Our services

Our production is entirely based on customer requirements. Customised manufacturing for even the smallest quantities, careful designs and express deliveries are our strengths.

Our process

Quality without compromise     

  • All our articles are subject to the strictest inspection requirements – from raw material acceptance to dispatch.
  • Our raw material deliveries arrive with supplementary sheet or certificate and are assigned a material number on acceptance to ensure unambiguous identification.
  • The initial sample/production test is specified on our internal working papers, and must be declared executed with date and signature.
  • The inspection interval for the series is stipulated by the customer or Quality Management, and equally documented on the job card.
  • The final inspection is carried out either in accordance with the internal “Sampling plan for final inspection” based on AQL table 7.1 or as specified by the customer.
  • Upon customer request, the collected final inspection data is documented by means of electronic measuring tools and the “Sample analysis QS-STAT” (official automotive supplier programme) pursuant to EN 10204.2.1.

Each of these points guarantees full traceability of our products.


We are happy to advise you – in terms of design, material selection and your feasibility study. We carry out corresponding spring calculations and tests in accordance with your specifications, or produce articles based on your technical specifications, draft or sample.


We employ state-of-the-art production engineering to turn plain wire into bent wire parts. Primarily, we utilise he technology of the market leader Wafios AG with whom we enjoy a close and fair business relationship, enabling us to guarantee an equally high quality standard.

Final inspection

Unless defined otherwise, the final inspection shall be based on DIN AQL1.5 and carried out by means of digital measuring projector, all types of callipers and sometimes servo-controlled spring testing scales. The data determined in the process can be documented with the official QS-STAT automotive supplier programme in digital or paper form on request. All measurement tools are subject to strict test instrument monitoring periodically carried out to around 80% by an external, accredited provider.

Thür + Co. AG Spring Factory actively supports your projects – as your consultant, design engineer and manufacturer.