Proven quality

WSK quality assurance

Wildauer Schmiede- und Kurbelwellentechnik GmbH (WSK) forged parts and crankshafts very often have to withstand decades of intense strain. Our quality assurance is correspondingly strict and comprehensive, from materials testing in our in-house laboratory to certification by renowned auditing institutions.

Quality management system

The quality assurance system of WSK is certified in accordance with DIN ISO 9001/EN 29001. Dedicated employees ensure that the consistently high quality of our products and processes are guaranteed - from purchasing to shipment. Click here to view and download our certificate.


In-house laboratory

In our in-house laboratory, our specially trained experts ensure optimal quality of materials in accordance with international standards. In addition to Strength and Charpy impact tests, hardness testing and chemical analyses, the properties of materials - such as the microstructure, intergranular corrosion and degree of purity - are also examined from a metallographic perspective.


Non-destructive testing

Non-destructing testing are essential for quality control and quality assurance. Specially trained employees at WSK conduct ultrasonic testing (UT), magnetic particle testing (MT), penetrant testing (PT) and visual testing (VT), which are certified in accordance with levels 1, 2 and 3 of DIN EN ISO 9712. For this testing we use the most precise technologies. Our magnetic particle testing facility is one of the largest in the world. It enables us to conduct a combined inspection (current linkage and field linkage) as a single process. Our ultrasonics allow us to investigate the tiniest of material defects (circular disc-shaped reflector measuring 0.3 mm or more). Click here to read more about the individual testing procedures in our datasheets.


Measuring technology

Experienced WSK employees not only visually inspect all products before they leave the plant. All products also undergo a dimensional check which is consistently monitored by accredited partners. 


Auditing institutions

At the customer's request  every product can be supplied with an inspection certificate in accordance with EN 10204. 

Our auditing institutions: 

  • American Bureau of Shipping (ABS)
  • Bureau Veritas (BV)
  • China Classification Society (PRC)
  • Deutsche Bahn AG (DB)
  • Det Norske Veritas – Germanischer Lloyd (DNV GL SE)
  • Lloyd’s Register Shipping (LRS)
  • Nippon Kaiji Kyokai (NKK)
  • Polish Register of Shipping (PRS)
  • Registro Italiano Navale (RINA)
  • Russian Maritime Register of Shipping
  • TÜV Technischer Überwachungsverein

Click here to see our auditing institutions.