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We are a global pioneer in trailblazing lamination stacks – from the initial idea to industrialization.

 

We believe in better solutions for electric motors, which is why we have a different way of thinking. We challenge industry with feasibility and industrialization – and we make outstanding lamination stacks!

Technologies

We work with our customers to develop solutions and feasibility studies for better electrical sheet packages. In doing so, we draw on our decades of experience in the areas of materials, processes, tools, machines and digital data.

Contacts

Depending on the requirements, different specialists from various disciplines are needed. They are the basis for an optimal result. A successful partnership is based on trust and reliability – fundamental values that we live by. Let’s be successful in the market together!

I’m an entrepreneur
I’m an entrepreneur

If you are an entrepreneur with a new idea for electric motors, you have come to the right place. We support you with feasibility studies, industrialization and cost budgets to help you flesh out your project. We are happy to be a strong partner at your side!

I’m a developer
I’m a developer

The earlier we discuss the feasibility, tolerances and functional integration of the electrical laminations in the development phase, the better. Consider the entire range of technologies and possibilities with us in order to develop the ideal laminated core for your motor. Together we will find optimum solutions in all dimensions!

I’m a buyer
I’m a buyer

With us, you have a single point of contact – from the drawing to samples to industrialization to production at your site. Our solutions and technologies open up a future in which you can bring production to you. Let’s take the path to series production together and give yourself the freedom to “make” or “buy”.

I’m a supplier
I’m a supplier

We are constantly working to push the boundaries in terms of materials, tools, processes, machines and digitalization. Our suppliers are innovative and want to challenge the industry with us. Help us to further develop our product solutions, manufacturing processes and industrialization.

I’m a researcher (university)
I’m a researcher (university)

New technologies need visionary ideas. SWD works together with universities and researchers as well as with specialists in the fields of electrical laminations and electric motors. We think together and holistically in terms of materials, tools, processes, machines and digital data. Let’s work in the same direction – from the laboratory to the industrialization of tomorrow!

Environment

We at SWD have been reducing CO2 for years using various measures. For example, we source all of our electricity from hydropower, from the solar panels on the buildings, and the buildings are heated by heat pumps. Electric motors drive the future and we are helping to manufacture them in a more environmentally friendly manner.

Find out more

Opinions from the company

This is what our employees have to say about our company.

Pascal Huber

‘Shaping the future together with renowned customers is what drives me.’

Mike Konsai

‘Demonstrating feasibility and reducing tolerances is what I’m passionate about.’

Florian Gjini

‘Our strength lies in supporting our customers and reacting quickly and flexibly.’

Milestones

2025

The first three BPS® machines for axial flow segments have been commissioned.

2024

Realization of a convertible large-scale EPS® system for a customer in Germany.

2023

Commissioning of the new BPS®-Flex and EPS®-Flex machines for validation and serial production of all new baked components.

2022

Process development for baked stators and rotors for car and truck engines using EPS® technology. Construction of a large-scale plant in collaboration with Schuler Pressen GmbH for an automotive customer.

2021

Start of developments for the industrialization of axial flux motors. Important elements include 3D punched segments, wound components, new tool concepts and new materials.

2020

The first EPS® series system designed for the ‘high-speed’ baking of stators and rotors is brought into operation.

2018

The first EPS® series system for the ‘high-speed’ baking of stators and rotors is brought into operation. The move into the new production hall is marked by a visit from Minister President Winfried Kretschmann and State Governor Dr Urs Hofmann.

2016

Launch of the first Backpaketier system® for single-unit tooth production.

2014

Automotive certification ISO/TS16949.

2012

Team expansion in development, packaging technology, and punching operations – accompanied by the move into our new production facility.

2009

Development of a laser welding system for laminated electrical steel packages.

2007

Development of a plasma welding technique for laminated electrical steel packages.

1998

Development begins on bonded stacking as a welding alternative.

1993

Foundation of SWD AG in Densbüren.

Key figures

60

Employees

50

Customers

20 million

Digital process data

10

Industrialization processes at the customer’s premises

2.1 million

EPS parts

19 million

BPS parts

FAQ – Looking for answers?

Please find them here.

What sets SWD apart from conventional stamping suppliers?

At SWD, we develop high-precision manufacturing technologies for the next generation of electrical steel lamination stacks.
Our focus goes beyond production itself; we prioritize low-loss and resource-efficient processing of electrical steel materials.

Thanks to our innovative processes, we  minimise material usage while ensuring precise, energy-efficient manufacturing. The result is higher motor performance, reduced losses, and a more sustainable production process.

You can learn more about our mission here, or explore our technological vision in this blog article on the future of stator and rotor manufacturing.

What are the limitations of today’s manufacturing for stators and rotors?

Modern stator and rotor designs are becoming increasingly complex – for example, through integrated oil cooling in the stator or flux barriers in the rotor. This results in more stamping steps and longer tooling setups, which negatively impacts component precision. At the same time, thinner electrical steel materials demand ultra-precise tools.

These developments are pushing conventional manufacturing to its limits.

SWD offers a solution with the segmentation of stators and rotors: it enables compact, high-precision production lines without the need for large-scale stamping presses. This paves the way for a more efficient and future-ready approach to electrical steel processing.

Learn more on our page about the future of stator and rotor manufacturing.

What is SWD’s vision for the future of manufacturing?

The future of manufacturing doesn’t lie in ever-larger stamping presses, but in compact, scalable special-purpose machines. SWD develops fully automated systems for producing electrical steel lamination stacks for stators and rotors. These systems can be operated without specialized personnel and achieve a very high Overall Equipment Effectiveness (OEE).

This approach provides maximum flexibility in make-or-buy decisions and helps reduce investment risks. Our solutions are already in industrial use today – and many more innovative systems are currently in development.

Learn more in our blog article on the future of manufacturing.


How does SWD ensure quality in manufacturing?

SWD sets new standards in quality assurance: All our systems operate with a proprietary control platform, enabling the creation and permanent storage of a digital twin for every single component produced.

This digital traceability allows for precise analysis of manufacturing processes and fact-based evaluation of customer data, drawings, and tolerances. The result is a comprehensive data foundation with no room for interpretation, ensuring maximum transparency and process reliability.

Thanks to this technology, SWD doesn’t just promise achievable tolerances – we prove them with real production data. That’s a decisive advantage over conventional suppliers.


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