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CO Dia 300mm(11.8") F900 Heavy Duty Round Ductile Iron Manhole Covers with Hinge Apply to Airport

Heavy duty manhole covers
EN124 F900 manhole covers
Ductile iron manhole cover
Round manhole cover
casting iron manhole cover
manhole and frame

CO Dia 300mm(11.8") F900 Heavy Duty Round Ductile Iron Manhole Covers with Hinge Apply to Airport

High-strength ductile iron round manhole cover system (Clear Opening Dia 300mm, F900) with hinged heavy-duty design. Engineered for ultra-heavy load access cover applications in airport aprons, cargo terminals, port yards and extreme heavy-traffic zones.
 
  • Material :

    Ductile Iron
  • Customization Logo :

    Support
  • Certifications :

    ISO9001,ISO14001,ISO45001,CE
  • Paint and Color :

    Bitumen Paint
  • Clear Open/Clean Aperture :

    Dia 300 mm
  • Frame Dimensions :

    Dia 402 mm*80mm
  • Hinged :

    Yes
  • Product Details

Product Introduction

Crafted from high-grade ductile iron via precision casting and heat treatment, this F900 heavy-duty round hinged manhole cover with 300mm clear opening (11.8") provides superior compressive resistance, impact toughness and long-term structural stability for extreme load scenarios. Compliant with BS EN 124 standard, the complete assembly includes cover and matching frame, with a 402mm overall frame diameter and 80mm frame height. 

Built-in hinge design prevents accidental loss of the cover during maintenance, while the tight fit effectively eliminates rattling noise under frequent heavy vehicle passage. Featuring excellent wear resistance, anti-slip surface, oxidation and weather resistance, it maintains reliable performance under harsh outdoor conditions. Fully rated F900, it is engineered to withstand ultra-heavy loads, making it specially suitable for airport pavement, apron, cargo terminals and other heavy-load zones. It delivers stable long-term service with minimal routine maintenance.

 

Product Advantages

  • F900 Ultra-Heavy Duty Rating: Engineered to withstand extreme loads, making it the ideal access cover for high-traffic zones like airport aprons, cargo terminals, and port yards.
  • Hinged & Anti-Rattle Design: The built-in hinge prevents accidental cover loss during maintenance, while a precision tight fit eliminates rattling noise under heavy vehicle passage.
  • Premium Ductile Iron Durability: Precision-cast and treated with a bitumen coating for superior impact toughness, anti-slip performance, and weather resistance with minimal maintenance.
  • Certified Quality & Customization: Fully compliant with the BS EN 124 standard and backed by CE/ISO certifications. We also support custom logo designs to meet specific project requirements.

 

 

 

 

Product structure size

(mm)

Cover Clear Open L*W Loading Class
Dia 300 F900
Manhole Frame L*W

Frame Height

Dia 402 80

 

 

 

 

 

 

  • Airport Runways & Aprons

    Safely supports the massive weight and impact of commercial and cargo aircraft.
  • Military Facilities

    Delivers reliable structural stability under heavy armored vehicles and specialized equipment.
  • Docks & Ports

    Built to endure continuous, high-stress traffic in busy cargo terminals and shipping container yards.
  • Heavy Industrial Zones

    Perfect for any extreme-load pavement subjected to frequent heavy machinery passage.

 

FAQ

What does the F900 load rating mean, and where should this manhole cover be used?

The F900 load class, as defined by the BS EN 124 standard, indicates that the manhole cover is engineered to withstand extreme test loads of up to 900kN. This makes our ductile iron manhole cover specifically suitable for ultra-heavy traffic zones. Typical applications include airport runways, aircraft aprons, military facilities, commercial docks, and heavy-duty port yards where extreme wheel loads are constant.

Why does this heavy-duty manhole cover feature a hinged design?

The built-in hinge design provides two critical advantages for demanding infrastructure projects. First, it securely attaches the 24kg cover to the frame, preventing accidental loss, dropping, or theft during routine underground maintenance. Second, it ensures a precision fit that eliminates dangerous displacement and rattling noises when heavy vehicles, such as cargo planes or container handlers, pass over it

Are these F900 manhole covers certified, and do you support custom logos?

Yes, our heavy-duty ductile iron products are manufactured under strict quality controls and are fully backed by CE, ISO9001, ISO14001, and ISO45001 certifications. As a direct manufacturer, we also support custom casting services. We can integrate specific municipal logos, utility labels, or project branding directly onto the anti-slip surface of the cover to meet your project's compliance requirements.

 

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CO Dia 300mm(11.8") F900 Heavy Duty Round Ductile Iron Manhole Covers with Hinge Apply to Airport
High-strength ductile iron round manhole cover system (Clear Opening Dia 300mm, F900) with hinged heavy-duty design. Engineered for ultra-heavy load access cover applications in airport aprons, cargo terminals, port yards and extreme heavy-traffic zones.  
  • 3 production bases and 4 series products
  • 9 standardized digital workshops and 7 digital automatic production lines.
  • More than 200 sets of hydraulic equipment and More than 600 employees.
  • 200.000㎡ factory area.
  • Passed the CE,ISO9001, ISO14001 and ISO45001 certificates.
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