Materfer CMM 400-2
| Company type | Diesel multiple unit |
|---|---|
| Industry | Rail transport |
| Headquarters | Córdoba Province , Argentina |
| Products | Diesel multiple units |
The CMM 400-2 is a diesel multiple unit crafted by Materfer in Córdoba Province, Argentina. Designed to operate on Argentina's three main track gauges, the standard gauge variants were initially introduced on the General Urquiza Railway routes within Entre Ríos Province.
Overview
These DMUs are compatible with track gauges of 1000mm, 1435mm, and 1676mm, effectively serving nearly the full extent of Argentina's railway system. While most parts are manufactured domestically, the braking systems come from German company Knorr Bremse, and the engines are supplied by Swedish manufacturer Scania. There are ongoing considerations to equip current and future models with more robust engines produced by Deutz AG.
Passenger comfort is enhanced through features such as air conditioning, pneumatic suspension, reclining seats, and LED illumination. Each carriage accommodates 70 passengers and is equipped with driver cabins at both ends of the trainset.
Usage
These units are deployed across various urban and regional rail services throughout Argentina. Their first deployment occurred on the Paraná to Concepción del Uruguay line of the General Urquiza Railway in Entre Ríos Province.
On the General Roca Railway, they operate inter-city services connecting Bragado, Realicó, and General Pico in the provinces of Buenos Aires and La Pampa.
The CMM 400-2 sets that served the diesel branch between Victoria and Capilla del Señor on the Mitre Line experienced mechanical issues attributed to deteriorated track conditions. As a result, these units were reassigned to the Tren del Valle, which has emerged as one of Argentina’s most prominent rail services since its inauguration in 2015.
In 2015, narrow gauge versions were introduced in Chaco Province to run on a completely renovated section of the General Belgrano Railway, supporting both freight and passenger transport. These narrow gauge units display a slightly altered exterior design compared to their standard and broad gauge counterparts used elsewhere.
See also
- Materfer
- Emepa Alerce – another DMU constructed in Argentina