Ductile Iron Round Manhole Cover D400 EN124 China Factory Suppliers
Our premium Round Manhole Covers are engineered to meet the rigorous EN124 Standard Class D400, specifically designed for high-traffic urban environments. Constructed from high-grade ductile iron, these covers provide an exceptional balance of strength and flexibility, ensuring a loading capacity of up to 40 tons to withstand the heaviest vehicular loads without deformation.
Designed for long-term infrastructure reliability, our manhole covers feature an advanced anti-slip surface for maximum safety and a sophisticated double-sealed system that effectively prevents odors and water leakage. Whether for sewerage systems or municipal drainage, our precision-cast solutions offer a durable, easy-to-install, and maintenance-free experience for modern city planning.
Detailed Parameters
| External Size | Ø825mm / Ø820mm | Clear Opening | Ø600mm |
|---|---|---|---|
| Cover Diameter | Ø625mm / Ø645mm | Height | 100mm |
| Unit Weight | 47KG / 50KG | Loading Capacity | EN124 D400 (40 Tons) |
| Material | High-Quality Ductile Iron | Container Qty (20ft) | 441 units |
| Standard | European EN 124 | Surface Finish | Anti-slip Coating |
Key Advantages
Heavy-Duty Strength
Class D400 certification ensures a 40-ton load capacity, ideal for roads and pedestrian streets.
Extended Lifespan
High-grade ductile iron resists wear and corrosion, significantly reducing replacement cycles.
Precision Casting
State-of-the-art molds eliminate air pockets and weak points for structural integrity.
Double-Seal System
Innovative sealing prevents foul odors and water seepage, enhancing urban hygiene.
Enhanced Safety
Specialized anti-slip surface textures provide grip for both pedestrians and vehicles.
Easy Installation
Standardized dimensions allow for seamless integration with existing urban landscapes.
Product Gallery
Management Platforms
Material Selection
Rigorous vetting of top-grade raw materials for maximum durability and wear resistance.
Thermal Control
Controlled melting environments to achieve optimal metal consistency and purity.
Mold Precision
Intricate mold crafting ensuring accurate shapes and seamless landscape integration.
Casting Flow
Advanced liquid metal flow management to eliminate air pockets and weak points.
Controlled Cooling
Optimized cooling processes to enhance the structural strength of the ductile iron.
Quality Inspection
Comprehensive 100% inspection system to ensure zero defects before delivery.
Investment Return Comparison
| Loading Class | Application Area | Load Resistance |
|---|---|---|
| Class A15 | Pedestrian/Cyclist Areas | 15 kN |
| Class B125 | Sidewalks/Car Parking | 125 kN |
| Class C250 | Street Gutters/Shoulders | 250 kN |
| Class D400 | Road Surfaces/Pedestrian Streets | 400 kN |
| Class E600 | Private Roads/Heavy Traffic | 600 kN |
Frequently Asked Questions
Class D400 is designed for roads and hard shoulders, supporting a load resistance of 400kN (approx. 40 tons), making it significantly stronger than Class A15 or B125 used for sidewalks.
Ductile iron offers superior tensile strength and flexibility, allowing it to withstand heavy impact and pressure without cracking, unlike the more brittle grey iron.
The double-seal prevents the escape of hazardous sewer gases and odors into the street while preventing surface water from infiltrating the system during heavy rain.
Yes, our ductile iron covers are treated with high-quality coatings that provide excellent resistance to corrosion and environmental wear.
Yes, while we offer standard EN124 sizes, we can provide customized casting based on your technical drawings and load requirements.
Lead times vary by order volume, but our optimized production process ensures efficient turnaround. Please contact us for a specific shipping schedule.
