Sub Frame
The cabin is securely attached to the intermediate frame, which has been successfully tested in Rally-Sport and off-road environments. The intermediate sub frame serves as a crucial component by protecting both the truck frame and the rigid cabin case, while absorbing the immense torsional forces that naturally occur when navigating challenging off-road terrains.
Additionally, the intermediate frame decouples the cabin from the vehicle chassis during diagonal twisting. Depending on the weight class and the specific load capacity requirements for the vehicle with the cabin, we offer two main variants of the connection between the chassis and the cabin.
In addition to the traditional spring bearings, other options for constructing the intermediate frame are available, including diamond bearings and 3-point or 4-point bearings.
Over the years, we’ve accumulated extensive experience while traveling and exploring demanding terrains. Classic spring mounting has proven to meet all durability and torsional flexibility requirements.
The selection of structural steel is tailored to your intended use. It’s crucial to choose steel with the appropriate hardness to avoid cracking under heavy loads.
Our Auxiliary Frames are built to Mercedes-Benz specifications and adhere to the standards set by German regulatory agencies, TÜV and Dekra. This ensures the highest level of safety and compliance for off-road expedition vehicles.

