Innovative transport solution: Schmitz Cargobull's Ecoduo reduces emissions and increases efficiency

Schmitz Cargobull has simply thought further and given the idea of the long truck a new twist. To remain flexible in use, the manufacturer from Münsterland deliberately relies on the current standards in the transport industry with the Ecoduo concept – especially in combined transport.

Connecting two trailers with a dolly – the train is ready

In the process, two standard semi-trailers connected via a dolly are simply coupled and attached to a tractor unit. In this way, Schmitz Cargobull aims to relieve the existing infrastructure and reduce CO₂ emissions. At the same time, the use should remain as simple and flexible as possible. Ideally, the combination should be used in long-distance transport, it is said.

Two trailers, one tractor unit: This is how Schmitz Cargobull aims to ensure efficiency. | Image: Schmitz Cargobull

The Ecoduo is designed so that the total train weight of the tractor unit and the first trailer remains at 40 tons. The train weight of the second trailer, attached behind, can vary. According to the regulations of Scandinavia, where this combination is already licensed, up to 36 tons are permitted.

According to Schmitz Cargobull, the vehicle combination is currently being tested in Spain with a train weight of 40 tons on the first trailer and 30 tons on the second trailer. For the flexible concept, which primarily relies on standard vehicles, the manufacturer from Vreden presents several arguments. Conventional long-truck concepts entail that load carriers of different lengths are used. These are not flexibly combinable and therefore require additional investments in fleets. Furthermore, the combinations are not permitted everywhere.

Different national regulations complicate continuous, cross-border transport. In contrast, the Ecoduo vehicle combination can, for example, be easily split into two tractor units at national borders or in defined zones.

More saves more: Emissions, traffic load, drivers

The advantages of the long truck remain with the Ecoduo combination. Due to the additional weight of the trailer combination, even more benefits would be compared to conventional semi-trailers with a total weight of 40 tons. This results in reduced CO₂ emissions per ton transported. Additionally, according to Schmitz Cargobull, the axle loads are lower, which in turn relieves wear on roads and bridges. The capacities of the roads could also be better utilized. Because fewer vehicles would be needed for the same amount of goods, traffic volume would decrease.

And finally, Schmitz Cargobull also argues with the driver shortage: only one driver would be needed for two trailers on long hauls. Andreas Schmitz, CEO of Schmitz Cargobull AG, is convinced of the new concept:

“Currently, this vehicle combination is only valid in Scandinavia and Spain. In the long term, we see the Ecoduo as an ecologically and economically efficient transport solution across Europe.”

No need for additional equipment investments

He emphasizes that, unlike previous long truck concepts, the existing semi-trailer truck fleets can continue to be used. By using two standard trailers, the existing dimensions in the transport industry remain the same. Additional investments in vehicles outside the current standard trailers would be unnecessary.

The concept would furthermore be truly modular. All existing infrastructure can continue to be used without costly investments. Even the rail loadability of the trailers would still be ensured. The loading and unloading processes would also remain unchanged with the Ecoduo. With modern vehicles that are technologically up-to-date in terms of, for example, axle and brake systems, the Ecoduo meets all safety standards, assures Schmitz Cargobull.

The manufacturer is therefore confident that the concept could be implemented without additional danger to road traffic – safety distances and warning signs would continue to allow safe overtaking maneuvers by cars. Moreover, the Ecoduo is suitable for future technologies such as platooning and automated driving.