Ductile Iron EN124 D400 Manhole Cover and Frame China Factory Suppliers
The EN124 D400 Ductile Iron Manhole Cover and Frame is a premium infrastructure solution engineered for high-stress environments. Specifically designed to meet the rigorous demands of heavy traffic areas, this cover boasts a load rating of D400, enabling it to withstand weights up to 40 tons. This makes it an indispensable choice for industrial zones, international airports, and busy metropolitan roadways where safety and reliability are non-negotiable.
Manufactured from high-grade ductile iron, the product offers superior impact resistance and structural integrity compared to standard cast iron. Beyond its load-bearing capacity, it features a specialized non-slip surface to enhance pedestrian safety and a robust corrosion-resistant coating to ensure longevity in harsh outdoor environments. Combined with a secure bolted locking system, it provides an optimized balance of security, accessibility, and enduring performance.
Detailed Parameters
| External Size | Ø805 mm | Cover Diameter | Ø640 mm |
|---|---|---|---|
| Clear Opening | Ø600 mm | Total Height | 90 mm |
| Unit Weight | 42kg / 43kg | Loading Capacity | EN124 D400 (40 Tons) |
| Material | Ductile Iron | Packaging | 12 Units/Pallet |
| 20ft Container Qty | 552 Units | 40HQ Container Qty | 670 Units |
Key Advantages
Heavy Duty Load
Certified D400 rating supports up to 40 tons, ideal for airports and industrial roadways.
Extreme Durability
Made from high-strength ductile iron to prevent cracking and deformation under pressure.
Enhanced Safety
Engineered with a non-slip surface to prevent accidents for pedestrians and vehicles.
Corrosion Resistance
Resistant to rust and chemical exposure, ensuring stability in outdoor wet environments.
Secure Locking
Equipped with a bolted system to prevent unauthorized access and ensure a tight fit.
Certified Quality
Compliant with EN124 standards and accompanied by Burea Vertias Test Reports.
Product Gallery
Management Platforms
Inventory Control
Standardized pallet packing (12 units/pallet) for efficient warehousing and logistics.
Quick Installation
Precision-engineered frames ensure a seamless fit with minimal onsite adjustment.
Safety Monitoring
The bolted locking system allows for rapid security audits and authorized access.
Maintenance Ease
Compatible with specialized lifters to reduce worker strain and maintenance downtime.
Global Shipping
Optimized container loading (up to 670 units in 40HQ) for cost-effective export.
Quality Assurance
Burea Vertias testing ensures every batch meets international infrastructure standards.
Investment Return Comparison
| Feature | Standard Cast Iron | Ductile Iron D400 | Investment Value |
|---|---|---|---|
| Load Capacity | Low to Medium | Ultra High (40T) | Lower Replacement Cost |
| Impact Strength | Brittle/Prone to Crack | High Resilience | Extended Lifespan |
| Safety Level | Basic Surface | Anti-Slip Texture | Reduced Liability Risk |
| Durability | Moderate Corrosion | High Corrosion Resistance | Reduced Maintenance |
| Installation | Manual Lifting | Lifter Compatible | Lower Labor Cost |
Frequently Asked Questions
The D400 rating indicates that the manhole cover is tested to withstand a test load of 400kN (approximately 40 tons), making it suitable for carriageways of roads and hard shoulders.
Ductile iron contains spherical graphite which provides significantly higher tensile strength and ductility, preventing the cover from cracking under sudden heavy impact.
The surface is engineered with a specific embossed pattern during the casting process, providing high friction to prevent slips in wet or oily conditions.
Yes, our ductile iron covers are treated with corrosion-resistant coatings specifically designed to withstand moisture and common industrial chemicals.
Absolutely. Our products are compliant with EN124 standards and we provide Burea Vertias test reports to verify load capacity and material quality.
We recommend using our specialized ergonomic manhole lifter, which engages securely with the cover to eliminate manual straining and improve worker safety.
