Round Welded Metal Drainage Grate
PRODUCT PARAMETERS
- Material: Alloy Steel, Stainless Steel, Composite
- Process: Laser Cutting & Robotic Welding
- Surface Treatment: Hot-Dip Galvanized
- Features: Corrosion Resistance, High Precision, Lightweight Design
- Advantages: Easy Installation and Operation
- Function: Rainwater Collection & Debris Interception
- Applications: Road Verges, Curbs, Ramps & Drainage Systems
- Customization: Material, Size & Surface Finish Available
Description
FAQs
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Description
Constructed from alloy steel, stainless steel or composite multi-material mixes, this product is integrally formed via laser cutting and robotic welding, with full hot-dip galvanization for anti-corrosion performance.
It delivers high machining precision and low dead weight, enabling effortless installation, opening and closing. Widely installed on road verges and ramps to collect surface rainwater and intercept debris to prevent pipeline clogging.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Code | HB [Load Class][L size]×[W size] |
| Length (L) | 400 / 450 / 500 / 550 / 600 / 650 / 700 / 750 mm |
| Width (W) | 300 / 350 / 400 / 450 mm |
| Load Classes | A (15KN) / B (125KN) / C (250KN) / D (400KN) / E (600KN) |
| Material | Carbon Steel / Stainless Steel 304 or 316 |
| Surface Treatment | Hot-Dip Galvanized (carbon steel); Untreated (stainless steel) |
| Shape | Rectangular (standard) / Round (available) |
| Lock / Hinge | Optional: with or without locking hinge mechanism |
| Standards | T/CASME 2152—2026 / GB/T 23858 |
| Custom Sizes | Available upon request |
Load Class Selection Guide
| Load Class | Test Load (KN) | Recommended Applications |
|---|---|---|
| A | 15 | Pedestrian paths, parks (no vehicle access) |
| B | 125 | Pedestrian roads with vehicle access, small car parks |
| C | 250 | Residential areas, alleys, light vehicle roads |
| D | 400 | Main roads, highways, expressways |
| E | 600 | Large freight terminals, airport outer areas |
Applicable Standards
| Standard | Description |
|---|---|
| T/CASME 2152—2026 | Metal Welded Inspection Manhole Covers (led by Daxing) |
| GB/T 23858 | Chinese National Standard for Inspection Chamber Covers |
| EN124:2015 | European Standard – Gully Tops and Manhole Tops |
| GB/T 700 | Carbon Structural Steel |
| GB/T 3280 / 4237 | Stainless Steel Cold/Hot Rolled Plates |
| GB/T 13912 | Hot-Dip Galvanized Coating Requirements |
| GB 50661 | Steel Structure Welding Code |
Request a Quote
For pricing, samples, or technical inquiries:
📧 ytdaxing@sina.com | 📱 WhatsApp: +86 13105352113
FAQs
What types of products can we offer?
We mainly offer steel grating, stair treads, trench covers, welded steel manhole covers, rainwater gratings, recessed manhole covers, and customized steel structure components.
Our products are widely used in petrochemical projects, nuclear power projects, municipal engineering, wastewater treatment plants, industrial platforms, residential areas, parks, ports, airports, and construction supporting facilities.
What logistics do we ship through?
For project orders, we provide integrated delivery support, including product coordination, packaging recommendations, loading arrangements, and shipment planning.
We can adjust the packaging method and delivery schedule according to different project requirements, and support batch delivery when needed. This helps customers reduce communication costs and keep project delivery more manageable.
Can it be customized as per our requirements?
We offer drawing customization, non-standard custom manufacturing and full supporting production for engineering projects.
Our technical team provides one-on-one technical communication. We adopt professional software for drawing deepening and arrange production strictly per your project demands. Customization is available on materials, surface finishes, load standards, dimensions and installation accessories.
What is our ordering process?
Our general ordering process is:
Requirement confirmation → Drawing/specification review → Technical communication → Quotation → Sample or drawing confirmation → Production → Quality inspection → Packaging → Delivery
For non-standard products, early communication and sample preparation usually take around one month. For regular production capacity, our steel grating output can reach about 100 tons per day, and our welded manhole cover output can reach about 1,000 sets per day.
What services are included in the after-sales service?
- 24/7 Service Hotline
- hour response for all inquiries and feedback
