About us

Stanzwerk AG is a thriving, international company with ca. 330 employees creating high-quality products and services for the manufacture of electrical motors and transformers. Over 80% of its products are exported.
Stator and rotor laminations are stamped from magnetic steel strips and then joined together into ready-to-instal stator and rotor stacks via in-die stacking, welding, baking, riveting and clamping processes. In subsequent steps, the rotors are cast in aluminium and the rotor shaft is inserted.

The company is ISO 9001:2015, ISO 14001:2015 and IATF 16949:2016 certified. Stanzwerk AG has been part of the SITEM Group since 2017 and was in independent family ownership from its foundation in 1961 until 2017.

Company History

Half a century of experience has made us an internationally recognised competence centre for the stamping and stacking of laminations for the manufacture of motors and transformers. We understand what you’re talking about, ask questions, and work with you hand in hand. We always deliver reliable quality at reasonable prices. All from the heart of Switzerland.

Process Orientation

We pay special attention to frictionless processes. Everyone involved in the creation of your product works closely together. Important information and requirements are noted and passed on at every step, thus guaranteeing the best possible result.

We never stop learning

Every day we learn something new. Every order expands our knowledge level, which is already substantial after so many decades. We can also rely on employees who have been with us for years. Our experience thus remains inhouse, experience that also benefits you in the long run.

Experts at work

From the first customer contact to production to delivery: only highly qualified experts handle your job. Everyone profits from vocational training, higher education or selective further education: our employees, the company — and especially you, as customer. You can count on your order being carried out by experienced, dedicated professionals.

What’s important to us

Customer satisfaction is the best indicator of quality. And we have many long-lasting partnerships to prove it. We also maintain partnerships with our suppliers. As a subcontractor, we are often closely integrated into our partners’ processes. In addition, all processes in our company are standardised to ensure consistently high quality. This point is underlined by our many years of ISO 9001:2015, 14001:2015 und ISO/TS 16949:2016 certification.


We reach our goals with genuine win-win partnership, reliability and dedication as well as a continuous improvement process, from development and design to conception and final quality control.

We guarantee maximum customer benefits with our long-term aims of profitability, independence and social responsibility.


ISO 9001:2015

ISO 14001:2015

IATF 16949:2016

Stanzwerk AG Information


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