Grinding and Ultrasonics


Since its inception in 2001, NRL has been renowned for a consistent delivery of safe and professional Grinding and Ultrasonics services. We possess an in-depth knowledge of railway engineering to provide you with the expertise you need.

About our Grinding services

Our grinding discipline operates through providing teams to meet the requirements of track maintenance projects nationwide. Since the discipline’s inception in 2002 it has experienced continuous growth. We now supply to both Network Rail infrastructure and London Underground.

NRL’s effective plain line grinding service helps us meet our track maintenance requirements. Stacy, London Underground

Our service consists of fully competent, health, safety and environmentally compliant teams that provide expertise and solutions, optimise track performance, cost and extend asset life, both plain line and S&C. Additionally, to provide a bespoke service our teams hold the competency to undertake both pre and post grind inspections to provide the following:

  • Confirmation of track integrity
  • Review of track condition and trends
  • Review work quality
  • Review proposal for track renewals or refurbishment work and advise clients
  • Review dynamic movement of the track

Our management team ensure accurate planning of works, work site manpower and materials. We provide our teams with all equipment required to undertake works, removing the risk from our client. NRL’s in-house compliance team ensure all equipment is compliant.


  • Planning of works
  • Grinding operatives
  • Grinding Supervisory Managers (GSMs)
  • Pre and post weld inspections
  • Rolling Contact Fatigue (RCF) removal
  • Rail roughness testing

About our Ultrasonic Testing services

NRL’s ultrasonic testing discipline is our longest running service to the rail industry. Our service includes the safety critical testing of the rail by our fully competent Ultrasonic Rail Flaw Detection Operatives (URFDO) who examine the rails and locate defects through the use of testing techniques.

URFDO inspections identify

  • Rail head damage
  • Vertical Longitudinal Splitting (VLS)
  • Significant rail corrosion
  • Lipping on rail adjustment switches
  • Areas of rolling contact fatigue (RCF)

Our standards and compliance team provide URFDO’s with the relevant minimum action codes (MAC) to ensure the correct course of action is applied, dependent upon the type of defect identified.

To discuss your rail requirements or for further information please contact our team at the Grangemouth office on +44 (1324) 625 231.