600×600mm D400 Ductile Iron Recessed Square Manhole Cover with High Load-Bearing Capacity and ISO9001 Certification
Price:
$50-90/t
MOQ:
10 tons
Delivery Time:
45 days
Brand:
SND Foundry
Product Description
600×600mm Ductile Iron Recessed Square Manhole Cover
This ISO9001-certified recessed square cast iron manhole cover provides a durable and versatile access solution that seamlessly blends with surrounding pavement or flooring. Manufactured from high-quality ductile iron, the recessed design allows for insertion of matching materials such as concrete, tiles, or pavers.
Load Class Specifications & Applications
| Load Class | Applications |
|---|---|
| A15 | Sidewalks, green spaces, parks |
| B125 | Non-motorized lanes, residential areas |
| C250 | Parking lots, secondary roads |
| D400 | Urban main roads, motor vehicle traffic areas |
| E600 | Industrial parks, ports, areas for heavy vehicle traffic |
| F900 | Airport runways, docks, areas for ultra-heavy industrial equipment |
Product Advantages
- Enhanced security to prevent theft
- Noise reduction design
- High load-bearing capacity up to D400 class
- Superior corrosion resistance
- Safety-focused construction
Manufacturing Process
Material Preparation
High-quality pig iron and scrap iron are melted together, with magnesium added to create a ductile iron alloy.
Casting
The molten iron is poured into molds to form the basic shape of the manhole cover using sand casting for precision.
Heat Treatment
The cast pieces undergo heat treatment to improve strength and flexibility.
Surface Coating
Anti-corrosive coatings are applied to ensure longevity in various environments.
Quality Control
Each cover undergoes rigorous testing for load-bearing capacity, tensile strength, and dimensional accuracy.
Company Information
SND has been producing and selling metal goods for approximately 20 years. Our manufacturing techniques include sand casting, lost wax casting, lost foam casting, and precision machining, working with materials like cast iron, steel, stainless steel, and aluminum.
We serve various industries including automotive, rail transportation, agricultural machinery, chemical, energy, electricity, water, air compressor, and construction. Our ISO9001-certified quality control systems ensure consistent and reliable quality for every component.
Our production process includes comprehensive inspections using spectrometer, ultrasonic, magnetic, permeability, elongation, and tensile/yield strength testing.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Handan Shengnada New Material Technology Co., Ltd.
Location
No.4 Building, Wuan industry park, Handan City, Hebei, China
Contact Person
Andy