Full-Line System Overview
The newly commissioned PVC profile extrusion line integrates a conical twin-screw extruder, precision vacuum calibration table, haul-off unit, automatic cutting system, and stacking device. The entire system is controlled by a PLC-based automation platform with HMI touch-screen interface, enabling real-time monitoring of extrusion parameters including barrel temperature, screw speed, and vacuum pressure.
The line is engineered to process rigid PVC (uPVC) compound into a wide range of profile cross-sections, including:
Window and door frame profiles
Wall cladding and decorative profiles
Cable trunking and electrical conduit profiles
Edge banding and sealing strip profiles
72-Hour Acceptance Test Results
During the continuous 72-hour acceptance trial, the production line demonstrated the following verified performance metrics:
Parameter Result
Stable output rate Up to 350 kg/h
Profile dimensional tolerance ±0.1 mm
Surface finish quality Smooth, no visible defects
Screw speed range 5–38 rpm with stable torque
Vacuum calibration accuracy -0.096 MPa maintained
Haul-off speed Up to 4 m/min
Cutting precision ±1 mm
All output profiles met dimensional and surface quality standards required for both domestic and export markets.
Key Technical Advantages
1. Energy-Efficient Extrusion Design
The conical twin-screw extruder features an optimized screw geometry with a compression ratio specifically tuned for rigid PVC processing. This design reduces specific energy consumption by 30–50% compared to conventional parallel twin-screw systems, delivering measurable cost savings during continuous production.
2. Precise Temperature Control
The barrel is equipped with four independent heating zones with PID temperature control, maintaining accuracy within ±2°C. This tight thermal management prevents PVC degradation while ensuring uniform melt quality—critical for high-gloss surface profiles.
3. Flexible Die and Calibration System
The modular die design allows rapid profile changeover in under 30 minutes. The vacuum calibration table supports profiles up to 240 mm in width, with adjustable stainless steel calibration sleeves to accommodate diverse cross-section geometries.
4. Full Automation and Smart Monitoring
The integrated PLC system provides recipe storage for up to 200 profile configurations, automatic alarm functions for temperature deviation and motor overload, and optional remote monitoring via industrial IoT connectivity for predictive maintenance.
Compliance and Certification
The complete PVC profile extrusion line conforms to CE machinery safety directives and ISO quality management standards. Electrical components comply with IEC standards, and all safety guarding meets EN ISO 12643 requirements for extrusion machinery.
Market Application
With global demand for energy-efficient building materials rising, PVC profiles continue to gain market share in construction, infrastructure, and industrial applications. This newly accepted production line positions its operator to meet growing demand for high-quality uPVC window systems, sustainable building profiles, and precision-engineered PVC components for both domestic consumption and international export.
About the Equipment
The PVC profile extrusion system is available in multiple configurations (SJSZ-51, SJSZ-65, SJSZ-80, SJSZ-92) to match production scale requirements, from small-batch specialty profiles to high-volume standard profile manufacturing. Custom line design and turnkey installation services are available for global clients.
-
