Heavy-duty frame, class D400, for well SKR-1

Heavy Frame for SKR Cable Manhole – Class D400

The heavy frame for SKR cable manholes in class D400 is a durable structural component designed for use in areas with high traffic intensity and significant dynamic loads. Thanks to its solid construction, it provides stable support for manhole covers and effectively protects underground infrastructure from external factors.

The frame is made of high-quality steel and filled with reinforced concrete, ensuring resistance to pressure, corrosion, and varying weather conditions.

Applications

D400 class frames are designed to withstand extreme loads of up to 40 tonnes, making them suitable for the most demanding locations, such as:

• High-traffic roads – main urban arteries and national roads.

• Motorways and express routes – areas with heavy truck and passenger vehicle traffic.

• Maneuvering and logistics yards – industrial areas and unloading zones for heavy vehicles.

• Fuel stations and transport hubs – areas frequented by trucks and delivery vehicles.

• Container terminals and ports – locations requiring maximum structural strength.

Construction and Installation

• High strength – thanks to D400-grade concrete, the frame withstands substantial dynamic loads.

• Reinforced steel structure – ensures durability and resistance to cracking and deformation.

• Precise fit for covers – minimizes shifting risk and ensures construction tightness.

• Easy installation – set in place on a concrete mortar bed for stability and long service life.
  
  

Load Classes and Applications

Frames are available in different strength classes that define their maximum permissible loads, in compliance with European standard PN-EN 124-4:2015-07:

• A15 (1.5 tonnes) – for light-load areas such as sidewalks, cycle paths, green zones, and places with limited vehicle access.

• B125 (12.5 tonnes) – for medium traffic areas such as car parks, road shoulders, and small residential streets.

• C250 (25 tonnes) – for higher traffic areas such as city roads, delivery zones, and areas with light trucks.

• D400 (40 tonnes) – for very high traffic areas such as motorways, maneuvering yards, and heavy vehicle routes.

Standards and Certification

The frame meets the stringent requirements of PN-EN 124-4:2015-07, confirming its high quality and resistance to intensive use.

Thanks to its solid construction and compliance with the highest durability standards, the SKR Class D400 frame is a reliable solution for road infrastructure, ensuring maximum durability and safety.