Cast Iron Manhole Cover Manufacturer EN124

Material for Gratings: Ductile Cast Iron

Load Class: From A15 to F900

Square manhole covers 

Square manhole covers serve as sturdy access openings for underground pipelines and municipal utility networks. They are manufactured from high-strength materials including ductile iron and reinforced concrete.

The square structural layout delivers stable covering performance and convenient installation, perfectly suited for municipal urban infrastructure, residential communities and industrial districts.

These products feature outstanding resistance to heavy loads, physical impact and severe weather conditions, securing stable and reliable long-term operation.

Square-outer and round-inner manhole covers

This manhole cover adopts a square outer frame paired with a circular inner lid, integrating the structural stability of a square frame and the operational practicality of a circular access opening.

The square outer frame locks firmly into the surrounding pavement for stable positioning and displacement prevention. Meanwhile, the circular inner cover is convenient for hoisting, opening and routine underground maintenance work.

Fabricated from high-strength raw materials, it is engineered to bear heavy dynamic loads and endure long-term frequent service. It is widely adopted in municipal engineering projects and various public infrastructure facilities.

Round Manhole Covers

Circular manhole covers are standard and extensively adopted access covers for underground sewage, water supply and telecommunications pipelines.

The circular structure distributes bearing pressure uniformly, effectively resisting deformation under heavy vehicular traffic loads.

Available in ductile iron and composite material options, these covers deliver outstanding structural durability, anti-theft performance as well as excellent rust and corrosion resistance, guaranteeing safe and stable long-term operation across diverse working environments.

Key Features & Applications

1.Square manhole covers 

Heavy-duty access covers for underground utility networks.

The solid square structure delivers reliable load-bearing capacity and excellent corrosion resistance, widely deployed in municipal urban infrastructure and industrial areas.

2.Square-outer and round-inner manhole covers

• Square outer frame ensures structural stability; circular inner cover brings great operational convenience

• Simple lifting for quick inspection and maintenance

• Ideal for municipal engineering and public facility deployment

3.Round Manhole Covers

• Classic round design distributes bearing force evenly to avoid local deformation

• Built-in anti-theft structure, fully resistant to rust and corrosion

• Widely installed for sewage, water supply and telecommunications underground networks

Chart of Load Class

Certificate

Founded in 2006, WINWIN GROUP has obtained authoritative certifications including CE, ISO9001, ISO14001 and ISO45001. Meanwhile, WINWIN GROUP’s drainage channels and trench covers are manufactured in strict accordance with EN 1433 and EN 124 standards, ensuring superior product quality and compliance with global market requirements.

Winwin is a professional manufacturer of a complete range of drainage products, including Polymer Concrete Channels, Resin Concrete Trenches, Polymer Concrete Kerb Drains, Polymer Concrete Monolithic Drainage Channels, Slot Drains, Brickslot Drains, Trench Covers (Load Class A15KN to F900KN), Manhole Covers and other related drainage accessories. Our products have been tested in Spain and have successfully obtained the CE certification.

Our integrated drainage solutions are widely adopted for municipal roads, parking lots, logistics parks, commercial plazas, industrial zones, hospitals, landscape projects and other public infrastructure. They apply to building drainage, municipal water supply & drainage, road works and industrial floor drainage.Compliant with international quality standards, our products effectively prevent waterlogging and safeguard the structure of surrounding facilities.

With 20 years of manufacturing and exporting experience, we provide reliable quality, stable performance and competitive prices for global customers.

Welcome to contact us for long-term win-win cooperation.