Ductile Iron Square Frame Round Cover 850x850 D400 China Factory Suppliers
Our premium Square Frame and Round Cover (850850mm) is engineered specifically for the demanding infrastructure requirements of the Algerian market. Designed as a critical component for urban sewer systems and underground utilities, this high-performance manhole cover ensures seamless access for maintenance while providing a robust protective barrier between subterranean networks and surface traffic.
Crafted from superior-grade ductile iron, this D400-rated solution combines a modern aesthetic with industrial-strength durability. Whether deployed in high-traffic residential zones, commercial hubs, or heavy-duty industrial sites, its precision engineering prevents unauthorized access and safeguards pedestrians and vehicles, making it an indispensable asset for sustainable city development.
Detailed Parameters
| External Size | 850mm x 850mm | Cover Diameter | Ø640mm - Ø645mm |
|---|---|---|---|
| Clear Opening | Ø600mm | Frame Height | 70mm - 100mm |
| Unit Weight | 40kg - 58kg | Loading Class | EN124 D400 / C250 / B125 |
| Material | High-Quality Ductile Iron | Standard | EN124 Compliant |
| Packing | 10-15 Units/Pallet | Container Load | 480-650 Units (20ft) |
Key Advantages
Heavy-Duty Load Capacity
D400 rating ensures maximum stability under heavy vehicle traffic, making it ideal for main roads and parking lots.
Extreme Durability
Made from premium ductile iron to resist wear, corrosion, and environmental stress over long-term usage.
Precision Engineering
Perfect fit between the square frame and round cover minimizes noise and prevents displacement under pressure.
Modern Urban Design
The stylish square-to-round transition enhances the visual landscape of modern Algerian city infrastructure.
Enhanced Safety
Provides a secure seal that prevents unauthorized entry and protects the public from underground hazards.
Global Standard Compliance
Strictly adheres to EN124 specifications, guaranteeing reliability and quality for municipal projects.
Product Gallery
Management Platforms
Inventory Control
Optimized palletization (10-15 units/pallet) for efficient warehousing and rapid deployment.
Quality Assurance
Rigorous stress testing to ensure every unit meets the D400 load capacity requirements.
Logistics Tracking
Streamlined shipping processes for Algeria, ensuring timely delivery for large-scale projects.
Site Installation
Standardized dimensions allow for rapid installation into existing urban utility grids.
Batch Management
Precise batch tracking to maintain material consistency across thousands of units.
Lifecycle Maintenance
Low-maintenance ductile iron surface reduces the cost of long-term infrastructure upkeep.
Investment Return Comparison
| Feature | Standard Cast Iron | Our Ductile Iron (D400) | Benefit |
|---|---|---|---|
| Load Strength | Low to Medium | Very High (D400) | Higher Safety |
| Durability | Prone to Cracking | High Elasticity | Longer Lifespan |
| Weight Ratio | Heavy/Inefficient | Optimized Strength | Easier Handling |
| Corrosion Resistance | Moderate | Superior Coating | Lower Maintenance |
| Installation Cost | Frequent Replacements | One-time Investment | Better ROI |
Frequently Asked Questions
D400 is a load class according to EN124, meaning the cover can withstand a test load of 400kN. This makes it suitable for carriageways of roads, hard shoulders, and parking areas used by all road vehicles.
Ductile iron has higher tensile strength and elasticity, meaning it can bend without breaking. This prevents the sudden fractures common in grey cast iron under heavy impact or load.
Yes, our products are treated with anti-corrosive coatings designed to withstand extreme temperature fluctuations and environmental humidity, ensuring longevity in Algerian urban settings.
As a professional casting manufacturer, we can produce various shapes and sizes tailored to your specific project requirements while maintaining strict compliance with international standards.
Lead times vary based on order volume and specifications, but we maintain an efficient production cycle to ensure timely delivery for our municipal and industrial clients.
Our covers are designed with precision-fit frames that provide a secure seal. Depending on the requirement, locking mechanisms can be integrated to enhance security.
