Product Overview
Our Hinged Ductile Iron Manhole Covers are engineered for exceptional durability, safety, and easy maintenance. Manufactured from premium ductile iron and compliant with the international EN 124 standard, these heavy-duty covers feature a robust integrated hinge mechanism that effectively prevents theft and vandalism. They are the ideal choice for municipal roads, highways, and commercial projects.
Key Features
Anti-Theft Hinged Design: The permanently attached hinge prevents theft and opens smoothly ($120^\circ/180^\circ$) for easy maintenance access.
High Load Capacity: Made of premium GGG50 ductile iron, offering superior strength-to-weight ratio to meet C250 / D400 / E600 ratings.
Anti-Rattle & Silent: Precision-fit seating with optional rubber gaskets eliminates traffic rattle and noise.
Anti-Slip Surface: Features a raised textured pattern for maximum safety and traction in wet conditions.
Corrosion Protection: Finished with a durable black bitumen or epoxy coating for long-lasting weather resistance.
Technical Specifications & Available Sizes
| Parameter | Specification Details |
| Material | Ductile Iron GGG50 / ISO 1083 Grade 500-7 |
| Standard | BS EN 124-2:2015 |
| Load Class | Class C250 (25T) / D400 (40T) / E600 (60T) |
| Surface Finish | Black Bituminous Paint / Epoxy Coating |
| Locking System | Optional security lock / anti-tamper bolts |
Standard Size Options (Clear Opening)
We supply a comprehensive range of dimensions to fit your project requirements (Custom sizes available upon request):
Square Series: $400\times400\text{ mm}$ | $500\times500\text{ mm}$ | $600\times600\text{ mm}$ | $700\times700\text{ mm}$ | $800\times800\text{ mm}$ | $900\times900\text{ mm}$ | $1000\times1000\text{ mm}$
Round Series: $\Phi 600\text{ mm}$ | $\Phi 700\text{ mm}$ | $\Phi 800\text{ mm}$
Frame Depth: 50mm, 75mm, 100mm, 120mm
Applications
Highways, arterial roads, and city streets
Commercial parking lots and pedestrian zones
Municipal sewage, drainage, and telecom networks
Why Choose Us?
Factory Direct Pricing: Stable supply chain from our own foundry.
OEM/ODM Support: Custom company logos, dimensions, and load classes cast directly onto the surface.
Strict Quality Control: Every batch undergoes strict EN124 load and dimension testing before delivery.
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