Fiberglass Solid Access Cover with Anti-Slip Surface

The BAOGAI Trust Factor: Corporate Strength & Technical Precision

• China’s Only Listed Manufacturer: BAOGAI stands alone as the only publicly listed company in the composite manhole cover sector. This status ensures complete financial transparency, rigorous third-party audits, and a commitment to quality that protects your reputation. When safety is non-negotiable, choose a partner with the highest level of corporate accountability.
• Heavy-Duty SMC Molding Center: C250 rated covers demand exceptional structural integrity. Our advanced SMC press line features high-tonnage molding presses specifically calibrated for large-format, load-bearing components. This ensures our 700x700mm C250 series achieves uniform density, optimal fiber orientation, and zero internal voids—critical factors for withstanding repeated heavy traffic loads. Our “factory-direct” tooling enables rapid custom branding with significantly lower costs and faster delivery than typical trading partners.

Product Overview

The BAOGAI 700x700mm SMC Square Manhole Cover is a heavy-duty access solution rated C250 (EN124) for roadway applications. Constructed from high-performance Sheet Molding Compound, it withstands 25-tonne wheel loads from trucks and buses while weighing 70% lighter than cast iron. The large 700x700mm opening provides ample access for utility vaults and equipment chambers beneath public roads and industrial zones.

Technical Specifications

MAIN PARAMETER

Key Advantages

• Certified C250 Load: 250kN test load certified for heavy truck and bus traffic on public roadways.
• Silent “No-Clang” Performance: Thanks to our in-house precision molds, the cover-to-frame tolerance is minimal. This ensures a silent experience when cars drive over—making it the preferred choice for high-end residential estates and shopping plazas.
• Permanent Anti-Theft Protection: With zero scrap value, SMC covers eliminate the motive for theft. This protects your site from the liability of open pits and saves municipalities from the high cost of replacement.
• Aesthetic Square Profile: The 700 x 700 mm profile is designed to align perfectly with paving tiles, asphalt, or concrete, providing a professional and flush finish that enhances the visual quality of the project.
• Maintenance-Free Service: Never rusts, corrodes, or requires painting. Unaffected by road salts and de-icing chemicals.
• Large 700mm Access: Provides full personnel access to utility vaults and equipment chambers.

Target Applications

FAQ

Q1: Can a composite cover really handle C250 roadway traffic?

A: Absolutely. Our C250 SMC covers are specifically engineered with high glass content and structural rib reinforcement to meet the EN124 requirement of 250 kN (25 tonnes). They are independently tested and certified for roadway applications including heavy truck traffic. The misconception that “heavy = cast iron” is outdated—modern SMC composites actually outperform cast iron in strength-to-weight ratio and fatigue resistance.

Q2: How does the 700x700mm size perform under heavy traffic?

A: Large-format covers present unique engineering challenges, which is why our C250 series features a reinforced rib pattern specifically designed for 700x700mm openings. The load is efficiently transferred from the cover to the frame and then to the surrounding structure, ensuring long-term performance even under repeated heavy vehicle passes.

Q3: What about installation in roadways—does it need special equipment?

A: No special equipment needed. One person can handle the cover. The lightweight nature actually improves installation safety compared to 80kg+ cast iron covers that require lifting equipment and pose manual handling risks.

Q4: How does the cost compare to cast iron C250 covers?

A: While the unit price may be comparable, the total installed cost is significantly lower with SMC due to:

• Reduced transportation costs (70% lighter)
• One-person installation (lower labor cost)
• Zero maintenance (no painting, no corrosion repairs)
• No replacement costs due to theft

Call to Action

Upgrade Your Project with the Industry’s Most Trusted Manufacturer.

Leverage the precision of BAOGAI SMC solutions for your next development.

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