HERMEQ UK
HERMEQ Ireland
HERMEQ Netherlands
HERMEQ France
HERMEQ GermanyD400 Surface Box
Product Highlights
- Reinforced corners – Prevents edge fatigue and substrate damage
- Indexed cover – One-way fit for quick and secure installs
- PSRV-tested – Certified 70+ anti-slip surface for safety
Alternative Products
SKU TC597344
D400-rated surface box for U.S. roads and highways. Reinforced corners, 70+ PSRV anti-slip surface, and indexed cover design for fast installation. Long-lasting utility access solution for DOT-compliant projects.
HERMEQ’s D400 Surface Box is engineered for demanding U.S. infrastructure projects including highways, arterial roads, and commercial depots. Manufactured to meet international performance standards, this ductile iron surface box is ideal for repeated heavy traffic, including trucks and public transport vehicles.
The reinforced corners maximize load distribution to prevent cracking, edge failure, and substrate erosion—common problems with lower-grade covers. A built-in indexed cover simplifies installation, ensuring correct orientation every time to avoid rocking or misalignment. PSRV-tested to 70+ by an accredited lab, the surface offers superior traction for both vehicles and pedestrians, even in wet weather.
- D400 load rating – Withstands consistent HGV and commercial vehicle pressure
- Reinforced frame geometry – Distributes axle load and prevents stress fractures
- Anti-slip surface – 70+ PSRV rating tested by third-party lab
- Indexed fit – Prevents incorrect installation and reduces vibration wear
This surface box is suited for major U.S. roads, city infrastructure, industrial access points, and areas requiring frequent underground utility access without compromising surface durability.
HERMEQ supplies a complete line of Road Plates, Trench Covers, and Access Mats tested and trusted across U.S. road networks.
Need any help? Contact HERMEQ Today.
Contact our team via email sales@hermeq-usa.com or use our live chat feature between 8:00am & 17:00pm for help discovering our range.
- Applications: DOT roads, industrial routes, commercial depot entries
- Compliance: PSRV-tested, engineered to D400 specs
- Use Cases: Utility vaults, sewer covers, telecom access
Trusted by U.S. contractors, utility firms, and city engineers for long-term, compliant access infrastructure.
Is this suitable for U.S. highways?
Yes. It meets D400 performance standards and is built for continuous traffic exposure including HGVs and buses.
What is an indexed cover?
It means the cover fits in only one orientation, improving installation speed and preventing long-term seat wear.
What does PSRV 70+ mean?
This is a surface grip rating tested in wet and dry conditions to reduce skids and improve safety.
Can it replace a manhole cover?
Yes—it’s ideal for replacing worn or underspecified highway access covers.
