For more than 30 years, Romax Technology has led the world in developing methods that consider system interactions within mechanical transmissions. Now Romax leads the world into electrification; we have applied and extended our state-of-the-art engineering approach to electric drive systems.

For the first time, the crucial interactions between the electric machine and the gearbox can be considered and analysed.

R&D Investment

(per year)

> £3.5M

Combined Years Industry Experience

> 200


> 10


> 100

Collaboration with the University of Sheffield since 2011

electro-mechanical drives

The resulting capability in electro-mechanical drives is as follows:


  • World leading simulation capabilities that accurately predict the interactions between the gearbox and machine, implemented in Romax software

  • A comprehensive design process for electric drivetrains, optimized for performance and cost, running from concept selection through to prototyping

  • Bespoke design, prototyping and testing of motors and gearboxes, delivered through our Design and Analysis service

  • Research and development further characterizing the behavior of motors and gearboxes and their interactions together

Watch our video on Electrical Machine Modelling; including a vibration analysis tool that interfaces directly with electromagnetic FEA.

This new software capability enables vibration analysis of a complete electro-mechanical drivetrain. It applies excitations from both gears (transmission error) and electrical machine (torque ripple, radial forces) and calculates the response of a full system model; including transmission, electrical machine and housing. Users are able to capture electro-mechanical dynamic interactions in the early development stages, resulting in holistically and efficiently optimised future products.

View or register for our Electrification webinars now...

Read in more detail about our electrification projects and capabilities in our


Download our Electrification case studies to hear more about our success in this sector





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