EN124 D400 Ductile Iron Circle Manhole Cover Suppliers and Factory in China
Our EN124 D400 Circle Manhole Covers and Frames are engineered from premium ductile iron, a high-strength material developed to offer mechanical properties comparable to steel. By utilizing advanced spheroidization and inoculation treatments, we transform standard cast iron into a robust, nodular structure that ensures exceptional ductility, toughness, and wear resistance, making it the ideal solution for heavy-duty urban infrastructure.
Specifically designed for the Mexican market and international standards, these circular manhole covers are optimized for maximum safety. Unlike square covers, the circular geometry prevents the lid from falling into the shaft regardless of its orientation, ensuring the safety of pedestrians and vehicles in high-traffic urban road management areas. Whether for city sewers or industrial drainage, our products deliver unmatched structural integrity.
Detailed Parameters
| External Size | Ø795 mm | Cover Diameter | Ø635 mm |
|---|---|---|---|
| Clear Opening | Ø600 mm | Height | 80 mm |
| Unit Weight | 50 kg | Loading Capacity | EN124 D400 |
| Unit per Pallet | 10 Units/Pallet | 20ft Container Qty | 420 Units |
| 40HQ Container Qty | 560 units | Material Grade | Ductile Iron |
Key Advantages
Superior Strength
Ductile iron provides higher strength and toughness than carbon steel, resisting deformation under extreme loads.
Long-term Durability
Excellent wear and corrosion resistance ensures a prolonged service life in harsh environmental conditions.
EN124 D400 Certified
Fully compliant with international load-bearing standards for carriage-ways and hard shoulders.
Anti-Fall Design
The circular shape ensures the cover cannot fall through the opening, maximizing public safety.
Precision Casting
Advanced spheroidization ensures uniform graphite distribution for consistent material performance.
Optimized Logistics
Standardized palletizing allows for efficient shipping and high-volume container loading to Mexico.
Product Gallery
Management Platforms
Quality Control
Strict adherence to ductile iron material specifications and spheroidization checks.
Production Efficiency
High-capacity casting lines ensuring stable supply for large-scale municipal projects.
Standard Compliance
Rigorous testing to meet EN124 standards for load capacity and structural integrity.
Logistics Management
Expert handling of export documentation and shipping for the Mexico region.
Inventory Control
Optimized storage and palletization for fast turnaround and delivery.
Customer Support
Dedicated technical assistance for product installation and specification selection.
Investment Return Comparison
| Feature | Gray Cast Iron | Our Ductile Iron | Steel Plates |
|---|---|---|---|
| Load Capacity | Low/Brittle | High (D400) | Very High |
| Durability | Moderate | Excellent | High (Corrodes) |
| Safety Risk | High (Cracking) | Very Low | Moderate |
| Service Life | Short-Medium | Long-term | Medium |
| Cost-Efficiency | Low (Replacement) | High (Value) | Medium |
Frequently Asked Questions
Ductile iron undergoes a spheroidization process that makes it significantly stronger and more flexible (ductile) than gray iron, which is brittle and prone to cracking under heavy loads.
Circular covers cannot fall through their own openings regardless of how they are positioned, whereas square covers can fall in diagonally, posing a severe safety risk.
The D400 rating indicates that the cover is designed to withstand a test load of 400kN, making it suitable for areas with high traffic, such as main roads and parking lots.
Yes, we specialize in exporting high-quality ductile iron products to Mexico, providing all necessary documentation and optimized shipping containers.
Ductile iron is often referred to as "iron instead of steel" because it offers similar strength and toughness but generally provides better casting complexity and corrosion resistance in sewer environments.
Yes. While circular covers are used for urban roads, square covers are typically used in rural areas or cable wells to better prevent the ingress of liquids like rainwater.
