This dedicated pultrusion production line forms continuous U-shaped FRP channel steel with uniform wall thickness and sharp corner radii, eliminating post-forming delamination. The system integrates a pre-shaping guide rack, three-zone infrared preheating, and a chrome-plated die with replaceable wear strips for U-profiles ranging from 25×25mm to 150×75mm. A reciprocating puller with adjustable grip force prevents surface marring on gel-coated channels, while the flying cutoff saw with dust extraction ensures clean ends for structural applications like cable trays, window frames, and platform edges.Designed specifically for U-shaped and C-channel FRP sections, this production line uses a contoured heating die and synchronized caterpillar pullers to maintain dimensional stability at speeds up to 0.8 m/min. The system handles vinylester and orthophthalic resins with continuous glass or carbon fiber roving, producing channel steel that replaces hot-dipped galvanized steel in acidic or marine environments. Real-time pulling force monitoring and automatic resin injection reduce void content below 2%, making it suitable for load-bearing industrial walkways and photovoltaic mounting rails.
Брошюра о продукте Hebei Fortis Technology Co., Ltd
Product Advantages
U‑Shape Specific Tooling Design
The heated die features replaceable wear strips and optimized corner flow channels, ensuring uniform resin distribution at the flange and web junctions – eliminating common thin‑wall defects in U‑profiles.
Marine‑Grade Corrosion Resistance (Output Material)
Finished U‑channel steel inherently resists salt spray, acidic vapors, and alkaline environments, offering 5× longer service life than galvanized steel in chemical plant cable trays or waterfront structures.
Low‑Friction Reciprocating Puller
Equipped with pneumatic grip pads that adapt to U‑profile geometry. The pulling force remains constant (±2%) without crushing the web or leaving track marks on visible surfaces.
Energy‑Smart Heating Zones
Three independently controlled infrared preheaters reduce energy waste by 18% compared to conventional die‑only heating, while maintaining surface temperature within ±3°C across the entire U‑section.
Integrated Flying Cut‑off with Dust Evacuation
The cutoff saw synchronizes with line speed via encoder feedback, producing burr‑free ends up to 200mm width. Built‑in dust collection prevents FRP particles from contaminating the workshop.
Quick Mold Change System
Change from 50×50mm to 120×80mm U‑channel in under 45 minutes using hydraulic clamping and pre‑centered guide rails – reduces downtime for custom profile orders.
Resin Savings via Precision Injection
Closed‑loop resin injection head with overflow recovery reduces material waste by 12–15% compared to open bath impregnation, specifically for high‑viscosity vinyl ester resins.
Straightness Guarantee
Post‑die calibration rollers and forced cooling section lock the profile’s shape, achieving straightness ≤1mm per 3m – critical for load‑bearing channel used in photovoltaic mounting rails and industrial grating supports.
Remote PLC Diagnostics
Siemens or Delta PLC stores 50+ parameter sets for different U‑channel sizes. Remote access allows our engineers to adjust pulling speed, heating curve, or cut length via VPN – minimizing on‑site technician costs.
Lower Logistics Cost
The line produces lightweight U‑channel steel (1.6 g/cm³) that ships in stackable bundles. One 40ft container holds up to 8 tons of finished profiles – 40% more than equivalent steel channels.
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Добавь.: №8-1, улица Чжэньсин, город Матун, уезд Цзаоцян, город Хэншуй, провинция Хэбэй
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