may 032016

STEAJSA has been awarded through its mother company (AAF International) 6 open cycle stacks for 6 x SGT-600 and2 open cycle stacks for 2 x SGT-400. This order corroborates, not only STEJASA’s exceptional position with EPC contractors and HRSG companies, but also with OEMs.

oct 202015

logo-header-aafAAF International’s Power and Industrial division has acquired 100% share capital of Stejasa, Agregados Industriales, S.A.

Established in 1974, Stejasa is a market leader and a globally recognised brand in the field of diverter dampers, hot exhaust systems and a wide range of flue gas dampers. Its team brings over 40 years of sector knowledge, competencies and know-how into the AAF family, extending the company’s core expertise.

Head-quartered in Madrid, Spain and with operations around the globe Stejasa has been servicing the highly specialised needs of Power Generation and Oil and Gas customers under the ownership and leadership of Juan Manuel Victorio. Stejasa has evolved the fundamental design and knowledge of its complex damper systems to place it at the forefront of the market, servicing both original equipment manufacturers and EPC’s (Engineering, Procurement & Construction Co’s).

Stejasa has sold over 10,000 dampers to date and with over 95% of its business outside of Spain its excellent reputation is well known around the world and with many customers. With specialist knowledge in a wide range of products and services the acquisition extends the AAF product offering and associated expertise.

AAF International is now considered one of the world’s leading solutions providers for gas turbine auxiliary equipment, filters, repairs, refurbishment, retrofit and upgrades. This includes acoustic enclosures, exhausts, silencers, noise barriers and noise mitigation services. AAF’s multifunctional team of acoustic, mechanical and structural engineers already serve a broad range of applications and customers around the world. The acquisition of Stejasa will firmly strengthen the expertise and experience in this area, bringing added value and more choice and knowledge to customers.

Darren Allsopp, COO of the Power and Industrial division of AAF International commented, “The acquisition brings many synergies which reinforces the core competencies of the AAF Power and Industrial division. Together we can establish a unique position for AAF International and the future prospects are very exciting. Stejasa’s expertise and experience will open up new opportunities as we look to become the supplier of choice for gas turbine solutions. I would like to take this opportunity to welcome Juan Manuel and his team to the AAF International family.”

abr 282013

After 10 successful years in Korea, STEJASA has decided to take one step further in what is today´s most important market for Combined Cycle Power Plants. We have recently signed a strategic agreement with UNISON eTECH to work on a licensee & representative basis. Thanks to this, STEJASA’s gas turbine exhaust bypass systems, diverter dampers, gas distributors, multilouvres and guillotines will have a better penetration in this country. Therefore, it is with great honor, that we welcome UNISON eTECH to the STEJASA family.

For more information please contact Mr. Bryan KIM at or Mr. Jean Michel ARTIGAS

feb 212012

STEJASA has appointed Jean Michel Artigas as Sales Director. Based in STEJASA´s head quarters, he will lead the international expansion already started roughly 15 years ago. Before assuming this new position, Mr Artigas gained 12 years of experience in various senior level roles in STEJASA and other EPC companies.

Stejasa, part of Sercobe

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mar 312009


Stejasa part of Sercobe

Stejasa part of Sercobe

STEJASA is a member of SERCOBE Asociación Española de Fabricantes de Bienes de Equipo, to which several companies related to design, maintenance and manufacturing are part of. STEJASA with this vinculation intends to enhance its position in the market representing our industry to foreign and national agents by promoting exportations and offering itself as a high quality alternative in futures projects. STEJASA directresses point out to the same direction to SERCOBE principles where quality and competitiveness has got continue evolution and performs a decisive role in our activity. SERCOBE is taking part of different consulting organisms in Europe including public government’s administrations and ministries in SPAIN , those entities has counting to STEJASA as supplier over the last 30 years and we are sure this relation will continue contributing to the local development.