PC Light Tube Production Line

The SUHUI PC light tube production line is specially designed for extruding polycarbonate (PC) tubes, PC profiles, and transparent LED lamp diffuser covers, including single-color and dual-color LED lampshades. It is also fully compatible with PMMA (acrylic) materials, making it suitable for a wide range of high-transparency lighting and optical profile applications.

The system features a specialized screw designed specifically for PC materials, ensuring excellent plasticizing performance and eliminating common PC extrusion defects such as crystallization spots, draw marks, and vibration lines. Finished products achieve high light transmittance and superior optical clarity. The screw is manufactured from imported special alloy steel, preventing material adhesion, black spots, and degradation during continuous high-temperature operation.

A key advantage of this line is its newly developed online precision cutting system, which performs one-pass cutting during extrusion without secondary processing. Cutting accuracy is controlled within ±0.5 mm, delivering smooth, chip-free ends and significantly improving overall production efficiency.

Key Features of SUHUI PC Light Tube Production Line

• PC/PMMA Specialized Screw Design: Purpose-built screw geometry ensures thorough plasticizing of PC and PMMA materials, eliminating crystallization spots, draw marks, and optical defects.
• Online Precision Cutting System: Integrated cutting unit performs single-pass cuts during extrusion with ±0.5 mm accuracy — no secondary cutting required, clean chip-free ends.
• High Optical Clarity Output: Optimized extrusion process delivers tubes and profiles with excellent light transmittance and consistent transparency for LED lighting applications.
• Dual-Color Co-Extrusion Capability: Supports single-color and dual-color LED lampshade production with a co-extrusion die configuration.
• Premium Electrical Components: Siemens, Schneider, and ABB electrical components ensure reliable performance and globally available after-sales support.
• High-Torque Gearbox: Equipped with NSK/SKF precision bearings for stable, low-vibration operation under continuous production loads.
• Original Siemens/WEG Motor: Energy-efficient main drive motor with inverter control for stable screw speed and reduced power consumption.
• Stainless Steel SUS304 Construction: All material-contact surfaces use SUS304 stainless steel for hygiene, corrosion resistance, and long service life.
• Energy-Saving Pump Control: Variable-frequency pump control system reduces hydraulic energy consumption during cooling and calibration.

PC Light Tube Extrusion Process Workflow

1. Material Drying: PC or PMMA pellets are dried in a dehumidifying dryer to reduce moisture content below 0.02%, preventing hydrolytic degradation and optical defects during extrusion.
2. Feeding: Dried material is fed into the extruder hopper via a vacuum loader or gravimetric dosing unit for consistent, controlled material flow.
3. Plasticizing & Extrusion: The PC-specialized screw melts and homogenizes the material under precise multi-zone temperature control, then forces the melt through the tube or profile die head.
4. Calibration: The extruded tube or profile enters a precision vacuum calibration sleeve that fixes the outer diameter and wall thickness to the target dimensions.
5. Cooling: The calibrated profile passes through water cooling tanks for full solidification while maintaining dimensional stability and optical clarity.
6. Haul-Off: Servo-driven caterpillar pullers draw the tube through the line at a precise, adjustable speed to ensure consistent wall thickness and surface quality.
7. Online Precision Cutting: The integrated cutting unit automatically cuts tubes to the specified length (±0.5 mm accuracy) during extrusion, producing smooth, chip-free ends without secondary processing.
8. Collection & Packaging: Finished PC light tubes are inspected for optical clarity and dimensional compliance, then bundled or packed for shipment.