Front Hatch Mechanisms:


  • Our experience has placed us leaders in Spain.
  • Our mechanisms are ideally suited to the requirements, customizing them to be installed in any type of headpiece.
  • Manual, pneumatic or electric operation.
  • Control system and remote control via infrared between trains.
  • Perform all necessary tests to validate its use.
  • Advice and support to the client in its implementation on the train.

Automation and Control Solutions:

  • Development and production of electronic control units (hardware and software of Control Box) and monitoring trains.
  • Control devices and communications subsystems.
  • Fully compatible with the specifications of the equipment supplier and manufacturer of the train.
  • Analysis of customer requirements comprehensively and objectively.
  • Implementation on new and refurbished equipment.
  • Developments in accordance with the standards EN 50125, EN 50128 and EN 50155.


  • Doors control
  • Troubleshooting
  • Diagnosis
  • Data Storage
  • heating, air conditioning and ventilation
  • Lavatories
  • Speed control
  • Lighting control
  • Communications
  • Brakes

CM4 has the experience and resources to develop any kind of solution related to the functionality of the railway applications (trains, subways, trams and infrastructure) at all stages of development, from the description of the technical specification of a component to the design and construction of the test benches for test and required training.

Front Hatch Mechanisms
Mechanical Devices
Tooling and Testing