Ajka Transformatoren Kft. · Ajka, Hungary · Founded 2019
Inductance manufacturer specializing in flat wire technology for Europe
Coils, transformers, and chokes – designed and manufactured according to your specifications. We produce inductive components for manufacturers of EV charging systems, solar inverters, frequency converters, and UPS systems. Deliveries across Europe from our production site in Ajka, Hungary.
2019
Year of foundation
500 m²
Production area
2023
New production hall
Inductive Components from In-House Production
Coils
Custom flat wire coils for high current densities and compact designs – developed for the demands of modern power electronics.
Transformers
Wound transformers for industrial applications – tailored to your voltage levels, core geometries, and insulation requirements.
Chokes
Power chokes for frequency converters, solar inverters, EV charging systems, and UPS systems – optimized for minimal losses in continuous operation.
Inductance Manufacturer for the European Market
Ajka Transformatoren Kft. supplies industrial customers across Europe. From our production site in Ajka, Hungary, we deliver inductive components to the German-speaking markets of Germany, Austria, and Switzerland – as well as to all other EU countries. Our customers are manufacturers of EV charging systems, solar inverters, frequency converters, and UPS systems that require reproducible wound components according to technical specifications.
Less Copper, Less Losses, Less weight, Less Size and Better controllability.
Chokes for 5KW to 500KW Applications!
Our integrated multi-phase inductor combines multiple inductors into a single unit – without requiring any changes to your existing circuit design. Compared with a customized 3 PH Choke to a Toroidial Choke Solution it offers: weight is reduced by 37% (from 3.5 kg to 2.2 kg), the coupling coefficient drops from 0.45 to 0.15, and core losses are reduced from 21 W to 12.7 W. The result: simplified power control, significantly reduced installation space, and higher overall system efficiency.
What Sets Ajka Transformatoren Apart
Flat Wire Winding Technology
Higher current densities, more compact dimensions, and improved thermal dissipation compared to conventional round wire – achieved through precise flat wire winding in our in-house production.
Integrated Multi-Phase Designs
Multiple inductors combined into a single unit – 45% less volume, 37% less weight, and inductance balance of ±0.1% instead of ±14%.
In-House Manufacturing in Ajka
500 m² of production space, 15 production employees, and a newly built production hall (2023) ensure consistently high manufacturing quality.
Focus on Power Electronics
Coils, transformers, and chokes specifically developed for manufacturers of EV charging systems, solar inverters, power inverters, and UPS systems.
Frequently Asked Questions About Our Inductors
What is flat wire winding technology?
What is flat wire winding technology?
Flat wire winding uses a rectangular copper conductor instead of round wire for winding coils, transformers, and chokes. The rectangular cross-section allows for tighter winding density (higher fill factor), higher current density within the same space, and improved heat dissipation due to larger contact surfaces. The result is more compact and efficient components – especially relevant for high power density electronics.
What applications are your inductive components suitable for?
What applications are your inductive components suitable for?
Our coils, transformers, and chokes are used in EV charging systems (AC and DC charging), solar inverters, frequency converters, power inverters, and UPS systems. We develop all components according to your specific electrical and mechanical requirements. Please contact us with your specifications.
What is an integrated multi-phase inductor and what are its benefits?
What is an integrated multi-phase inductor and what are its benefits?
An integrated multi-phase inductor combines multiple single inductors into one shared magnetic circuit. Compared to separate inductors, it reduces size (−45%) and weight (−37%), improves inductance balance to ±0.1%, and lowers the coupling coefficient to 0.15. The circuit design remains unchanged. This simplifies power control, especially under DC bias conditions.
Which countries do you deliver to?
Which countries do you deliver to?
We supply industrial customers across Europe, with a focus on the German-speaking markets (Germany, Austria, Switzerland) as well as all other EU countries. Our location in Ajka, Hungary, provides strong logistical access to all European markets.
Do you manufacture according to custom specifications?
Do you manufacture according to custom specifications?
Yes. All our products are manufactured based on your technical specifications. Please contact our sales team with your requirements – we will provide you with a tailored offer.
How can I request a quotation?
How can I request a quotation?
You can use our contact form, send us an email, or call us directly. The more detailed your technical specifications (inductance value, current, voltage, core geometry), the more precise our quotation will be. We will respond promptly.
Technical Documents & Downloads
You can download technical datasheets and product information directly. For specific design questions or custom manufacturing requests, please contact our sales team directly.
Interested in working with us?
Contact us with your technical requirements – we look forward to inquiries from the European power electronics industry.
