D400 Heavy Duty Ductile Iron Manhole Cover - 850x850mm Square Frame

Heavy Duty EN 124-2 D400 Ductile Iron Manhole Cover (850x850mm)

This premium-grade municipal casting is designed for maximum performance in high-traffic environments. Featuring a heavy-duty 850x850mm square outer frame and a 600mm clear opening, this product offers the ultimate combination of structural stability and ease of utility access.

Crafted from high-strength ductile iron (GGG50), it provides superior tensile strength and impact resistance compared to traditional grey cast iron, significantly reducing the risk of cracking under continuous heavy loads.

Key Performance Advantages:

• Certified EN 124-2 Compliance: Fully compliant with European standards (marked with EN 124-2 and UNI on the cover), ensuring international quality acceptance.

• D400 Load Rating: Engineered to withstand up to 400 kN (40 tons) of wheel load, making it suitable for main carriageways, arterial highways, and industrial loading docks.

• Advanced Safety & Security: Designed with a raised anti-slip texture for pedestrian safety, an integrated hinge system to prevent theft, and a secure locking mechanism to eliminate rattling and lid displacement caused by fast-moving vehicles.

• Heavy-Duty 850Q Frame Structure: The broad 850x850mm outer frame features engineered anchoring triangular cutouts, which distribute the load evenly into the surrounding concrete pavement and ensure a secure, long-lasting installation.

Factory-Direct Advantages

We specialize in engineering-grade municipal castings and pipe fittings, delivering consistent manufacturing quality, technical standard compliance, and optimized logistics for rapid project delivery times. Contact our engineering team for detailed technical drawings and container-load pricing.