SMC Molded Heavy Duty Trench Channel | GRP Fiberglass Municipal Drainage Ditch

Specially engineered for municipal traffic projects, our SMC molded heavy-duty trench channels adopt one-piece compression molding technology with thickened fiberglass reinforcement ribs. Unlike ordinary FRP products, high-pressure SMC molding delivers uniform density and higher bearing capacity, compatible with A15 to D400 load grades for vehicle passage on urban roads, logistics yards and highway sidewalks. The integrated monolithic structure removes segmented weak joints, resisting impact, vibration and heavy wheel pressure without deformation or fracture.

GRP SMC composite raw materials bring unmatched low-maintenance advantages for municipal infrastructure. The material never corrodes under long-term contact with road salt, rainwater and urban sewage, requiring no regular anti-rust coating or repair. Thermal expansion coefficient is close to asphalt and concrete, preventing gaps between channel and pavement after long-term temperature changes. Standard 1m modular lengths simplify transportation and laying; mixed-size loading is supported for 20ft container shipments to cut logistics expenses for bulk municipal orders.

This heavy-duty SMC drainage ditch is the preferred solution for large-scale municipal bidding projects, highway reconstruction and logistics park construction. Custom internal width, depth and outlet knockout positions are available to match different drainage flow demands. We provide official factory test reports covering load bearing, salt spray aging and compressive strength, fully complying with European EN 1433 drainage standards to meet strict overseas engineering tender requirements.

Properties of FRP SMC Composite Drainage Channels

High Strength & Durability: Engineered to withstand heavy traffic without cracking or deformation.

100% Anti-Theft: Since composite material has no scrap value, it effectively eliminates the risk of theft.

Corrosion & Weather Resistance: Unlike cast iron, FRP will not rust and is resistant to acid, alkali, and UV rays.

Lightweight & Cost-Saving: 40% lighter than iron covers, significantly reducing transportation and installation costs.

Noise Reduction: Rubber gaskets and precision molding ensure no "clatter" when vehicles pass over.

Size Chart for FRP SMC Composite Drainage Channels

Applications for FRP SMC Composite Drainage Channels

SMC gutter are modern drainage systems formed through high-temperature and high-pressure one-piece molding technology, with high-strength glass fiber reinforced composite materials as the core. They break through the limitations of traditional concrete and metal materials, integrating corrosion resistance, high load-bearing capacity, lightweight, and maintenance-free features. 

FRP trench channels adopt compression moulding process.

FRP/GRP BMC/SMC Composite Linear Drainage Channel from our Trench Cover Series. High-strength compression moulded resin composite, load class A15–D400, corrosion-resistant, lightweight, easy installation. Ideal for municipal roads, airports, industrial parks, and agricultural projects. OEM service available.

Chart of Load Class

Certificate

Founded in 2006, WINWIN GROUP has obtained authoritative certifications including CE, ISO9001, ISO14001 and ISO45001. Meanwhile, WINWIN GROUP’s drainage channels and trench covers are manufactured in strict accordance with EN 1433 and EN 124 standards, ensuring superior product quality and compliance with global market requirements.

Professional manufacturer and exporter of complete stormwater and wastewater drainage system solutions. Our comprehensive product portfolio covers polymer concrete or resin concrete drainage channels, linear trench drains, HDPE or PP or plastic drainage channels, polymer concrete or resin concrete trench channels, FRP/GRP SMC composite drainage channels, slot drain, kerb drains, monolithic drainage channel, sumps, catch basins, as well as a full range of trench grates and access covers including ductile cast iron grates, stamped steel trench covers, slotted steel covers, manhole covers and recessed access covers.

Winwin drainage products are strictly manufactured and tested in compliance with CE EN 1433 and EN 124 standards, supporting full load classes from A15 (1.5 tons) up to F900 (90 tons). 

Winwin integrated drainage solutions are widely adopted for municipal roads, parking lots, logistics parks, commercial plazas, industrial zones, hospitals, landscape projects and other public infrastructure. They apply to building drainage, municipal water supply & drainage, road works and industrial floor drainage.Compliant with international quality standards, our products effectively prevent waterlogging and safeguard the structure of surrounding facilities.

With 20 years of manufacturing and exporting experience, we provide reliable quality, stable performance and competitive prices for global customers.

Welcome to contact us for long-term win-win cooperation.