Heavy Duty D400 FRP Composite Manhole Grate Access Cover for Corrosion Resistant Road Applications
Heavy Duty SMC Manhole Grate D400 FRP Composite Access Cover for Roads and Heavy Traffic Areas
Elite heavy-duty SMC manhole cover is developed for applications exposed to demanding vehicle loads and challenging outdoor conditions. The product uses reinforced fiberglass and high-performance SMC resin to create a rigid composite structure through compression molding.
The D400 configuration is designed for heavy traffic environments, while lighter load classifications are also available for other installation conditions. In addition to mechanical strength, the composite material provides corrosion protection and reduces the risk of theft compared with conventional metal products.
Its lightweight characteristics can also improve handling efficiency during installation and maintenance, making it a practical solution for large-scale infrastructure projects.
Key Features
Heavy Traffic Application
The D400 version is designed for demanding road environments where access covers are exposed to frequent vehicle loading.
Reinforced Composite Construction
Fiberglass reinforcement improves structural stability and helps distribute external loads through the molded composite body.
Corrosion-Free Alternative
The SMC material does not rust like conventional iron and is suitable for wet, humid and outdoor environments.
Reduced Theft Risk
The non-metallic structure provides an effective alternative where cast iron covers are vulnerable to theft
Lower Handling Burden
Compared with traditional heavy metal covers, the composite construction can simplify lifting, transportation and installation.
Weather Resistance
The material is suitable for outdoor infrastructure and can withstand normal exposure to moisture, temperature variation and environmental conditions.
Technical Specifications
| Item | Details |
|---|---|
| Product Name | Heavy Duty SMC Manhole Grate |
| Material | FRP / SMC |
| Reinforcement | Fiberglass |
| Heavy-Duty Grade | D400 |
| Other Grades | A15 / B125 / C250 |
| Standard | EN124 |
| Shape | Square / Round |
| Surface | Anti-Slip |
| Locking Device | Optional |
| Sealing Ring | Optional |
| Custom Size | Available |
Applications
- Heavy traffic roads
- Urban carriageways
- Industrial parks
- Logistics areas
- Municipal drainage systems
- Wastewater infrastructure
- Utility access points
OEM Manufacturing
Elite supports custom production based on engineering drawings and application requirements. Customers can specify dimensions, load rating, cover structure, logo, surface pattern, locking solution and frame configuration.
Testing & Quality Control
We apply quality control throughout raw material preparation, molding, dimensional inspection and finished-product testing. Load testing and relevant technical documentation can be arranged according to project requirements.
Contact Elite for a D400 SMC composite manhole cover quotation and project consultation.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.