Round Common Sizes: Φ300mm-Φ1000mm

Square covers Common Sizes: Φ300mm,-Φ1000mm.

Product Detail | Technical Information | Packaging

Product Detail

Shanghai Metal Corporation is a leading manufacturer and supplier of manhole covers

Cast iron manhole covers are mainly made of gray cast iron or ductile cast iron. Gray cast iron manhole covers have a relatively low cost and possess certain strength and wear resistance. They were widely used in early urban construction. Ductile cast iron manhole covers, on the other hand, perform more outstandingly in terms of strength and toughness. The graphite inside them is spheroidally distributed, which greatly improves the mechanical properties of the material. The tensile strength of ductile cast iron manhole covers can reach over 400MPa, and the yield strength can reach over 300MPa. They can withstand the repeated rolling of heavy - duty vehicles and are suitable for heavy - traffic areas such as urban main roads and expressways. However, cast iron manhole covers also have the problem of being prone to rust. When exposed to a humid environment for a long time, they will gradually corrode, affecting their service life. Therefore, regular anti - rust treatment is required.

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1.High strength: It has high compressive, bending and impact resistance strength, as well as toughness. After long - term use, this product will not be crushed or damaged.

2.Beautiful appearance: The surface pattern of the manhole cover is exquisitely designed, and the color is bright and adjustable, which can beautify the urban environment.

3.Convenient to use and lightweight: The weight of the product is only about one - third that of cast iron, making it convenient for transportation, installation and emergency repair, and greatly reducing the labor intensity.

1.Municipal Drainage and Sewage System: In urban roads and residential communities, manhole covers are used to cover stormwater wells and sewage wells. The covers on stormwater wells can collect rainwater from the road surface and direct it into underground drainage pipes, preventing road flooding from affecting traffic and endangering pedestrian safety.

2.Gas and Heat Transportation Assurance: Gas manhole covers are used for gas pipeline inspection wells. In the event of a gas leak, the covers can limit the spread of gas, prevent hazards such as explosions, and facilitate maintenance by workers.

Technical of Manhole Cover：

Manhole Cover Type	Manhole Cover Specification	Estimated Bearing Capacity (unit: kN)
Square Cast Iron Manhole Cover	400×400mm	Approximately 30 - 50
Square Cast Iron Manhole Cover	400×600mm	Approximately 40 - 60
Square Cast Iron Manhole Cover	500×500mm	Approximately 50 - 80
Square Cast Iron Manhole Cover	500×700mm	Approximately 60 - 90
Square Cast Iron Manhole Cover	500×800mm	Approximately 70 - 100
Square Cast Iron Manhole Cover	600×600mm	Approximately 80 - 120
Square Cast Iron Manhole Cover	600×800mm	Approximately 100 - 150
Square Cast Iron Manhole Cover	600×1000mm	Approximately 120 - 180
Square Cast Iron Manhole Cover	700×700mm	Approximately 150 - 200
Square Cast Iron Manhole Cover	700×800mm	Approximately 180 - 220
Square Cast Iron Manhole Cover	1000×1000mm	Approximately 200 - 300
Square Cast Iron Manhole Cover	1000×1200mm	Approximately 250 - 350
Square Cast Iron Manhole Cover	1200×1200mm	Approximately 300 - 400
Manhole Cover Type	Manhole Cover Specification	Estimated Bearing Capacity (unit: kN)
Round Cast Iron Manhole Cover	Φ300mm	Approximately 15 - 25
Round Cast Iron Manhole Cover	Φ400mm	Approximately 25 - 40
Round Cast Iron Manhole Cover	Φ500mm	Approximately 40 - 60
Round Cast Iron Manhole Cover	Φ600mm	Approximately 60 - 90
Round Cast Iron Manhole Cover	Φ700mm	Approximately 90 - 130
Round Cast Iron Manhole Cover	Φ800mm	Approximately 130 - 180
Round Cast Iron Manhole Cover	Φ900mm	Approximately 180 - 240
Round Cast Iron Manhole Cover	Φ1000mm	Approximately 240 - 350

Packing of Manhole Cover：

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Manhole Cover

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