Proven Quality.


Almost 100 years of Wolters history confirms our quality. In addition to the strict selection of suitable manufacturers, our products are subject to constant expert control from goods receipt through to delivery. Qualified and skilled staff using the most modern testing and measuringdevices guarantee consistent and reliable quality.


Our laboratory capabilities...

  • Thread Friction testing bench (Test-950)
  • Clamping torque (e.g. according to ISO 2320 / DIN 267 part 15)
  • Material analysis (Belec Spectrum Analysis)
  • Proof load testing (e.g. according to DIN 267-4 / ISO 898 part 2)
  • Surface layer thickness: X-ray fluorescence and magnetic induction, (Fischer system)
  • Sorting machines (e.g. 100% control via image processing)
  • Angularity / Concentricity (Kordt system)
  • Expansion testing according to DIN 267 Part 21 or DIN EN ISO 10484
  • Profile image dimension measurement.
  • Surface roughness measurement

In the event that we are unable to meet a customer-specific test requirement in our own laboratory, we have long-standing partners who can assist us in finding a solution for even the most unusual test requirements.

TÜV Nord

TÜV tested quality

Upon request we can offer tests and approval with certificates from TÜV, GL, LR, DB. Other acceptance organizations are possible.
A selection of certificates can be downloaded here.

Our philosophy

Our philosophy

We place particular importance on the quality of our goods. In addition to our constantly updated test equipment, we also have appropriately trained staff to carry out the required tests in a qualified manner. The evaluation of test results is based on our many years of manufacturing experience. We analyze deviations and where necessary investigate them together with our supply partners looking at the potential for improvement.

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