German Rail Transporter Gains from Digital Wheelset Measurement

by Petra Göttfried on June 24, 2019 From Customer Voice, Industry Focus

Find out how German private rail transport company, Internationale Gesellschaft für Eisenbahnverkehr (IGE) has increased the accuracy, consistency and speed of its wheel profile measurements by adopting Hexagon Manufacturing Intelligence's NEXTSENSE CALIPRI tools.

IGE, which offers freight and passenger services across Europe, shares its story in the latest edition of Railway Gazette International. Ensuring wheelset safety is an essential part of IGE’s operations and its trained maintenance engineers carefully inspect the carriages of each train before departure, paying special attention to the level of wear on the wheels.

Prior to upgrading to CALIPRI Prime tools, IGE’s maintenance engineers had to reach under the train’s carriages and manually place a calliper on a wheel to measure the flange, which is the ridge that maintains the wheel’s position on a rail. The process could take between two and three hours, depending on the length of the train. Not only was the manual method time-consuming, it delivered inconsistent results, with time pressure and incorrect calliper handling contributing to errors.

In contrast, the CALIPRI Prime laser-based, hand-held, non-contact measuring device delivers results that are consistently accurate to within a few hundredths of a millimetre. Its patented algorithm corrects the tilting and twisting of the instrument to deliver the same measurement result for every engineer, delivering highly accurate flange measurements in a few seconds.

IGE’s staff have welcomed the new tool, which eliminates the need to climb under wagons for inspection work, and IGE now plans to equip all its vehicle inspectors with the CALIPRI Prime.

Read the full story in the Railway Gazette International.

Petra Göttfried

Petra Göttfried joined NEXTSENSE as a Marketing Manager in 2016. She previously held a range of marketing and sales positions in different industries and graduated from the University of Graz with bachelor's and master's degrees in Business Administration.

Profile and Surface Measurement

Offering dedicated non-contact systems for profile measurement and 3D surface inspection, Hexagon Manufacturing Intelligence’s profile and surface measurement range...


CALIPRI Prime is fully-integrated optical inspection system for the precise measurement of the key railway wheel flange dimensions (height, width, qR) within a few seconds.