Indus Industrial Group supplies ultra-heavy-duty Class F900 Airport Runway and Heavy Industrial Ductile Iron Manhole Covers and Frames engineered across clear opening diameters of 600mm and 800mm with a certified proof test load of 900 kN (90 metric tons) according to EN 124-2:2015 standards. Designed specifically for military airbases, commercial airport runways and taxiways, container port berths, and heavy crane loading docks across Iraq, these ultra-thick spheroidal graphite ductile iron (EN-GJS-500-7) covers feature heavy internal cross-bracing webs, continuous EPDM elastomeric damping cushions, and captive stainless steel security locking bolts.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | EN 124-1/2:2015 / FAA Advisory Circular AC 150 / ISO 1083 / CE |
| Load Classification | Class F900 (900 kN / 90 Metric Tons Proof Load Test) |
| Clear Opening Sizes | 600 mm (24") and 800 mm (32") Diameter |
| Material Grade | Spheroidal Graphite Ductile Iron EN-GJS-500-7 (min 500 MPa tensile strength) |
| Proof Load Testing | 100% batch tested to 900 kN per EN 124-2 third-party lab |
| Elastomeric Cushion | Continuous Heavy-Section EPDM Cushion Gasket in Dovetail Groove |
| Locking System | 4 to 8 Stainless Steel AISI 316 High-Tensile Captive Bolts |
| Frame Design | Square / Circular Airfield Frame with Deep Concrete Anchorage Flange |
| Skid Resistance | High-Profile Raised Diamond Skid Pattern (PSR value ≥ 65) |
| Surface Protection | Heavy Bituminous Airfield Black Coating / Industrial Epoxy |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Ductile Iron Manhole Covers |
Commercial airport runways and taxiways (Baghdad, Erbil, Basra airports), military airbase aprons, Grand Faw Port container terminals, heavy industrial crane tracks, and oil refinery heavy vehicle routes across Iraq.
Class F900 Airport Runway and Heavy Industrial Ductile Iron Manhole Covers and Frames represent the highest load-bearing infrastructure casting standard deployed across military airfields, commercial international airports, and heavy container port terminals in Iraq. At critical facilities like Baghdad International Airport, Erbil International Airport, and the Grand Faw Port container berths in Basra, underground utility and drainage chambers are subjected to extreme wheel impact loads from heavy aircraft (Boeing 777, Airbus A380, military transports) and automated container straddle carriers exceeding 80 to 90 metric tons per wheel. Standard highway covers would shatter catastrophically under these extreme dynamic point impacts.
Governed strictly by EN 124-2:2015 Class F900 (certified proof load of 900 kN / 90 tons per ISO 1083), Indus covers are cast with massive wall sections and deep radial reinforcing ribs from high-tensile spheroidal graphite ductile iron (EN-GJS-500-7) delivering exceptional impact toughness and yield strength exceeding 320 MPa. The frame features an expanded deep mortar key bed that anchors permanently into high-early-strength airfield concrete pavements, transferring immense dynamic aircraft braking and landing impact forces directly into the surrounding civil runway slab.
The cover seats on a continuous heavy-duty EPDM elastomeric silencing cushion housed in a machined dovetail channel, eliminating metal-to-metal fatigue and chatter. Secured by 4 to 8 high-tensile stainless steel locking bolts, the cover cannot dislodge under high jet engine exhaust blast. Staged at our Erbil, Baghdad, and Basra facilities, Indus supplies F900 covers with full EN 10204 3.1 inspection certification and third-party laboratory proof load test certificates.
Class D400 is rated for 40 tons (standard highway trucks). Heavy widebody commercial aircraft and military cargo planes exert wheel loads up to 60–90 tons during hard landings and high-speed braking. Class F900 is engineered and certified to 90 tons proof load, ensuring absolute runway safety.
Jet engine exhaust creates intense aerodynamic suction forces. Indus F900 covers are locked to the heavy frame using multiple high-tensile stainless steel captive hex bolts, completely preventing the cover from being lifted or sucked out by aircraft jet wash.
Yes. Every batch of Indus F900 covers is delivered with authentic third-party laboratory hydraulic press proof-load test certificates documenting successful 900 kN load application with zero residual deformation per EN 124-2.
