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Ductile Iron Trench Grating D400 Load Class 500x500mm With Hinged Locking Mechanism
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Ductile iron D400 trench grating (500x500mm) with integrated hinged locking mechanism provides heavy-duty load capacity up to 40 tons, anti-theft security, and easy maintenance. Factory-direct from Hengshui Ruibin New Materials LLC with customizable finishes, global shipping, and flexible OEM options.
Negotiable
MOQ: 300 Square Meters (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Ductile Iron (GGG50/GJS500-7)
Size:
500x500mm
Load Class:
D400 (up to 40 tons)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Ductile Iron (GGG50/GJS500-7)
Size
500x500mm
Load Class
D400 (up to 40 tons)
Locking Mechanism
Hinged with manual lock
Surface Treatment
Epoxy paint / Hot dip galvanized (optional)
Application
Road drains, sidewalks, parking lots
Color
Black / Grey (customizable upon request)
Weight
Approximately 25-30 kg per piece (varies by design)
Standard Compliance
Complies with EN 124:2015 (D400)
Installation Type
Recessed or flush frame (optional)
Hengshui Ruibin New Materials LLC, a professional manufacturer with over 5 years of experience in metal products, introduces our premium Ductile Iron Trench Grating D400 Load Class 500x500mm with Hinged Locking Mechanism. This grating is engineered to meet the rigorous demands of urban drainage and heavy traffic areas, combining superior strength with intelligent locking design for maximum safety. As a factory-direct supplier with an annual export value of US$2.5 Million – US$5 Million, we ensure each grating delivers long-lasting performance and reliable security.
Our D400 grating is crafted from high-grade ductile iron (GGG50/GJS500-7), offering exceptional impact resistance and corrosion resistance compared to ordinary cast iron. The 500x500mm size fits standard trench openings, while the hinged locking mechanism prevents unauthorized removal and reduces theft risk. With a load capacity up to 40 tons (D400 class per EN 124:2015), it is ideal for roadways, industrial yards, and commercial zones where heavy vehicles pass regularly.
Key Features and Benefits:
- High Load Capacity – D400 rating supports static loads up to 400 kN (approx. 40 tons), suitable for roads and truck aisles.
- Hinged Locking System – Built-in hinge and locking bolt keep the grate securely in place; simple to open for maintenance.
- Durable Ductile Iron – Tensile strength ≥ 500 MPa, elongation ≥ 7%, withstands repeated heavy loads without cracking.
- Anti-Theft Design – Locking mechanism requires a special tool to open, deterring unauthorized removal.
- Easy Installation – Pre-drilled holes for fastening to concrete frame; also fits standard 500x500mm trench channels.
- Customizable Finish – Available in epoxy paint (black, grey) or hot-dip galvanized finish for enhanced weather resistance.
- Low Maintenance – Smooth surface reduces debris accumulation; self-cleaning slots optional.
Technical Specifications:
| Parameter | Value |
|---|---|
| Material | Ductile Iron (GGG50 / GJS500-7) |
| Overall Size | 500 x 500 mm (clear opening) |
| Load Class | D400 (40 tons) per EN 124:2015 |
| Locking Mechanism | Hinged bolt with tamper-resistant key |
| Weight (approx.) | 28 kg (±2 kg) |
| Surface Finish | Epoxy paint (standard) / Hot dip galvanized (optional) |
| Slip Resistance | Textured surface, R10 rating |
| Operating Temperature | -30°C to +80°C |
Why Choose Our Trench Grating?
- Factory Direct Pricing – Eliminate middlemen, get competitive prices without compromising quality.
- Rigorous Quality Control – Each grating undergoes load testing, dimensional inspection, and surface treatment checks.
- Global Shipping – We export to North America, South America, Europe, Africa, Oceania, and more from Port of Tianjin and Port of Qingdao.
- Custom Options – Need a different size or locking design? We support OEM/ODM orders with short lead times.
With over 100 employees and a 1,000–3,000 square meter factory, Hengshui Ruibin New Materials LLC has the capacity to fulfill bulk orders efficiently. Our experienced team ensures every product meets international standards without relying on third-party certifications we do not hold. We have served clients in more than 10 countries, and our annual export value reflects our commitment to reliability. Contact us today to request a quote or sample – experience the difference of a trusted manufacturer.
Frequently Asked Questions (FAQ):
-
What is the load class D400 and where is it used?
D400 means the grating can withstand a test load of 400 kN (≈40 tons). It is suitable for roadways, industrial areas, and parking lots where heavy vehicles travel. -
Is the locking mechanism easy to open for maintenance?
Yes, the hinged lock can be opened using a special T-key (included). It allows quick access for cleaning or pipe inspection without removing the grate. -
Can this grating be used in pedestrian areas?
Yes, but it is over-engineered for pedestrian use. We also offer lower load class options (e.g., A15, B125) for light traffic; please contact us for recommendations. -
What finishes are available and which is best for coastal environments?
Standard finish is epoxy paint. For coastal or highly corrosive areas, we recommend hot-dip galvanizing (optional, at extra cost). -
What is the typical lead time for an order?
For standard sizes (500x500mm) the lead time is 15–20 working days after deposit. Custom sizes may take 25–30 days. -
Do you provide installation instructions or fixing frames?
Yes, we can supply matching frames (cast iron or steel) upon request. Simple installation guide is provided with each shipment. -
How can I be sure about the product quality without certification logos?
We perform in-house load testing and dimensional checks. Sample orders are welcome for your evaluation. We also accept third-party inspection (e.g., SGS, Bureau Veritas) at buyer's cost. -
What is the minimum order quantity (MOQ)?
MOQ for stock sizes is 50 pieces. For custom designs, MOQ is 200 pieces.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2019
Factory Size
1,000-3,000 square meters
Annual Export Value
US$2.5 Million - US$5 Million
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