Polycarbonate (PC) boards and solid rods deliver outstanding optical clarity, superior impact resistance, and excellent dimensional stability. Ideal for architectural glazing, safety shields, optical components, and industrial transparent parts, PC extrusion demands precise temperature control and homogeneous melt quality. PIPPL conical twin screw barrels and dual-alloy barrels are engineered specifically for stable, low-shear processing of high-viscosity PC, preventing yellowing and molecular degradation while ensuring consistent board thickness and surface finish.
Product Overview
Polycarbonate (PC) boards and solid rods deliver outstanding optical clarity, superior impact resistance, and excellent dimensional stability. Ideal for architectural glazing, safety shields, optical components, and industrial transparent parts, PC extrusion demands precise temperature control and homogeneous melt quality. PIPPL conical twin screw barrels and dual-alloy barrels are engineered specifically for stable, low-shear processing of high-viscosity PC, preventing yellowing and molecular degradation while ensuring consistent board thickness and surface finish.
Key Features
• Low-shear progressive compression conical twin screw design minimizes thermal degradation and yellowing of polycarbonate.
• Centrifugal-cast dual-alloy barrel (nickel-based / tungsten-carbide) reaches HRC 58-65, offering 3–6 times longer service life than standard nitrided barrels.
• Self-balancing geometry keeps melt pressure fluctuation below 1%, guaranteeing uniform thickness and high yield (>95%).
• Mirror-polished flow surfaces and self-cleaning design enable fast grade or color changeovers with minimal waste.
• Fully compatible with major extruder brands including JWELL, KraussMaffei, Cincinnati, and Battenfeld.
Product Types
PC solid sheets, multi-wall / twin-wall boards, solid rods, and bars available in clear, tinted, UV-protected, and flame-retardant grades. Thickness and diameter ranges customized to customer requirements.
Technical Specifications – Recommended PIPPL Screw & Barrel
Model (d/D) | Output (kg/h) | Barrel Material | Hardness / Life |
45/90 | 50-80 | 38CrMoAlA + Dual Alloy | HRC58-65 / ≥24 months |
55/110 | 100-150 | 38CrMoAlA + Dual Alloy | HRC58-65 / ≥24 months |
65/132 | 180-250 | 38CrMoAlA + Dual Alloy | HRC58-65 / ≥24 months |
Applications
Architectural daylighting panels, machine safety guards, optical lenses, electrical enclosures, protective barriers, and industrial transparent components requiring high impact strength and clarity.
Customization Support
PIPPL provides fully customized conical twin screws and dual-alloy barrels matched to your specific PC grade, target output, and extruder model. Compression ratio, L/D, venting, and surface treatment can be optimized. Free formula consultation and sample testing available.


+86 15267878906

1306 W building , NB-IoT Industrial Park, No. 199 Changxing Road, Jiangbei, Ningbo.