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700*700mm（27.6"）F900 Heavy Duty Square Ductile Iron Manhole Covers Apply to Airport

700*700mm（27.6"）F900 Heavy Duty Square Ductile Iron Manhole Covers Apply to Airport

Engineered to BS EN 124-2 standards, this 700x700mm F900 heavy-duty ductile iron manhole cover safely withstands 90-ton dynamic loads, making it the ideal solution for high-stress environments like airports and seaports.

Material :
Ductile Iron
Customization Logo :
Support
Certifications :
ISO9001,ISO14001,ISO45001,CE
Paint and Color :
Bitumen Paint
Clear Open/Clean Aperture :
700mm*700 mm
Frame Dimensions :
830mm*830 mm*100mm

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Product Details

Product Introduction

Manufactured with premium EN-GJS-500-7 (GGG50) ductile iron, our heavy-duty square access covers are purposefully designed to sustain the extreme operational demands of commercial airports, dockside terminals, and high-density logistics parks. Offering a precise 700x700mm clear opening, these covers deliver a robust tensile strength exceeding 500MPa to effortlessly handle continuous high-tonnage wear from aircraft taxiing and reach stackers.

Product Advantages

Ultra F900 Load Rating: Engineered to withstand 900 kN (90 Tons) dynamic load, fully complying with BS EN 124-2. Built to handle heavy wheel loads from aircraft (A380/B777) and port reach stackers without deformation.
Ductile Iron GGG50: Manufactured with EN-GJS-500-7 (GGG50) ductile iron with high tensile strength (≥500MPa) and elongation (≥ 7%).Superior shock absorption and high fracture resistance compared to traditional grey iron.
Hinged & Anti-Theft Lock: Features an integrated heavy-duty hinge that opens smoothly for maintenance while preventing theft and accidental cover dislodgement caused by high aircraft jet blasts.
Anti-Rattle & Stability: Precision-machined seating surfaces and wide frame flanges eliminate rattling noises under vehicle impact and ensure optimal load distribution into the concrete base.
Corrosion Resistance: Coated with heavy-duty bituminous paint or epoxy finish to resist coastal salt fog, fuel spillage, acidic wastewater, and freezing temperatures, ensuring 30+ years service life.

Product structure size (mm)	Cover Clear Open L*W	Weight of Cover(KG)	Loading Class
	700X700	91	F900
	Manhole Frame L*W	Weight of Frame(KG)	Frame Height
	830X830	34	100

Airports

Installed in runways, taxiways, and aprons for fueling, drainage, and lighting utility access under extreme aircraft wheel impacts.
Ports & Docks

Applied in container yards and dockside terminals to sustain thousands of daily passes by heavy-loaded reach stackers and trucks.
Logistics Hubs

Ideal for high-density heavy truck entrances, logistics parks, and highway toll stations subjected to continuous high-tonnage wear.

*Delivering quality products to our loyal customers.

*Providing strong after sales services.

*Respecting our valued clients.

*Investing in people for the future of our companies.

*Meeting challenges of fast growing economies.

*Building trust in local and export markets.

FAQ

Why is EN124 F900 class mandatory for airport runways?

EN124 F900 is rated for 900 kN (90 Tons) load capacity. Airport runways and taxiways experience immense static and dynamic forces during aircraft taxiing and landing. Lower classes like D400 or E600 will deform or crack under such pressure, creating severe safety hazards for aviation operations.

What is the difference between GGG50 ductile iron and grey iron?

Ductile iron (GGG50/EN-GJS-500-7) features nodular graphite, providing double the tensile strength (≥500MPa) and vastly superior elongation (≥ 7%). compared to grey cast iron. This prevents brittle fractures under high-impact wheel loads while reducing overall casting weight.

Can you customize OEM logos, surface markings, and security locks?

Yes, 100% custom-friendly. As a direct manufacturer, we can cast your project logo, municipal badges, or custom text (e.g., "AIRPORT", "WATER", "ELECTRIC") directly onto the cover surface. Special locking screws and airtight seals are also available.

What quality certifications and load test reports do you provide?

Our factory is certified under ISO 9001, ISO 14001, and ISO 45001. All F900 covers come with CE compliance and can be supplied with third-party load test reports (from SGS, TÜV, or BV) as well as Material Mill Test Certificates.

How are these heavy covers packaged for overseas ocean transport?

Covers and frames are individually packed on heavy-duty fumigated wooden pallets or steel pallets, secured with high-tensile steel/PET strapping, and shrink-wrapped with waterproof plastic film to guarantee zero transit damage during sea freight.

Hot Tags : Ductile iron heavy duty manhole covers and frames Casting iron airport manhole cover and frame Airport solid top manhole covers EN124 F900 manhole covers Heavy duty manhole covers Municipal and infrastructure manhole covers

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Location
Add: Hanshan Industrial Area ( Lintou ), Maanshan City, Anhui Province, China
Email
rae.w@feilong-group.com
Phone
+86 188 2526 5625