Twin Screw Plastic Extruder

The JY-TE series modular twin-screw extrusion system integrates precise residence time distribution with high volumetric efficiency. Built to process formulations ranging from abrasive glass-fiber reinforced engineering plastics to shear-sensitive biodegradable resins, the platform accommodates flexible L/D ratios from 32:1 to 60:1.
Extrusion Principle: Co-rotating intermeshing twin-screw
Throughput Capacity: 200 kg/h to 1500 kg/h (model dependent)
Drive Configuration: Split-flow distribution gearbox paired with AC inverter or servo drive
Modular Assembly: Segmented barrel blocks and interchangeable screw elements mounted on high-strength spline shafts

High-Torque Transmission: Internal distribution gearboxes utilize 20CrMnMo alloy steel, carburized and precision-ground to DIN grade 6 standards, delivering a specific torque rating of T/A³ >= 11.2 for high-viscosity polymer processing.
Wear-Resistant Metallurgy: Screw elements are manufactured from CPM-10V or W6Mo5Cr4V2 powder metallurgy steel, vacuum hardened to HRC 58-62. Barrel liners feature bimetallic wear-resistant alloy or self-lubricating Ni-based alloy suitable for 60% mineral-filled formulations.
Precise Thermal Management: Cast-aluminum heaters combined with closed-loop soft-water cooling channels and proportional solenoid valves maintain barrel temperature control within +/- 1 deg C across independent heating zones.
Modular Process Flexibility: Segmented barrel units allow flexible positioning of side-feeders, liquid injection ports, and multi-stage vacuum degassing zones to adapt to changing polymer chemistry.

Electrical Control System: Siemens S7-1200/1500 PLC with a 15-inch industrial HMI touchscreen; multi-loop PID temperature regulation and hardware safety interlocks.
Drive Protection: Direct coupling via high-rigidity mechanical torque limiter to protect downstream components against unexpected material blockages.

Engineering Plastics Compounding: Glass-fiber reinforcement, mineral filling, and flame-retardant modification of PA6, PA66, PC, ABS, PBT, and PP.
Operational Baseline: JY-65B processing 30% glass-fiber reinforced PA6 yields a steady output of 650 kg/h with a specific energy consumption of 0.21 kWh/kg.
Masterbatch Production: High-concentration color masterbatch, carbon black masterbatch, and functional additive masterbatch requiring intensive distributive and dispersive mixing.
Biodegradable Resins: Reactive extrusion and compounding of PLA, PBAT, PHA, and starch-based thermoplastic matrices requiring strict melt temperature control.
Cable Compounds: Halogen-free flame-retardant (HFFR) polyolefin cable materials and cross-linkable polyethylene (XLPE) formulations.

Screw Geometry Customization: Tailored shearing blocks, kneading element angles (0 deg, 30 deg, 45 deg, 60 deg, 90 deg), and distributive mixing elements matched to required shear-rate thresholds.
Feeding & Venting Modules: Integration of volumetric or gravimetric twin-screw side feeders, liquid injection gear pumps, atmospheric venting ports, and multi-stage vacuum degassing pumps with liquid ring traps.
Downstream Pelletizing Integration: Complete pelletizing lines including strand water-bath cooling, air-cooling hot face cutting, underwater pelletizing, and water-ring pelletizing systems.

Machining Tolerances: Barrel bores are precision-honed and ground to a cylindricity tolerance within 0.015 mm. Screw element profiles are machined on 5-axis CNC grinding centers to maintain consistent intermeshing clearances.
Non-Destructive Testing (NDT): Critical drive shafts, gearbox housing castings, and pressure-bearing barrels undergo ultrasonic testing (UT) and magnetic particle inspection (MT) to screen for internal material defects.
Factory Acceptance Testing (FAT): Every assembled extruder undergoes a mandatory 4-hour dry-run test at maximum design speed to verify bearing temperature stability, vibration amplitude (< 2.5 mm/s), and electrical safety interlocks before dispatch (available via live virtual inspection for international clients).
International Standards & Certification: Built in strict accordance with ISO 9001 quality management protocols. All electrical panels and control architectures carry CE certification compliance, meeting EU industrial machinery safety directives.

Utility Planning: Detailed pre-installation engineering drawings are provided detailing incoming electrical load requirements, cooling water flow rates (m3/h), compressed air pressure, and exhaust ventilation specifications.
On-Site Support: Certified mechanical and electrical engineers are available for on-site equipment leveling, mechanical alignment, utility hookup supervision, and dry-cycle verification.
Operator Training: Structured training covering parameter recipe setting, screw disassembly safety procedures, routine maintenance intervals, and HMI alarm troubleshooting.

Spare Parts Inventory: Standard wear components-including screw elements, barrel liners, heater bands, and shaft seals-are maintained in stock for prompt international dispatch.
Remote Diagnostics & Local Network: Integrated secure industrial VPN modules inside control cabinets enable real-time remote PLC troubleshooting by our engineering team, backed by regional technical support channels for swift on-site intervention.
Warranty Terms: 12-month standard operational warranty covering mechanical drive components, gearbox assemblies, and electrical control hardware against manufacturing defects.

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