Heavy Duty EN124 D400 Ductile Iron Square Gully Grating and Frame 600x600mm

Core Features & Structural Advantages

• Heavy-Duty D400 Loading Capacity: Certified to safely withstand up to 40 tonnes of wheel load, ensuring zero structural deformation when installed on arterial roads, highways, and heavy-freight logistics parks.

• Superior Material Grade: Utilizes advanced ductile iron technology, which offers outstanding tensile strength, ductility, and fracture toughness compared to traditional grey cast iron, significantly reducing the risk of brittleness or cracking.

• Optimized Diagonal Drainage Slots: The innovative diagonal bar arrangement maximizes water intake velocity while effectively self-cleaning debris, preventing urban flooding and hydroplaning on high-speed roads.

• Advanced Anti-Slip Pattern: Designed with raised geometric surface textures across both the grate and the frame corners to provide superior multi-directional grip for vehicle tires and pedestrian footwear.

• Sturdy Frame Anchor Points: The frame is engineered with rigid, extended flange corners with pre-drilled bolt holes to ensure a seamless, non-shifting anchorage within the concrete foundation, minimizing long-term asphalt erosion.

 Premium Infrastructure Applications

This D400 600x600mm square grating is highly recommended by civil engineers for critical drainage systems, including:

• Carriageways & Roadways: Ideal for the hard shoulders of highways and traffic lanes of main municipal roads.

• Logistics Hubs: Docks, freight terminals, and warehouses where heavy forklifts and container trucks operate continuously.

• Commercial & Public Spaces: Large-scale commercial plazas, industrial parks, and multi-story parking structures requiring high-capacity storm water management.

 Factory Direct Quality Assurance & Testing

As a professional municipal castings manufacturer, we enforce a strict 100% quality inspection protocol before any batch leaves our facility:

1. Metallurgical Analysis: Spectrum testing for precise spherical graphite chemical composition to guarantee consistent material grade.

2. Load Bearing Test: Hydraulic press testing simulating the full 400 kN load to guarantee absolute structural safety.

3. Dimensional Verification: Precision caliper checks on the 600x600mm clearances to ensure zero wobble between the grate and frame.