
Manufacturing inductive wound components: transformers, chokes and reactors from one-off to series production

trafomodern Transformatorengesellschaft m.b.H.
7053 Hornstein (AT)New on Amplifa
About trafomodern
trafomodern Transformatorengesellschaft m.b.H. is an Austrian company founded in 1945, headquartered in Hornstein (Burgenland), and specialised in the development and production of inductive wound components. The portfolio includes transformers, mains and motor chokes, reactors and converter transformers, also with air or liquid/water cooling and rated voltages up to 12 kV. Products are developed customised in close cooperation with customers, from one-off to series production. Fields of application include drive technology, renewable energies (wind, hydro and solar power), mobility (rail vehicles, cable cars, shipbuilding) as well as industry and mechanical and plant engineering, including on drilling rigs. Customers include companies such as Siemens, ABB, Enercon, Voith, Liebherr, Bombardier and Doppelmayr. Around 8,000 wind turbines in Europe, China and India have been equipped with trafomodern products over the last ten years. Every product is unit-tested before delivery.
- Site
- Hornstein
- Processes
- Development and production of inductive wound components (transformers, chokes, reactors,, Transformers with air cooling and liquid/water cooling (rated voltages up to 12 kV), Unit testing of every product before delivery including vibration tests on request, Consulting and professional long-term support, Customised development and production (one-off to series production), Unit testing of every product before delivery, Integrated quality management system
- Materials
- Copper
- Certificates
- EN-ISO 9001:2015, ISO 14001:2015, ISO 9001, ISO 14001
- Founded
- 1945
- Industries
- Drive technology, Renewable energies (wind, hydro, solar power), Mobility (rail vehicles, cable cars, shipbuilding), Industry / Mechanical and plant engineering, E-mobility, Oil and gas (drilling rigs)
- 01
Consulting and customised development
- 02
Winding and manufacturing of the inductive wound components
- 03
Unit testing of every product before delivery
- 04
Delivery and long-term support
Materials & Processes
Copper
Material of the windings for transformers, chokes and reactors; pricing is linked to the copper price.
Locations

Hornstein
ATHeadquarters: sales, development and production
- Lot size
- One-off to series production
- Materials
- Copper
Products & Components




Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and production of inductive wound components (transformers, chokes, reactors,Engineering | – | – | – | Single piece/small quantities – Series production | Copper |
| Transformers with air cooling and liquid/water cooling (rated voltages up to 12 kV)Engineering | – | – | – | – | – |
| Unit testing of every product before delivery including vibration tests on requestTesting | – | – | – | – | – |
Additional services
Reference customers
Quality
Every product is unit-tested before delivery in cooperation with the customer; vibration tests are available on request. The defect rate in final inspection is significantly below 0.2 percent; the integrated quality management system is certified to EN-ISO 9001:2015 and ISO 14001:2015.
| Evidence | Hornstein |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 1945
Company founding – 'Since 1945' is stated on the website and in brochures
- 2006
Initial certification of the management system (certificate AT003296) on 24.02.2006
- 2024
Start of the current certification cycle following the recertification audit on 24.11.2023 (certification start 06.01.2024)