Welded Construction
PREIS is specialised in the production of high-quality welded constructions.

High-quality welded constructions

Our business is to provide highly innovative products from our two production sites in Slovenia and Bosnia. We create tailor-made solutions in close co-operation with our clients and offer our services from start of design phase to after-sales services.

We act as reliable partner for the global players on the electric power grid market, as well as for specific technical solutions for new challenges for advanced steel constructions.

Our specialists have experience on all aspects of high quality level requirements in compliance with up-to-date market standards. Corrosion protection according to ISO EN 12944 standards ensure long term durability of our products for highest requirements.

We organise deliveries of our products by land, sea and air. We have extensive knowledge for heavy loads and large scaled dimensions.

Our solutions:
Our Solutions:
3D-Development and Design

Our services cover design and manufacturing of power and traction transformer steel tanks as well as welding of special components with high performance requirements.

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Well trained employees, professional know-how in our products and ongoing investments allow us to reach special requirements and new goals together with our customers.

Our Products

PREIS designs and manufactures high quality welded constructions like transformer housings, yoke clamps, radiators and pipe workings. We meet all requirements and needs of our customers like corrosion protection, sandblasting, zinc spraying and hot dip galvanizing based on the latest environmental standard..

PREIS has many years of experience as producer of transformer tanks.

PREIS provides oil-tight corrugated tanks for distribution transformers and inductors according to customers design and relevant welding standards.

Traction transformer tanks are used in locomotives, urban railways and high-speed trains.

PREIS is a well-known and specialised manufacturer of high-grade welded constructions.

Cooling radiators are used to secure the cooling process of the transformer system.

Our production sites

PREIS Sevnica
Welded construction site in Sevnica, Slovenia
Our production site in Usora, Bosnia-Herzegovina
PREIS Pernitz
Headoffice of PREIS Group in Pernitz, Austria.

Download our certificates

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Power transformer

PREIS has many years of experience as producer of transformer tanks for power transformers. The product range covers small radiator units through medium voltage transformers to the biggest and most complex power transformers like HVDC-systems.

In addition to standard steel tanks, we have gained many years of experience in the production of special projects such as “Brückenmittelstücke” – compact high-power transformers for semi-autonomous rail transport, phase-shifters and, more recently, transformers for off-shore applications.

To complete the package, we offer our customers a range of extra services such as preparation of production documentation, identification of cost-reduction potentials and technical expertise in areas such as welding and corrosion protection according to ISO 12944 standards.

The scope of delivery for power transformer tanks includes:

  • tank
  • cover
  • conservator
  • turret
  • cable terminal box
  • piping
  • yoke clamps
  • shunts
  • wheels

Distribution transformer

PREIS provides  oil-tight corrugated tanks for distribution transformers and inductors according to customers design and relevant welding standards.

  • maximum fin height is 1600 mm
  • shot-blasted according to surface quality Sa 2.5
  • surface treatment according to ISO 12944

Traction transformer

Traction transformer tanks are used in locomotives, urban railways and high-speed trains. 

With regard to the construction and production of railed vehicles, PREIS is approved for the welding of plates, pipes and threaded bolts of carbon steel, stainless steel, copper and aluminium according to DIN EN 15085-2 (CL1) and EN ISO 3834-2.

The scope of delivery  of the product includes:

  • tank
  • top cover
  • conservator
  • cable terminal box
  • piping
  • shot-blasting according to surface quality Sa 2,5
  • corrosion protection according to ISO 12944

Special welded

We act as reliable partner for specific technical solutions with new challenges of advanced steel constructions like components for hydroturbines, turbogenerators, transport covers, marine equipment, etc.

Cooling radiator

To our main products we also count radiators for oil-cooled transformer systems.

Our history is our inspiration – Today, the PREIS Group employs more than 750 people at the productions sites in Austria, Slovenia, Croatia and Bosnia. The Group´s headquarter is located in Pernitz, Austria, and the company remains family owned. 

Our Vision -
Independent, stable and innovative!

Our assets!

The success story of the PREIS Group is based on responsibility, tradition and culture shared with both business partners and personnel.
Performance-orientated and innovative employees who are willing and able to accept responsibility are the main building block of our corporate culture. As a family-run company, we attach particular importance to satisfied employees who provide excellent support for our customers and partners through ongoing training and further education.

We offer exciting and demanding job opportunities in a variety of areas. Typical entry level positions in the PREIS Group are:

  • Apprentices (commercial, technical)
  • Worker – positions (Welder, Machine Operators, Iron Casting Workers)
  • Commercial positions in Sales, Logistics, Finance & Administration
  • Technical positions in Construction, Production, Research & Development
  • Leadership & Expert positions

We place great importance on continuity, stability, security and loyalty. A fair, co-operative partnership with our customers and suppliers and especially with our employees is our major focus.

Our financial stability gives us a high level of entrepreneurial freedom and the security of being able to bridge periods of economic instability. We reinvest our profits in structures, machines and equipment as well as in stable, attractive and healthy work places and in learning & development programs for our workforce.

We promote team-structures and team-work. Working together in cross-border project-teams is thus part of our corporate culture as is supporting departmental activities in the free time. The most important ambassadors, upholders and creators of our corporate culture are – besides our owner family – our leaders and our management.

Our leadership values are:

  • The managers are responsible for the continuous development of the company.
  • We value a friendly working environment and place great importance on job security and social values.
  • Our structures and processes are streamlined. We concentrate on the essential and execute this professionally.
  • Our management style is demanding and relies on communication.
  • We include our employees in decision making processes and implement decisions consistently and efficiently. 

Apply now

Go to our career page and send us an application for an open position, or send us an unsolicited application so we can get in contact with you. Please remember to describe which location and job would be attractive for you. We will forward your application to the proper personnel department and ensure a fast reply.

We look forward to receiving your application.