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ONEJOON GmbH is a German plant engineering company with the German locations Bovenden, near Göttingen and Böblingen, near Stuttgart. The company has a tradition of over 125 years in the construction of highly flexible and technologically sophisticated furnaces in a wide range of industries. ONEJOON employs approximately 320 employees worldwide.

ONEJOON is the technology and market leader for oxidation and carbonization furnaces in the core market of carbon fiber production. The company occupies a prominent position in the markets for cathode and anode material production for lithium-ion batteries, hardening of blades and saw blades, sintering of metals and ceramics, heat treatment of aluminum wheels and in the field of special applications and novel materials (e.g. in the field of powder chemistry and fuel cells). In addition to customized furnace technology, ONEJOON also supplies the appropriate automation and integration of process and material flow.

Since January 2020 ONEJOON GmbH, the former Eisenmann Thermal Solutions GmbH & Co. KG, with locations in Germany, Poland, USA and China, has been a wholly owned subsidiary of the ONEJOON Group.

The parent company ONEJOON Co, Ltd. is a mechanical engineering company based in Suwon, South Korea, whose main market is the manufacture of high-temperature furnace systems including associated conveyor and process technology for processing cathode and anode material in lithium-ion batteries.

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Through "training on job" we prepare you specifically and individually for your field of activity.