Tenova LOI Thermprocess

Heat Treatment in Perfection

Tenova LOI Thermprocess with headquarters in Duisburg, Germany, is one of the leading companies
in supplying industrial furnace systems for the heat treatment of metals. Worldwide clients from the steel, aluminium and automotive industries rely on the technical solution competence and thousands of references. With a history of over 100 years Tenova LOI Thermprocess represents the entire know-how in the field of material properties and industrial furnace design. Tenova LOI Thermprocess is a global partner represented in all major markets throughout the world. 

Being a driver in the transformation of the metals industry towards decarbonization and sustainability, we implement proven thermoprocessing solutions and focus on the development and implementation of fossil-free annealing technologies, especially Hydrogen, as well as electrical heating capabilities in new plants and revamps.

The wide portfolio of technologies meets the most demanding market requirements including batch and continuous heat treatment lines for steel strip, heavy plates, pipes & tubes and forgings.

Tenova LOI Thermprocess technologies for production of grain-oriented (GO) and non-grain-oriented (NGO) electrical steel pave the way for e-mobility with state-of-the-art heat treatment equipment.

LOI Tenova - headquarter

Sustainable solutions such as melting and recycling furnaces for aluminium support reduction of waste and energy consumption. Innovative heat treatment lines for flat, cast and forged aluminium products complete the portfolio.

Tenova LOI Thermprocess offers the full range of solutions for the whole life-cycle of the equipment from a single source: Comprehensive process know how, design (mechanical, electrical and automation), project management and installation as well as modernization, maintenance and service.

Digitalization is one of the key drivers in our business. All our processes are enhanced by our smart digital solutions.

Tenova LOI Thermprocess offers reliable and green solutions that minimize the environmental impact and guarantee quality, production efficiency and safety.

Our commitment

Sustainable solutions for a green transition of metals.


We envision a greener, more sustainable future for the metals industry, designing and producing technologies that reduce environmental impact, improve production efficiency and increase performance. 

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We design, develop and promote innovative technologies at every level, leveraging our know-how to improve performance and make our business more sustainable. 

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We make reliability a core component of every solution we supply and every service we provide, helping our clients better manage facility quality and efficiency both today and tomorrow. 

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We believe safety is paramount for all our stakeholders, promoting a culture of safety among our people and designing robust safeguards directly into the technologies we produce. 

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