Handan Shengnada New Material Technology Co., Ltd.
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Corrosion resistance Municipal roads Ductile Iron Manhole Cover
Basis Information
Detailed description of square cast iron manhole cover
Square cast iron manhole cover is a product used to cover underground pipe wells, mainly used in municipal engineering, road facilities, residential areas, industrial parks and other scenes. It not only protects underground facilities and prevents debris or rainwater from entering the pipes, but also provides pedestrian and vehicle traffic safety. The following is a detailed description of the square cast iron manhole cover:
1. Product Introduction
Square cast iron manhole covers are cast with high-quality cast iron materials (such as ductile iron or gray cast iron) and are square or rectangular in shape. The square design is particularly suitable for wells in fixed positions and is more adaptable than round manhole covers in some special scenarios, such as square wells or sites that require large spans.
2. Product Material
Depending on application requirements, square cast iron manhole covers are generally made of the following two materials:
Ductile Iron:
High strength, good toughness, and superior compressive resistance.
Strong corrosion resistance, suitable for long-term outdoor use.
It has good fatigue resistance and can withstand high traffic frequency and heavy loads.
Gray Iron:
It has good pressure bearing capacity and is suitable for light or medium load areas.
It has relatively low cost and better economy.
Product Description
| Outer Dimensions (mm) | Clear Opening (mm) | Thickness (mm) | Load Class | Weight (kg) | Application Scenarios |
|---|---|---|---|---|---|
| 500 × 500 | 400 × 400 | 30 | A15 | 25 | Pedestrian areas, parks, greenbelts |
| 600 × 600 | 500 × 500 | 35 | B125 | 35 | Non-motorized lanes, residential paths |
| 700 × 700 | 600 × 600 | 40 | C250 | 50 | Parking lots, secondary roads |
| 800 × 800 | 700 × 700 | 45 | D400 | 75 | Urban main roads, general traffic zones |
| 1000 × 1000 | 900 × 900 | 50 | E600 | 120 | Industrial zones, heavy vehicle areas |
A15: Suitable for pedestrian paths, parks, and non-traffic areas.
B125: Designed for sidewalks, residential paths, and non-motorized lanes.
C250: Suitable for medium traffic areas like parking lots and secondary roads.
D400: Ideal for urban main roads and motorized traffic areas.
E600: Designed to handle heavy-duty loads for industrial zones and logistics parks.
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. Sand casting is a common method due to its precision and efficiency.
Heat Treatment: The cast pieces are treated with heat 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 Introduction
SND has been producing and selling metal goods for about 20 years.By using manufacturing techniques including sand casting, lost wax casting, lost foam casting, and precision machining, the company has been supplying goods made of materials like cast iron, steel, stainless steel, aluminum, etc. Additionally offered are surface finishing and assembly services.
Our company has successfully created products in a variety of industries, including automotive, rail transportation, agricultural machinery, chemical, energy, electricity, water, air compressor, and construction, thanks to our consistent efforts over the past few years.
Our factories' ISO9001-accredited quality control systems guarantee a consistent and dependable quality for each and every component.
Spectrometer, ultrasonic, magnetic, permeability, elongation, tensile/yield strength, and other inspections are carried out as part of routine production procedures.
