Product Overview
The 750×450 SMC drainage grate and frame is designed for municipal drainage systems, road drainage applications, and underground infrastructure projects.
Manufactured from high-strength SMC composite material, the product provides excellent corrosion resistance, anti-static properties, and stable long-term performance in outdoor environments.
Available in EN124 B125, C250, and D400 load classes for different traffic conditions.
Key Features
- EN124 B125, C250 & D400 load rating
- High-strength SMC composite material
- Corrosion and chemical resistant
- Anti-static and flame-retardant
- Non-metal anti-theft design
- Suitable for road drainage systems
- Lightweight and easy installation
- Long service life with low maintenance
Specifications & Dimensions
| Load Class | Clear Opening(mm) | Cover Size(mm) | Frame Size(mm) | Height(mm) | Weight(kg) |
|---|---|---|---|---|---|
| B125 | 690×400 | 750×450 | 830×530 | 80 | 27 |
| C250 | 690×400 | 750×450 | 830×530 | 80 | 32 |
| D400 | 690×400 | 750×450 | 830×530 | 80 | 36 |
Applications
- Municipal drainage systems
- Road drainage systems
- Infrastructure projects
- Heavy traffic areas
- Parking areas
FAQ
Can you provide OEM / ODM service?
Yes. OEM and ODM service are available. Custom logo, color, surface pattern, and dimensions can be produced according to project requirements.
What is your delivery time?
Normally, the production lead time is about 15–25 days depending on order quantity and product specifications.
What is the MOQ?
MOQ depends on the product size and specifications. Please contact us for detailed information.
What packaging method do you use?
The products are normally packed on export pallets for safer transportation and easier loading and unloading.
Do you provide warranty and after-sales service?
Yes. We provide one-year warranty service and technical support for our products. Please contact us for detailed after-sales information and project assistance.
Does the cover have waterproof sealing structure?
Yes. The cover is equipped with a sealing structure designed to help prevent leakage and water ingress.
Is this product suitable for heavy traffic areas?
Yes. The D400 version is suitable for heavy-duty traffic environments according to EN124 standards.
Is the material resistant to fuel and chemicals?
Yes. SMC composite material provides excellent corrosion and chemical resistance for underground fuel system applications.
Does the product include the frame?
Yes. The product includes both the manhole cover and frame.

















