Plastic Pipe Extrusion Machine

An industrial extrusion system engineered to process thermoplastic resins-including HDPE, PVC, PP, and PPR-into continuous pipes ranging from 16 mm to 1200 mm in diameter. The system integrates a single-screw or conical twin-screw extruder, precision spiral or basket die heads, stainless steel vacuum calibration tanks, multi-caterpillar haul-off units, and planetary or blade cutters for 24/7 continuous industrial production.

Melt Homogeneity: Barrier-type screw designs combined with precise PID temperature control limit melt temperature variance to plus/minus 1 degree C, preventing thermal degradation across thick-walled profiles.
Drive Reliability: Helical gearboxes featuring internal forced lubrication and high-strength alloy steel gears transfer torque efficiently from AC inverter motors to the extrusion screw under continuous high loads.
Dimensional Precision: Dual-chamber vacuum calibration tanks with independent water ring vacuum pumps and proportional spray cooling maintain outer diameter tolerances within plus/minus 0.15 mm at line speeds up to 25 m/min.
Energy Efficiency: Optimized barrel insulation jackets and direct-drive motor configurations reduce specific energy consumption to 0.32 - 0.38 kWh/kg of processed resin, cutting power draw by 12 percent to 18 percent.
Wear-Resistant Metallurgy: Contact components machined from 38CrMoAlA alloy steel undergo gas nitriding treatments reaching surface hardnesses of HV 850–1000, extending operational lifespan under abrasive mineral-filled polymer processing.

Electrical Supply: 380V / 480V, 50Hz / 60Hz, 3-phase.
Control Interface: Siemens S7-1200 PLC and 15-inch color touch-screen HMI.
Drive & Inverter: ABB or Schneider frequency converters coupled with AC motors.

Municipal Infrastructure: High-pressure water supply mains and subterranean sewage drainage networks utilizing HDPE solid-wall pipes up to 1200 mm.
Building Services: Hot and cold potable water plumbing and radiant floor heating circuits utilizing PPR multi-layer composite pipes.
Telecommunications: Underground fiber-optic cable protection and sub-duct routing utilizing high-density polyethylene microducts.
Agriculture: Low-pressure irrigation mainlines and lateral drip-irrigation tubing manufactured from LDPE and LLDPE resins.

Co-Extrusion Upgrades: Addition of secondary and tertiary satellite extruders (SJ-30 to SJ-50 series) to produce multi-layer co-extruded pipes featuring colored identification stripes or recycled core layers.
Die Head Geometry: Custom spiral mandrel configurations engineered for high-viscosity cross-linked polyethylene (PEX) or high-molecular-weight HDPE resins.
Downstream Integration: Tailored cooling tank lengths, customized caterpillar haul-off track lengths, and specialized dust-free planetary cutting units matched to factory floor layouts.
Automation Packages: Integration of gravimetric feeding systems, automatic wall-thickness measurement gauges (ultrasonic pulse-echo technology), and automated coilers or stacking cradles.

Machining Precision: Extruder barrels and screws are precision-machined on CNC horizontal boring and thread-grinding centers to maintain radial clearances within 0.03 mm to 0.05 mm.
Weld Integrity: Structural steel bases and vacuum tank bodies undergo full-seam CO2 gas metal arc welding followed by structural stress-relieving annealing processes to prevent thermal warping.
Factory Acceptance Testing (FAT): Every line undergoes a mandatory 4-hour dry run and live polymer test extrusion using client-specified resin. Output verification, melt pressure stability logs, and dimensional laser scans are recorded and delivered in the inspection report.
Compliance Standards: CE certified electrical panels complying with IEC 60204-1 safety standards. ISO 9001:2015 quality management system enforced across all manufacturing cells.

Infrastructure Requirements: Foundation floor flatners within plus/minus 2 mm over total line length. Dedicated chilled water supply capacity (0.3 MPa to 0.4 MPa pressure) and compressed air supply (0.6 MPa).
Deployment Support: On-site mechanical positioning, electrical wiring supervision, and system commissioning managed by senior service engineers.
Operator Training: Standardized 5-day on-site operational and maintenance training covering screw disassembly, die head cleaning protocols, PLC recipe programming, and troubleshooting sequences.

Remote Diagnostics: Ethernet-enabled PLC gateways allow secure remote access for technical teams to analyze operational parameters and adjust control loops within 2 hours of notification.
Spare Parts Logistics: Standard wear components-including heater bands, thermocouple probes, contactors, and sealing rings-are stocked in central warehouses and dispatched via express air freight (DHL/FedEx) to minimize downtime.
Warranty Terms: 12-month operational warranty covering mechanical drive assemblies, electrical panels, and extrusion barrels against material and manufacturing defects.

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