4 May 2026

SUMAX Innovation: Railway Safety and Performance

SUMAX: Innovation at the Service of Railway Safety and Performance

Railway safety, maintenance cost control and rolling stock availability are major challenges, driving the evolution of inspection methods.
Are you looking for reliable, fast and traceable solutions that can be effectively integrated into industrial constraints?
This is the rationale behind Eurailtest’s SUMAX, an innovative Non-Destructive Testing (NDT) solution specifically designed for axle inspection.


The Limits of Traditional Inspection Methods

Axles are subject to rigorous monitoring within railway maintenance to prevent any failure. These inspections rely on processes that are costly, cumbersome, slow, complex and physically demanding for operators, due to their reliance on single-element ultrasonic techniques. These well-established methods are now showing their limits in the face of ever-increasing demands for productivity, traceability and safety


A New Approach to Axle Inspection

SUMAX (Multielement Ultrasonic AXle Scanner) relies on phased array ultrasonic technology to assess material integrity without altering it. This non-destructive approach enables precise and rapid inspection of components, without time-consuming disassembly. Thanks to its versatile design, between one and five operations are sufficient for SUMAX to fully inspect an axle, revealing all defects invisible to the naked eye. The result: processing times reduced by 40 to 70%, increased productivity that significantly lowers maintenance costs.


A Solution Designed for Operators and Industry Professionals

SUMAX has been designed to meet field realities and the expectations of railway operators.

Optimised Ergonomics

  • Mobile workbench facilitating on-site operations
  • Clear and intuitive user interface
  • Quick training: just 3 days are sufficient for effective onboarding

Comprehensive and Actionable Visualisations

SUMAX provides S-scan and TOPVIEW visualisations, offering precise and structured result readouts. This wealth of information improves inspection traceability and facilitates data analysis over time.

Enhanced Reliability and Safety

The precision of defect detection improves inspection reliability and directly contributes to strengthening railway safety. Operators work with a simplified process, while maintaining a high level of technical standards.


A High-Performance and Responsible Technology

SUMAX is also part of a more environmentally responsible approach. By using a water-based scanning system combined with anti-corrosion additives within a closed circuit, it limits the use of chemicals and their associated residues. This approach makes it possible to combine industrial performance with environmental responsibility — an essential consideration in modern maintenance strategies.


Why Choose SUMAX with Eurailtest?

By choosing SUMAX, you benefit not only from innovative technology, but also from Eurailtest’s expertise, recognised for:

  • Over 80 years of cumulative experience in railway testing and inspection
  • Independence and confidentiality
  • Compliance with standards and regulations
  • Adaptability and on-site mobility

We support you at every step, from analysing your needs to the operational implementation of the solution.


Optimise Your Axle Inspection Today

Would you like to reduce downtime and optimise your maintenance costs without compromising on reliability?

SUMAX is the ideal solution.

Need expert advice?
Don’t hesitate — contact our business engineers today.