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Help CenterLight Duty Galvanized Steel Grating 1.5mm Flat Bar, 15x50mm Grid, for Drainage Trench Cover
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As a dedicated manufacturer based in Hengshui, Hebei, China, Hengshui Ruibin New Materials LLC proudly presents our Light Duty Galvanized Steel Grating featuring 1.5mm flat bars and a 15x50mm grid, specifically engineered for drainage trench covers. With over 5 years of industry experience, a team of 101-200 skilled professionals, and an annual export value ranging from US$2.5 to US$5 million, we have been consistently delivering reliable steel grating solutions to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our product combines cost-effectiveness with essential load-bearing performance, making it an ideal choice for pedestrian walkways, drainage channels, and light-duty industrial applications. We take pride in our rigorous quality control processes and our ability to customize dimensions and coating options to meet your project's specific requirements.
Product Overview & Core Benefits
- Lightweight yet robust — the 1.5mm flat bars provide sufficient strength for pedestrian and light vehicular loads while minimizing material weight and cost.
- Optimized 15x50mm grid spacing — the narrow 15mm bearing bar pitch and 50mm cross bar pitch effectively prevent small debris from falling through, while allowing efficient water drainage.
- Hot-dip galvanized surface — offers long-lasting corrosion resistance, ideal for outdoor or moisture-rich environments such as drainage trenches, gutter covers, and landscaping areas.
- Easy installation and maintenance — standard panel sizes can be cut or assembled quickly; open design reduces dirt accumulation and simplifies cleaning.
- Customizable dimensions and load ratings — available in various panel widths, lengths, and optional serrated surfaces for enhanced slip resistance upon request.
Technical Specifications
| Flat Bar Thickness | 1.5 mm |
| Flat Bar Height (Bearing Bar) | 15 mm (typical; customizable to 20, 25 mm etc.) |
| Bearing Bar Spacing (Center-to-Center) | 15 mm |
| Cross Bar Spacing (Center-to-Center) | 50 mm |
| Surface Treatment | Hot-dip galvanized (zinc coating ≥ 80 μm, per ASTM A123 standard available upon request) |
| Panel Size (Standard) | Width: up to 1.2 m; Length: up to 6 m (customizable) |
| Load Classification | Light Duty (suitable for pedestrian, bicycle, and light maintenance vehicle loads) |
| Application | Drainage trench covers, walkways, platforms, gutter gratings, landscape covers |
Detailed Advantages for Your Project
- Cost-effective solution: Using 1.5mm flat bars significantly reduces raw material consumption compared to traditional heavy-duty gratings, making it an economical choice for large-scale drainage projects without compromising safety.
- Superior drainage performance: The open area ratio (approximately 60-70%) ensures rapid water runoff, preventing ponding and reducing slip hazards around trenches and gutters.
- Long service life: Our hot-dip galvanizing process provides a thick, uniform zinc coating that protects the steel base from rust and corrosion, even in humid or chemically aggressive environments.
- Custom fabrication options: We can produce panels with specific lengths, widths, and cut-outs to fit existing trench structures. Serrated surfaces (with v-shaped notches on flat bars) are available for added slip resistance in wet conditions.
- Environmentally friendly: Galvanized steel is 100% recyclable, helping you meet sustainability goals. No painting or additional coating is needed, reducing VOC emissions during installation.
- Easy handling and installation: Lightweight panels can be lifted and positioned by a single worker. Standard anchoring options include welding, clips, or recessed frames — all compatible with our grating.
Trust & Reliability from a Verified Manufacturer
Since our establishment in 2019, Hengshui Ruibin New Materials LLC has grown into a reliable partner for international buyers. Our factory spans 1,000-3,000 square meters, equipped with advanced press-locking and welding lines. With an annual export value exceeding US$2.5 million, we ship our gratings from the Port of Tianjin and Port of Qingdao to customers in over 20 countries and regions. Our team of 101-200 employees includes experienced quality inspectors who ensure every panel meets your specified tolerances. We have successfully completed multiple orders for drainage covers in municipal infrastructure, residential estates, and commercial plazas. We invite you to contact us for customized solutions, competitive pricing, and prompt delivery. Let us be your trusted partner for galvanized steel grating.
Frequently Asked Questions (FAQ)
1. What is the load capacity of this light duty grating?
This grating is designed for pedestrian, bicycle, and occasional light maintenance vehicle loads (e.g., hand carts or small utility vehicles). The exact load capacity depends on the support span. For spans up to 600mm, it can typically support a concentrated load of 1.5-2 kN. For specific load requirements, please provide your span and load criteria for a custom calculation.
2. What does the 15x50mm grid mean?
The 15mm refers to the center-to-center spacing of the bearing bars (flat bars), and the 50mm refers to the center-to-center spacing of the cross bars (torsion bars). This results in a grid with many small openings, ideal for fine debris containment while maintaining good drainage.
3. Is the grating hot-dip galvanized after fabrication?
Yes, all our standard gratings undergo a hot-dip galvanizing process after welding/press-locking. The zinc coating provides excellent corrosion protection. Alternatively, pre-galvanized steel coils can be used for certain applications — please inquire for details.
4. Can I get different sizes or serrated flat bars?
Absolutely. We offer custom panel dimensions (width, length) and can provide serrated (toothed) flat bars for increased slip resistance. Cut-outs for drain inlets or pipe penetrations are also available. Please provide a drawing or specifications.
5. How is the grating packaged for export?
Gratings are bundled with steel strapping, separated by wooden spacers to prevent scratching, and packed in seaworthy wooden crates or pallets. We can also use protective kraft paper or shrink wrap upon request.
6. What payment terms and delivery time can I expect?
We typically accept T/T, L/C, or Western Union. For standard sizes, delivery is usually 15-25 working days after deposit. Custom orders may require 20-30 working days. Freight terms can be FOB, CIF, or CFR depending on destination.
7. Do you offer samples before bulk order?
Yes, we can provide small samples (e.g., 300x300mm piece) for evaluation. The sample cost and shipping are negotiable. Once confirmed with a bulk order, sample fees can be deducted.
8. What is the minimum order quantity (MOQ)?
For stock sizes, MOQ is 50 pieces. For custom dimensions, MOQ is 100 pieces or negotiate based on panel size. Small trial orders are always welcome to test our quality and service.
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