QASS is a medium-sized enterprise located in the city of Wetter (Ruhr) in Germany. If it comes to bending and straightening of gear shafts, QASS is world market leader. The measurement computers of QASS render it possible to evaluate many production processes, to detect cracks in the very moment they occur and to check if production parameters stay inside tolerance thresholds:
• crack detection
• raise life time of tools
• Tool monitoring
• Process optimization
QASS stands for “Quality – Automation – Systems – Software”. QASS measurement technology works by High-Frequency-Impulse-Measurement (HFIM), which bases upon structure borne noise analysis. Destruction-free, 100%-in-process, fully automated.
HFIM allows to qualify many production parameters in multiple processes – for example during bending and straightening, joining, cold forming, inductive hardening and welding. Today, roundabout 50 people work for QASS. Retailing and service partners work in China, South Korea, Japan, Mexico, North- and South America. The company was founded in 2001 by it’s CEO, Ulrich Seuthe. 
QASS measurement technology is based upon High-Frequency-Impulse-Measurement (HFIM). It detects changes in the structure of work-pieces and tools that originate during production processes, for example during bending and straightening, joining, cold forming, welding and many more. Destructionfree, automated and 100%-in-process. QASS renders many downstream quality assurance procedures superfl uous, especially for bending and straightening. 
Background: During production processes, acoustic emission (structure borne noise) emerges from work-piece, tool and machine. Optimizer4D detects these impulses and displays them by realtime-frequency-analysis. Vibrations up to 25MHz and simultaneous detection of very short incidents (< 100-s) break down the processes. This is High-Speed Process Monitoring by QASS.
Reference Customers (excerpt): BMW, Bosch, Caterpillar, Daimler, Ford, Fiat, Galdabini, Hyundai, John Deere, Kokusai, MAE, MAN, Renault, Skoda, Volkswagen, Volvo, ZF.

Ulrich Seuthe
+49 2335 80 20 0
Find us at FO 28

Product and Service Categories

  • NDT Services
    • Acoustic Emission Testing (AE)


Steffi Dehlau
German Society for Non-Destructive Testing (DGZfP)
Max-Planck-Str. 6
12489 Berlin Germany
Tel: +49 30 67807-120

WCNDT 2016

The 19th World Conference on Non-Destructive Testing from 13-17 June 2016 in Munich, Germany is the most important event in our global NDT community.

You are cordially invited.