62.4 mm / ∅150 mm | 24/48, 7/20 | 55–75 kW / 37–45 kW | 150–300 kg/h |
| SHJ75 / SJ180 | ∅71.0 mm / ∅180 mm | 24/48, 7/20 | 90–110 kW / 45–55 kW | 300–600 kg/h |
| SHJ95 / SJ200 | ∅93.0 mm / ∅200 mm | 24/48, 7/20 | 132–135 kW / 55–75 kW | 500–1,000 kg/h |
Swipe horizontally to view the full table.
Equipment Gallery & System Details
Explore precision engineering across our twin-screw extrusion barrels, gearboxes, and pelletizing lines.
Frequently Asked Questions
Common inquiries regarding twin-screw compounding lines, screw geometries, and system specifications.
Inquire Now & Request Equipment Quotation
Share your target polymer matrix, filler ratios, and capacity requirements. Our extrusion engineers will configure an optimized twin-screw compounding layout for your plant.
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