Product Overview
The LWSRC2002 Heavy-Duty Ductile Iron Manhole Cover is engineered specifically to meet the demanding requirements of modern urban infrastructure and heavy-traffic environments. Manufactured from high-grade ductile cast iron (ISO 1083 / JS 500-7), this assembly provides exceptional tensile strength, impact absorption, and long-term structural integrity compared to traditional gray cast iron.
Rated to Class D400 load specifications (withstanding test loads up to 400 kN), the cover features a durable black bitumen coating for optimal resistance against rust, moisture, and road chemicals, making it the ideal municipal solution for main roadways and industrial zones.
Key Features & Advantages
High Load-Bearing Capacity (D400): Capable of supporting heavy vehicular traffic (up to 40 tons), ensuring safety on highways, carriageways, and dock areas.
Superior Material Grade: Built with ductile iron 500-7, offering superior elongation and fatigue resistance to prevent cracking under repeated heavy wheel impacts.
Anti-Slip Tread Design: Specially textured surface pattern provides superior skid resistance for tires and pedestrians, even in wet and icy weather conditions.
Corrosion-Resistant Finish: Treated with standard black bitumen dipping/painting for robust weatherproofing and extended outdoor lifespan.
Stable & Quiet Fit: Engineered seating and square-to-round frame geometry ensure tight seating, reducing noise, rattling, and cover displacement during vehicle rollover.
Technical Specifications
| Product Model | LWSRC2002 |
| Loading Class / Standard | Class D400 (400 kN / 40 Tonnes) / EN 124 Compliant |
| Material | Ductile Cast Iron (ISO 1083 / JS 500-7 / GGG50) |
| Total Weight | Approx. 61 kg |
| Surface Treatment | Black Bituminous Coating (Epoxy paint available upon request) |
| Design Type | Square flange frame with round inner cover profile |
Typical Applications
Class D400 ductile iron covers are engineered for high-stress municipal and civil installations, including:
Main carriageways, arterial roads, and expressways
Commercial parking facilities and freight depots
Hard shoulders and transit service lanes
Industrial parks, logistics hubs, and shipping terminals
OEM & Custom Services
We provide comprehensive OEM/ODM casting services tailored to global project standards. Custom options include embossed client logos, local municipal markings, custom lock/hinge mechanisms, and third-party inspection reports (SGS / BV / CE). Contact our technical sales team for CAD drawings and wholesale quotes.
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