Product Overview
The 600×450 SMC composite square manhole cover complies with EN124 standards and is manufactured from fiberglass reinforced SMC material. Its reinforced structure provides excellent durability, corrosion resistance, and long-term outdoor reliability. The design is suitable for pedestrian zones, sidewalks, parks, and light-to-medium vehicle areas.
Product Drawing

Key Features
- Fiberglass reinforced SMC material – provides corrosion resistance, long-term durability, and no recycling value
- Slip-resistant surface – textured surface enhances grip for pedestrian and vehicle areas
- Lightweight construction – reduces handling and simplifies installation compared with traditional cast iron covers
- Suitable for multiple load classes – available in A15, B125, C250, and D400
Specifications & Dimensions
| Load Class | Clear Opening | Cover Size | Frame Size | Overall Height | Cover Thickness | Weight |
|---|---|---|---|---|---|---|
| A15 | 600x450mm | 650x500mm | 725x575mm | 40mm | 26mm | 16kg |
| B125 | 600x450mm | 650x500mm | 725x575mm | 40mm | 26mm | 21kg |
| C250 | 600x450mm | 655x505mm | 760x610mm | 100mm | 50mm | 45kg |
| D400 | 600x450mm | 655x505mm | 760x610mm | 100mm | 50mm | 47kg |
Technical Specifications:
- Material: SMC Composite
- Clear Opening: 600 × 450 mm
- Load Class: A15 / B125 / C250 / D400
- Standard: EN124
- Shape: Square
- Locking System: Two Screw Locks
Applications
A15:
- Parks
- Pedestrian walkways
- Bicycle paths
B125:
- Residential sidewalks
- Footpaths
- Light pedestrian areas
C250:
- Kerbside installations
- Residential streets
- Light vehicle access zones
D400:
- Urban roads
- Commercial parking lots
- Vehicle traffic lanes
- Municipal infrastructure areas
FAQ
Is the 600x450mm size suitable for D400 load class?
Yes, the 600x450mm SMC manhole cover is available up to D400 for urban road applications.
Can you provide OEM / ODM service?
Yes. OEM and ODM services 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.

















