Plastic Profile Extrusion Machine

The Jiuyi profile extrusion line processes rigid/flexible PVC, WPC, ABS, PC, PMMA, and PE into continuous industrial sections. A complete system integrates a single or twin-screw extruder, steel extrusion die, stainless steel vacuum calibration tank, belt haul-off unit, planetary/saw blade cutter, and stacking table. Throughput spans 50 kg/h to 500 kg/h depending on resin viscosity and die geometry.

Wear-Resistant Metallurgy:
Extruder barrels are machined from 38CrMoAlA alloy steel, subject to multi-stage vacuum nitriding and high-frequency quenching to achieve HV900 - 1050 surface hardness, withstanding abrasive high-filler formulations like CaCO3-heavy PVC.
Closed-Loop Melt Stability:
Dynisco transducers monitor die head pressure in real-time, synchronizing with inverter-driven screw RPM to prevent surge-induced thickness deviations. Solid-state relay heating zones maintain barrel temperatures within +/- 1 degrees C.
Synchronized Downstream Control:
Haul-off and cutting mechanisms operate via independent servo drives linked through an EtherCAT industrial bus, eliminating profile stretching or deformation up to 25 m/min.
High-Efficiency Transmission:
Parallel shaft helical gearboxes utilize 20CrMnTi carburized gears ground to ISO Class 6, delivering mechanical transmission efficiency above 95% coupled with IE3 motors.

Electrical Core: Siemens PLC, 10-inch HMI touch panel, Schneider low-voltage switchgear.
Calibration System: Dual vacuum chambers, bronze spray nozzles, high-flow vortex water ring pumps.

Construction: Rigid PVC window and door profiles, siding panels, wall corner guards, wire trunking.
Interior & Furniture: Edge banding strips, decorative skirting, WPC door frames, acoustic ceiling panels.
Lighting & Electronics: Polycarbonate (PC) and PMMA LED diffuser tubes, linear housings, cable ducts.
Automotive: EPDM/PVC co-extruded window seals, glass run channels, interior trim.

Tooling and line adaptations match customer CAD models or physical samples:
Die Flow Optimization: Computational Fluid Dynamics (CFD) simulation applied to internal channels to prevent polymer stagnation and thermal degradation.
Co-Extrusion Integration: Secondary extruders (SJ-30/SJ-45) added for dual-durometer applications (e.g., soft sealing lips on rigid profiles).
Resin-Specific Tooling: Custom barrier screws and mixing heads allocated for specific polymers (PVC vs. engineering thermoplastics).

Machining Precision: Screw threads and barrel bores finished via CNC thread-milling and deep-hole boring, maintaining concentricity within 0.02 mm.
Factory Acceptance Testing (FAT): Every line undergoes a continuous 8-hour dry run. Client-supplied resin trials are supported prior to crating to verify output stability and dimensional tolerance.

Pre-Installation: Foundation layouts supplied specifying anchor locations, chilled water requirements (0.2 MPa, 5 - 10 m3/h), and total power load.
Commissioning: On-site mechanical and electrical engineers supervise uncrating, leveling, wiring, synchronization, and operator training. Remote VPN diagnostics are available as an alternative.

Spares & Warranty: Critical wear parts (heater bands, thermocouples, pump seals, cutter blades) stocked for immediate dispatch. 12-month standard warranty on primary mechanical and electrical assemblies.
Response Protocol: Technical inquiries acknowledged by application engineers within 4 hours.

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