D400 Heavy-Duty Composite Sewer Cover for Driveways
- Specification: Φ665mm
- Material: SMC /BMC
- Color: Black, Grey, Green, Blue, or Customized
- Application: Municipal Roads,Residential Areas
- Standard:En124-1:2015
Product Inquiry
Please fill out the form below and we will get back to you as soon as possible.
- Description

The BAOGAI Advantage: Corporate Trust & Precision Tooling
In residential and commercial paving, the “details” define the quality. BAOGAI provides the structural certainty of a market leader.
- The Industry’s Only Publicly Listed Company: BAOGAI is the sole publicly listed corporation in China’s composite manhole cover sector. For our international partners, this means absolute financial transparency, audited quality control, and the long-term reliability required for major residential developments. We are a partner that stands by its warranty.
- Direct In-house Mold Factory: A perfect manhole cover fit requires high-precision tooling to prevent “rocking” or “tilting” when vehicles pass over. Because we operate our own mold factory, we ensure a high-precision fit. This also allows us to offer Elite OEM Customization—integrating your logo or specific utility text (e.g., “SEWER”, “WATER”) into the mold with speed and direct-factory pricing.
Product Overview
The Φ665mm D400 Composite Sewer Lid is engineered for the most demanding environments. With a 70mm reinforced frame, this cover is designed to withstand a test load of 400kN (40 Tons), making it suitable for city main roads, highways, and industrial loading zones. Utilizing high-density Bulk Molding Compound (BMC) and a specialized internal reinforcement structure, it offers a high-strength, rust-proof, and anti-theft alternative to traditional ductile iron covers.
Technical Specifications
MAIN PARAMETER
|
Feature |
Details |
|
Product Model |
BG-R665-D400 |
|
Material |
Fiber Reinforced Polymer (Fiberglass) |
|
Load Class |
D400 |
|
Standard |
BS EN124 |
|
Clear Opening (Φ) |
600 mm |
|
Frame Height (H) |
70 mm |
|
Outer Dimension |
665 mm |
|
Surface Design |
Anti-slip Surface Pattern |
|
Handle |
Without |
|
Color |
Black, Grey, Green, Yellow or Customized |
Why BAOGAI D400 BMC Covers?
- Heavy-Traffic Endurance: Specifically designed for main carriageways. The 70mm profile ensures deep anchorage in concrete or asphalt, preventing frame movement under high-speed traffic.
- Ultimate Safety (Anti-Slip): Features a deep, aggressive surface pattern that maintains high friction even in wet or oily conditions, ensuring safety for tires and pedestrians.
- Anti-Theft by Design: Being a composite material with no resale value, it eliminates the “missing cover” hazard on highways, reducing municipal liability and replacement costs.
- Fatigue & Impact Resistance: Our BMC formula is enhanced with long-fiber reinforcements to absorb the constant impact of heavy axles without cracking or deforming.
- Quiet & Smooth: Unlike rattling iron covers, the BMC composite material naturally dampens vibration, providing a quieter environment for roadside residents.

Target Applications
- Main Roads & Highways: High-speed vehicular traffic areas.
- Industrial Estates: Zones with frequent truck and forklift movements.
- Gas Stations & Logistics Hubs: Areas requiring spark-proof and heavy-load capacity.
- Urban Infrastructure: Main sewer and drainage networks under heavy traffic.
Engineering Excellence
- Certified Quality: Manufactured under ISO9001, CE, and SGS Certification standards.
- EN124 Certified: Our D400 covers strictly follow the EN124 European standard for load-bearing and safety.
- Aging Resistance: Tested for long-term exposure to UV radiation and extreme temperature cycles (-40°C to +90°C).
FAQ
- Q: Is BMC strong enough for D400 compared to SMC?
- A: Yes, our reinforced BMC D400 is engineered with a specific internal rib structure and high-pressure molding to meet the 400kN requirement while offering a cost-advantaged solution.
- Q: Can we customize the surface pattern for our city?
- A: Absolutely. We can incorporate city emblems, utility logos (e.g., “Sewerage”, “Storm Water”), and specific contact information on the cover.
Call to Action
Upgrade Your Driveway Project with the Industry Leader.
Experience the precision of BAOGAI composite solutions for your next development.
[Request a Bulk Quote & Technical Drawing]
[Inquire About Custom OEM Branding]