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Help CenterGalvanized Trench Cover Bar Grating Load Class C250 for Drainage
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As a trusted manufacturer based in Hengshui, Hebei, China, Hengshui Ruibin New Materials LLC proudly introduces our Galvanized Trench Cover Bar Grating Load Class C250, designed specifically for efficient drainage and reliable surface coverage. With over 101–200 experienced employees and a factory spanning 1,000–3,000 square meters, we have been delivering high-quality grating solutions since 2019. Our annual export value of US$2.5 Million – US$5 Million reflects the global trust in our products, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. This trench cover combines durability, safety, and corrosion resistance to meet the demands of modern infrastructure projects.
Key Product Features:
- Hot-Dip Galvanized Surface: Provides excellent corrosion protection, extending product lifespan in wet and harsh environments.
- Load Class C250: Designed to withstand loads up to 250 kN according to EN 1433, suitable for pedestrian areas, bicycle paths, car parks, and light traffic zones.
- Anti-Slip Design: The bar grating pattern ensures superior traction, reducing accident risks even in rainy or oily conditions.
- Customizable Dimensions: Available in various lengths, widths, and bar spacings to fit specific trench dimensions and drainage requirements.
- Easy Installation: Lightweight yet strong structure facilitates quick handling and placement, reducing labor costs and installation time.
- High Load-Bearing Capacity: Manufactured from quality steel with precision welding, ensuring uniform strength distribution across the cover.
| Parameter | Specification |
|---|---|
| Material | Q235 Steel / Hot-Dip Galvanized |
| Load Class | C250 (250 kN) per EN 1433 |
| Bar Thickness | 3 – 6 mm (customizable) |
| Bar Spacing | 30 / 40 / 50 mm (optional) |
| Standard Size | 1000 × 500 mm (others available) |
| Surface Treatment | Hot-dip galvanized (≥65μm) |
| Application | Drainage channels, sidewalks, parking lots |
| Compliance | EN 1433, optional customization |
Detailed Description & Benefits:
Our Galvanized Trench Cover Bar Grating is engineered to provide a safe, durable, and low-maintenance solution for surface water drainage. The hot-dip galvanizing process creates a robust zinc-iron alloy layer that protects against rust, even in coastal or chemical-exposed environments. Unlike painted covers, our galvanized finish does not peel or chip, ensuring long-term performance without frequent repainting.
The C250 load class means each cover can support up to 250 kilonewtons of static load – equivalent to a 25-ton vehicle distributing weight evenly. This makes it ideal for areas with occasional light vehicle traffic, such as service roads, car parks, and residential driveways. For heavy truck routes, we recommend higher load classes like D400 (available upon request).
We offer bar spacings of 30mm, 40mm, or 50mm to balance water flow and pedestrian safety. Tighter spacing (30mm) prevents high-heeled shoes or bike tires from getting caught, while wider spacing (50mm) maximizes debris passage in industrial settings. Each cover is fabricated from flat steel bars and cross rods, resistance-welded at every intersection for structural integrity.
Installation is straightforward: the cover sits securely within a metal or concrete trench frame, with options for bolt-down locking for added security. The lightweight design allows one person to lift and position a standard-sized cover. For customized dimensions, we can produce covers up to 2 meters in length with thickness adjustment to meet specific load requirements.
Trust & Reliability – Why Choose Hengshui Ruibin?
With nearly a decade of manufacturing experience, we have supplied drainage gratings to international clients across 12+ main markets. Our factory employs skilled workers who follow strict quality control procedures at every stage, from raw material inspection to final galvanizing. We ship from Port of Tianjin and Port of Qingdao, ensuring efficient logistics for global orders. Our annual export value of US$2.5M–5M demonstrates consistent demand and customer satisfaction. Whether you need a small batch for a local project or a container load for large-scale infrastructure, we provide competitive pricing, timely delivery, and responsive after-sales service.
Contact us today for a quote or technical consultation. Our team is ready to help you find the perfect grating solution for your drainage needs.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between C250 and other load classes like A15 or D400?
A: C250 covers are designed for pedestrian areas and light vehicle traffic (e.g., passenger cars). A15 is for pedestrian-only, while D400 can withstand heavy truck loads. Choose based on your expected traffic. -
Q: Are standard sizes always in stock?
A: We maintain stock of popular sizes (e.g., 1000×500mm) for quick delivery. Custom sizes require a production lead time of 7–15 days depending on quantity. -
Q: How does the galvanized surface hold up in coastal regions?
A: Hot-dip galvanizing provides excellent corrosion resistance, even in saltwater environments. The coating thickness meets ASTM standards (65μm minimum). For extreme conditions, additional epoxy coating is optional. -
Q: Can the trench cover be cut on site?
A: It is possible to cut with an angle grinder, but we recommend ordering custom dimensions to maintain the protective coating and structural integrity. -
Q: What is the typical lifespan of this product?
A: Under normal outdoor conditions, a hot-dip galvanized bar grating can last 20–30 years without significant corrosion. Regular cleaning can extend its life further. -
Q: Do you provide samples before bulk order?
A: Yes, we offer sample pieces for quality evaluation. Sample cost is deductable from large orders. -
Q: Is the cover suitable for use in food processing areas?
A: Yes, the smooth galvanized surface is easy to clean and compliant with hygiene standards. However, for direct food contact, please consult our team for additional certifications. -
Q: How is the product packed for export?
A: Each cover is bundled with steel strapping and wrapped in waterproof protection. For full container loads, we use palletized packaging to prevent damage during transit.
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