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Components

Motors: Enhanced performance for all rolling stock

Coradia Polyvalent Engine, Ornans, France © Alstom/ ABACA – C. Guibbaud

Motors at a glance

  • Solutions for all railway rolling stock
  • Leader in permanent magnet motors (~3,500 motors in operation)
  • Best-in-class expertise
  • A local presence worldwide (4 sites for motors)

Alstom offers an extensive range of motors to suit all types of rolling stock and their different operating and integration requirements.

A wide range for all needs

Capitalising on its extensive expertise and return on experience in all forms of rail transport, Alstom offers its customers a wide series of optimised solutions: asynchronous or synchronous (permanent magnet technology), closed or open motors, different cooling and ventilation options, together with winterisation  and tropicalisation if required. Alstom’s motors can be fitted to non-Alstom rolling stock, while our experts always guarantee the optimal integration of motors in the bogie and the traction chain.

Winding of a motor, Xayeeco, China © Alstom / M. Hui

Leading the way in PMM technology

Alstom is an acknowledged forerunner in permanent magnet motor (PMM) technology, a high-performance and economical innovation already adopted by regional trains, tram trains, trams and automatic metros, as well as high speed trains. The advantages of a synchronous PMM stem from its lighter weight and compactness compared to asynchronous motors, which, together with a higher power-to-weight ratio, provide vehicles with higher performances for reduced operating costs. Maintenance requirements are also reduced thanks to the PMM working as a closed motor, removing the need for a fan and preventing the effects of externalities such as pollution, dirt and extreme weather.

Innovation and proximity

For nearly a century, our expertise in motors has been deployed in our expertise centre in Ornans, France, guaranteeing the validity of our latest cutting edge innovation. In addition to this facility, the Hornell and Xian plants in the USA and China respectively, offer local proximity to our clients to guarantee the best solutions to their requirements. We also offer a range of customised services to maintain and repair rolling stock and subsystems throughout their lifecycle, giving our customers peace of mind and their passengers improved availability.

  • 6,000
    motors manufactured every year
  • 15%
    energy savings with permanent magnet motor at train level
  • 30%
    lighter: the weight of PMMs compared to asynchronous motors