Passionate Consultancy

Stephan Kallee, Bild: Wikipedia, Tobias Klenze, CC-BY-SA 4.0

Stephan Kallee

AluStir provides you with technical consultancy and welding machines particlularly for the following processes:

AluStir is the Sales Representative of TWI Ltd (The Welding Institute) for consultancy and R&D Services in Southern Germany, Austria and Switzerland.

Regarding friction stir welding we collaborate with Stirtec GmbH in Premstätten since 2016.

We offer friction welded parts in a well established collaboration with Klaus Raiser GmbH & Co. KG.

AluStir acts case by case as world-wide sales repre­sen­tative for rotary friction welding machines of U-Jin Tech Corp. in South Korea. 


We help you to select the correct welding process for your application.

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We provide you with a customer-specific machine concept for your products.

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We supply you with turn-key solutions from a feasibility study over parameter optimisation, machine specification, and training to production ramp-up support.

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Core Competencies


Our consultancy is based on a scientific education as Mechanical Engineer and International Welding Engineer.

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We provide consultancy about the industrial application of innovative welding processes to world-wide companies since 1995. 

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Over the years, we have managed projects up to 8,5 Mio €, where we tried to get at least a tenfold return on investment in comparison to project cost.

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