HVAC structures for trains Stadler FLIRT: new welding processes in large frames


To produce a new structure for train HVAC systems which, due to its large dimensions and other special characteristics, requires new processes and skills, namely the EN 15085-certified welding of higher diameter points, the combination of more complex thicknesses and a higher requirement in the positioning of parts.



Adaptive assembly lines

Another project that demonstrates the ability of MCG transportation to transform the layouts of assembly lines, in this case doubling up to the capacity of the same taking into account the large dimensions of the structures produced (more than three meters).


New welding requirements

As a specialist in welding with EN 15085 certification, MCG transportation can optimize production processes. In this case, the need to perform welding points of superior diameter and the combination of thicknesses that require the acquisition of new equipment. 


Assembly requirements

This is a slightly different concept when compared to other HVAC structures produced by MCG transportation, so the new processes are defined according to the positioning points and the assembly complexity.


Quality above average

In addition to the ability to optimize new processes and equipment, MCG transportation invests in the training of its specialized employees, ensuring a robust process and a high-quality level.


Work with the customer

The development and production according to the requirements of the client and in constant communication is a key factor to guarantee the competitiveness of the projects. A high speed of response and proactivity in the integration of customer requirements.


 Experience on the FLIRT platform

With constant modifications, optimizations and improvements applied to the production processes of this type of structures for HVAC systems, MCG transportation gains advantage as a specialized production unit in FLIRT trains platforms.



After validation of a prototype unit by the customer in December, the development of a new structure for HVAC systems for trains reinforces MCG transportation as a specialist in welding processes with EN 15085 certification. And demonstrates the ability to adapt and reduce the response time of the division of MCG that is dedicated to the production of interiors for trains and buses.


The project involves the production of a new housing for an HVAC system for the manufacturer Merak and intended for installation on the platforms of FLIRT trains produced by Stadler Rail.


From the production point of view, this is a project of great demand in new processes and equipment, which MCG transportation responds with the optimization of the layout of the assembly lines. Special features of the structure – such as the total dimension of more than three meters, for example – also motivate the investment in new tools. The complexity of the assembly processes is another challenge.