Railway Technical Blog
In this space, we share our team’s experience with railway projects in Spain, Portugal, the Nordic countries, and Latin America. We explain the workings of catenary components, traction substations, signaling systems, and track infrastructure, adopting a practical approach designed for engineers, site managers, and maintenance supervisors.
Railway Cantilevers
Cantilevers in the Railway Industry: Function, Types and Applications In the railway industry, every component plays a key role in guaranteeing the safety and efficiency of the system. One of these essential elements is the cantilever, a key structure in the...
Railway Disconnectors
Disconnectors: Key to the Safety and Efficiency of Rail Transport In the world of rail transport, safety and efficiency are essential to guarantee that rail networks operate continuously and without interruptions. One of the key components in achieving these...
Dynamic Gauge
333. The term "dynamic clearance" refers to a crucial concept in engineering and transportation used to describe the vertical free space needed for a vehicle to safely pass through a given area, such as a bridge, tunnel, level crossing, or any other structure. This...
The Benefits of Trains in Transportation
The Benefits of Trains in Transportation Transportation is a vital component of modern life. Whether it's commuting to work, visiting family and friends, or transporting goods from one place to another, we need efficient and sustainable transportation systems to keep...
Overhead Line Crossings: Where the Catenary Meets a Turnout
On an electrified line, trains draw current through the pantograph, which runs against the contact wire of the overhead line along the whole route. Where the track is single and straight, that relationship is simple: one wire, one geometry and continuous contact. The...
Unimog u400 Bimodal
At Irecfer we care a lot about our rolling stock, since it is a material of a very important magnitude when carrying out the different works of railway installations. Technical Characteristics Unimog u400 BimodalMercedes Benz OM 906 LA Turbo Charger, EURO 4. Max road...






