Long-Afterglow Highway Trench Plate

The BAOGAI Advantage: Corporate Trust & Safety Innovation

In tunnel engineering, there is no room for error. BAOGAI provides the certified reliability of a market leader.

• The Industry’s Only Publicly Listed Company:

As the sole publicly listed entity in China’s composite cover sector, BAOGAI offers unmatched accountability. For large-scale tunnel and subway projects, our listed status is a “seal of trust,” guaranteeing that every cover meets rigorous ISO safety audits and project delivery timelines.

• Direct In-house Mold & Tooling Factory:

Tunnel walkways require a perfectly flush fit to prevent trip hazards for maintenance crews. Because we operate our own mold factory, we better guarantee product quality and dimensional accuracy. This also allows us to offer Rapid OEM Customization—integrating specific safety markings or tactile textures with direct factory pricing.

Product Overview

The BAOGAI 700x500x40mm Long Afterglow Tunnel Cover is a revolutionary safety component for modern transportation infrastructure. Unlike standard covers, this product features our proprietary “Long Afterglow” Patent, which allows the cover to emit a steady luminescent glow in the event of a total tunnel power failure. This creates an intuitive, non-electrical evacuation path to guide passengers and personnel to safety.

Furthermore, with an Class A flame retardancy rating, these covers act as a critical barrier against fire spread within cable trenches. With a substantial 40 mm thickness, they provide the heavy-duty structural integrity needed for tunnel sidewalks and maintenance galleries, while remaining completely resistant to the humid, corrosive environments typical of underground transit.

Technical Specifications

MAIN PARAMETER

Core Benefits for Tunnel & Subway Projects

1. Passive Emergency Guidance (Patented): In a “blackout” scenario, our patented luminescent technology ensures that the evacuation route is visible without the need for electricity or batteries. This provides life-saving guidance for emergency exits.
2. Industry-Leading Fire Safety (A2 Rated): Tunnel fires are extremely hazardous. Our A2-rated material ensures the cover will not contribute to the fire load or release toxic black smoke, protecting both the tunnel structure and breathable air for evacuees.
3. Permanent Anti-Theft & Corrosion-Proof: Composite material has zero scrap value, eliminating the motive for theft in remote tunnel sections. It is also completely immune to moisture and salt-spray corrosion, which often causes traditional steel covers to rust and fail.
4. Silent & Precision Fit: Leveraging our in-house mold precision, the covers fit perfectly into the trench rebate. This prevents the “rattling” noise when maintenance vehicles pass over, ensuring the structural stability of the sidewalk.
5. Easy Maintenance & Lightweight: Significantly lighter than concrete or iron covers, allowing maintenance crews to lift and replace them manually without heavy machinery, reducing labor costs and tunnel downtime.

Target Applications

FAQ

Q1: Is the Class A fire rating certified by third parties?

A: Yes. As part of our commitment to transparency, we provide full testing reports from third-party laboratories to confirm our Class A flame-retardancy status.

Q2: Can we customize the surface with specific emergency icons?

A: Absolutely. Our in-house mold factory allows us to emboss “Emergency Exit” icons, directional arrows, or project logos directly into the cover for a permanent, high-visibility finish.

Call to Action

Modernize Your Tunnel Safety with Patented Innovation.

Partner with BAOGAI to bring listed-company reliability and life-saving technology to your infrastructure projects.