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Help CenterPultruded Fiberglass U-Channel 50x50x5mm Flame-Retardant LOI 30% for Cable Tray Support
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Hengshui Ruibin New Materials LLC is a specialized manufacturer of pultruded fiberglass profiles, and we are proud to present the Pultruded Fiberglass U-Channel 50x50x5mm with Flame-Retardant LOI 30%. This U-channel is engineered specifically for cable tray support systems where strength, lightweight construction, and fire safety are critical. Our factory, located in Hengshui, Hebei, China, combines advanced pultrusion technology with strict quality control to deliver a U-channel that meets the demanding needs of industrial, commercial, and infrastructure projects. With over 100 skilled employees and an annual export value in the range of US$2.5-5 million, we are a reliable partner for global buyers seeking durable and cost-effective composite solutions.
This U-channel profile is manufactured from high-quality fiberglass reinforced polymer (FRP) using a continuous pultrusion process, ensuring uniform fiber orientation and consistent cross-sectional dimensions. The result is a structural component that offers excellent load-bearing capacity, dimensional stability, and resistance to corrosion, moisture, and chemical attack. The 50x50x5mm profile is designed to fit standard cable tray systems, providing robust support for cables in electrical installations, data centers, and industrial plants.
Key Features and Benefits
- Flame-Retardant Performance: With a Limiting Oxygen Index (LOI) of 30%, this U-channel exhibits excellent resistance to flame propagation, making it suitable for applications where fire safety is a priority. It self-extinguishes when the ignition source is removed, helping to prevent the spread of fire along cable trays.
- High Strength-to-Weight Ratio: Fiberglass reinforced polymer offers superior tensile and flexural strength while being significantly lighter than steel. This reduces the overall weight of the support system, easing installation and lowering transportation costs.
- Corrosion Resistance: Unlike metal channels that rust or corrode in humid, salty, or chemically aggressive environments, FRP U-channels remain unaffected. They are ideal for offshore, coastal, wastewater treatment, and chemical processing applications.
- Electrical Non-Conductivity: The material is electrically insulating, reducing the risk of accidental electric shock and allowing safe use near live cables. It also minimizes electromagnetic interference in sensitive installations.
- Long Service Life: Pultruded fiberglass is resistant to UV degradation, moisture absorption, and biological attack, ensuring decades of reliable performance with minimal maintenance.
- Easy Fabrication: The U-channel can be cut, drilled, and assembled using standard tools. It does not require welding or heavy equipment, simplifying on-site installation and modifications.
- Customizable Length: We can produce the U-channel in custom lengths to match your project requirements, reducing waste and optimizing material usage.
Technical Specifications
| Property | Value |
|---|---|
| Profile Type | U-Channel |
| Nominal Dimensions | 50mm (width) x 50mm (height) x 5mm (wall thickness) |
| Material | Fiberglass Reinforced Polymer (FRP) |
| Resin System | Flame-retardant polyester or vinyl ester (optional) |
| Limiting Oxygen Index (LOI) | ≥ 30% |
| Flammability Rating | Self-extinguishing |
| Density | Approx. 1.7-1.9 g/cm³ (depending on formulation) |
| Tensile Strength | Typically 200-400 MPa (directional) |
| Flexural Strength | Typically 150-300 MPa |
| Color | Yellow (standard) or custom per RAL |
| Length | Standard 6m; custom lengths available |
Application Areas
The Pultruded Fiberglass U-Channel 50x50x5mm is versatile and can be used in a wide range of structural and support applications, including:
- Cable tray support rails and brackets in electrical installations
- Support beams for telecommunication and data cable runs
- Structural framing in corrosive environments (chemical plants, water treatment)
- Replacement for metal channels where non-conductivity is required
- Support elements in solar panel mounting systems
- Industrial walkway and platform framing (as cross members)
Why Choose Hengshui Ruibin?
We are a dedicated manufacturer with a factory area of 1,000-3,000 square meters and a team of 101-200 employees. Our annual export value reaches US$2.5-5 million, serving markets across North America, South America, Europe, Southeast Asia, Africa, and the Middle East. We ship from the Port of Tianjin and Port of Qingdao, ensuring efficient logistics to destinations worldwide. Each U-channel is produced under strict quality management, and we are committed to providing consistent product quality, competitive pricing, and responsive customer service. Whether you need standard lengths or custom dimensions, we can accommodate your specific requirements. Contact us today to request a quote or samples, and let us support your next project with reliable, fire-retardant fiberglass solutions.
Frequently Asked Questions
Q1: What does LOI 30% mean?
A: LOI (Limiting Oxygen Index) is a measure of a material's flammability. An LOI of 30% means the material requires an atmosphere containing at least 30% oxygen to sustain combustion. Normal air contains about 21% oxygen, so the material will not continue burning in normal air and is considered flame-retardant.
Q2: Can the U-channel be used outdoors?
A: Yes, the fiberglass material is UV-resistant and weather-resistant. For prolonged outdoor exposure, we recommend adding a UV-stabilized resin system, which is available as an option.
Q3: Is this U-channel electrically conductive?
A: No, FRP is an electrical insulator. This makes it safe for use in cable tray systems and near live circuits.
Q4: What lengths are available?
A: We offer standard 6-meter lengths. Custom lengths can be produced to your exact specifications, typically with a minimum order quantity.
Q5: Can I get samples before placing a bulk order?
A: Yes, we provide samples for quality evaluation. Please contact our sales team for sample availability and shipping arrangements.
Q6: Does the profile require special tools for cutting or drilling?
A: No, standard woodworking or metal cutting tools with carbide-tipped blades can be used. No special equipment is required.
Q7: What colors are available?
A: Standard color is yellow. We can also produce other colors based on your RAL number or Pantone code, subject to minimum order quantity.
Q8: How do you ensure the quality of the product?
A: We implement quality checks throughout the pultrusion process, including dimensional inspection and LOI testing on inlet materials. Our quality team ensures each batch meets the specified requirements.
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