Product Overview
Manufactured from fiberglass reinforced SMC composite material, this square manhole cover combines high strength with excellent electrical insulation properties. The non-metallic construction is anti-static, corrosion resistant and has no recycling value, making it a reliable alternative to traditional cast iron covers.
Product Drawing

Key Features
- High strength composite construction – designed to provide reliable load-bearing performance across multiple EN124 load classes
- Anti-static material – the non-metallic structure helps reduce static electricity accumulation
- No recycling value – helps reduce theft-related issues compared with cast iron covers
- Corrosion resistant – suitable for long-term outdoor use without rusting
Specifications & Dimensions
| Load Class | Clear Opening | Cover Size | Frame Size | Overall Height | Cover Thickness | Weight |
|---|---|---|---|---|---|---|
| A15 | 550x550mm | 600x600mm | 673x673mm | 35mm | 25mm | 11kg |
| B125 | 550x550mm | 600x600mm | 673x673mm | 35mm | 25mm | 21kg |
| C250 | 550x550mm | 600x600mm | 705x705mm | 75mm | 50mm | 43kg |
| D400 | 550x550mm | 600x600mm | 705x705mm | 100mm | 50mm | 53kg |
Technical Specifications:
- Material: SMC Composite
- Clear Opening: 550 × 550 mm
- Load Class: A15 / B125 / C250 / D400
- Standard: EN124
- Shape: Square
- Locking System: Two Screw Locks
Applications
A15:
- Parks
- Green spaces
- Pedestrian walkways
- Bicycle paths
B125:
- Sidewalks
- Residential parking areas
- Pedestrian zones
C250:
- Kerbside installations
- Residential streets
- Light vehicle access areas
D400:
- Urban roads
- Commercial parking lots
- Vehicle traffic lanes
- Municipal road infrastructure
FAQ
Is the 550x550mm cover anti-static?
Yes, the SMC composite material provides anti-static properties, making it suitable for electrical and telecommunications 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.














