MIDAS Ductile Iron Gully Grating with Frame is manufactured to EN124 standards using high-strength GGG500-7 ductile iron for reliable drainage performance and long-term durability. Featuring a corrosion-resistant bitumen coating, it is suitable for municipal roads, parking areas, and industrial drainage systems. Available in C250, D400, and custom load classes, the grating provides excellent load-bearing capacity and stable installation.
Our ductile iron gully grating with frame is manufactured from premium spheroidal graphite cast iron (GGG 500-7 / GGG 450-10) in full conformity with EN 124-2:2015 standards — available in load classes from B125 through E600, with the C250 and D400 configurations accounting for the majority of municipal and road-side drainage applications worldwide.
As a professional supplier specializing in municipal and infrastructure fields, MIDAS Industrial delivers precisely engineered drainage solutions trusted by municipal contractors, infrastructure developers, and civil engineering project managers across Europe, the Middle East, Southeast Asia, and beyond.
Standard: EN124/GGG500-7
Material: Ductile Iron
Coating: Bitumen coating
Load Capacity：C250
Frame size: 300*1000*60
Clear opening: 250*1000 mm
Package:
Iron or plywood or fumigated wooden pallet, wrap film to keep the clean, the pallet should be enough strong which is suitable for the long time sea transportation and bear with the bumps in transit.
High-strength Material: Precisely cast from ductile iron GGG 500-7 or 450-10, with tensile strength and toughness far exceeding ordinary cast iron. Even when subjected to continuous rolling of heavy vehicles, it can disperse stress through slight deformation to avoid brittle fracture. It fully meets the load requirements from C250 to D400 in the EN 124 standard, building a solid defense for the safety of pedestrians and vehicles.
All-scene Weather Resistance: The surface undergoes double anti-corrosion treatment - asphalt coating resists outdoor temperature differences and ultraviolet erosion, while powder coating enhances rust resistance. It can operate stably for a long time in complex environments such as humidity, dust, acid, and alkali, with a service life 30% longer than traditional products.
Detailed Safety Design: The grating surface adopts 3mm convex pattern technology, which can significantly improve friction in rainy days or when there is water accumulation, reducing the risk of pedestrians slipping; the edges are rounded to avoid collision damage during installation and maintenance.
Modular Installation: The frame and grating are connected by a buckle-type design, requiring no complex tools for on-site installation, and can be fixed by a single person; the grating can be quickly disassembled, facilitating regular cleaning of debris such as fallen leaves and sediment in the drainage channel, reducing the risk of blockage and lowering operation and maintenance costs.
Customized Specifications: In addition to standard sizes such as 300×300mm, 400×400mm, and 500×500mm, we can customize the frame depth, grating net opening size, and load-bearing level according to customer needs, perfectly adapting to different scenarios such as community roads, commercial plazas, parking lots, industrial plants, and municipal main roads.
The ductile iron gully grating with frame serves as a critical drainage interface across a wide range of infrastructure environments:
Urban Road & Highway Drainage — The D400-class configuration is the standard specification for kerb-side gully pots and channel drainage along municipal roads, dual carriageways, and urban arterials. Compatible with standard UK/European 450×750 mm gully pot openings and custom dimensions for continental markets.
Commercial & Logistics Developments — Warehouse forecourts, logistics parks, and distribution centre yards subject to HGV axle loads demand D400 or E600 rated gully gratings with frame. The ductile iron construction withstands repeated 40-tonne vehicle movements without settlement or cracking.
Car Parks & Private Access Roads — C250-class gratings are the typical specification for multi-storey car parks, supermarket car parks, and private estate roads. The lighter 250 kN rating reduces unit weight and material cost without compromising performance in these lower-load environments.
Industrial Plants & Factories — Process water and surface runoff drainage in manufacturing facilities, chemical plants, and power stations often requires E600 ratings combined with epoxy coating for chemical resistance. MIDAS supplies bespoke specifications for these applications on request.
Residential Developments & Public Realm — B125-class gully gratings with frame are appropriate for pedestrianised street furniture zones, residential estate roads, and amenity areas where light vehicle access only is anticipated.
The material choice is the single most important decision in any long-life drainage project. Here's why MIDAS specifies ductile iron (spheroidal graphite iron) as the default for our gully grating with frame:
| Property | Ductile Iron (GGG500-7) | Grey Cast Iron |
|---|---|---|
| Tensile Strength | ≥ 500 MPa | ~150–250 MPa |
| Elongation at Break | ≥ 7% | < 1% (brittle) |
| Impact Resistance | High — absorbs vehicle shock | Low — prone to sudden fracture |
| Service Life | 30–50 years in municipal use | 10–20 years |
| EN124 Max Class | F900 achievable | D400 typically ceiling |
Unlike grey iron which fractures without warning under repeated heavy vehicle loading, ductile iron redistributes stress through micro-deformation — a critical safety advantage for gratings installed in trafficked carriageways.
Every ductile iron gully grating with frame leaving the MIDAS foundry is produced and verified under a formal quality management framework:
ISO 9001:2015 — Certified quality management system covering design, production, inspection, and delivery
EN 124-2:2015 Compliance — Full conformity with the European product standard for manhole tops and gully tops for vehicular and pedestrian areas
Third-Party Inspection — BV, SGS, and TÜV inspection arrangements available on request for project-specific supply contracts
Material Certification — Mill certificates for GGG 500-7 ductile iron available with each shipment
Shanxi Midas Industrial Co., Ltd. is headquartered in Taiyuan, Shanxi Province — China's historic heartland of iron and steel production. Our foundry operates with direct access to premium raw materials, a fully vertically integrated casting and finishing process, and a technical team with over 15 years of municipal infrastructure export experience.
We supply ductile iron gully gratings with frame and the full range of associated drainage and pipeline products — manhole covers, ductile iron pipes and fittings, valves, fire hydrants — enabling procurement teams to consolidate multiple product lines under a single, audited supply chain partner.
Whether you are sourcing for a municipal road project in Western Europe, a residential development in the Middle East, or an industrial facility in Southeast Asia, MIDAS has the certifications, production capacity, and logistics capability to deliver on specification, on time.
Contact our technical sales team today to receive product specifications, load class datasheets, and a project-specific quotation.
Product Dimensions
| Product Name | Gully Grating With Frame |
| Material | Ductile Iron GGG500-7 / 450-10 |
| Color | Black, as your request |
| Class | A15, B125, C250, D400, E600, F900 |
| Standard | EN124 |
| Shape | Round type |
| Design | a) Major standards designs available |
| b) As per customers' drawings or samples | |
| Process | a) Molding boards |
| b) Mechanical production line | |
| Coating | a) Cold applied black bitumen |
| b) Without coating | |
| c) Coating as per customers' requirement | |
| Package | Wooden pallets or steel pallets or As per customers' requirements |
| Inspection | Foundry in-house: Third party inspection available upon request |
| Application | Urban drainage system,Municipal Engineering |
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