Press Release dated October 24, 2024

A construction project in Remmeltshofen marks a milestone: here stands a building whose walls were not constructed in the traditional way, but were printed using the mobile 3D printer KARLOS. This innovative joint project by Putzmeister, SCHWENK, and Rupp represents a major step forward for the construction industry and sends a strong signal toward digitalization and sustainability.

An event in Remmeltshofen has caused quite a stir: In just 29 hours of printing, a building with a floor area of 95 square meters (10 x 9.5 m) was constructed there—printed with precision. In doing so, the partners Putzmeister, SCHWENK, and the Rupp Group have not only demonstrated what 3D printing is capable of, but have also taken the construction process to a new level: No tedious setup or formwork—in less than an hour, Putzmeister’s mobile 3D printer KARLOS was ready for action and began building the structure, a local clubhouse, layer by layer. The company developed the fully electric construction machine specifically for such projects.

The building thus marks a milestone on the path toward the future of construction: faster, more efficient, and more sustainable. The concrete mix from SCHWENK used in the project contributes significantly to this goal through minimal CO₂ emissions during production and optimal use of resources. This not only saves time but also protects the environment—a win-win-win situation for project managers, building owners, and our planet.

“This project is a crucial step toward the further industrialization of construction using additive manufacturing,” says a spokesperson for Rupp, the construction company behind the project. “Here, digital planning and calculation are truly merging with the use of advanced materials and innovative printing technology to create a completely new approach to construction.” The next step? An apartment building, printed using the same technology—proof that 3D printing is scalable even for larger projects.

This unprecedented collaboration between Putzmeister, SCHWENK, and Rupp exemplifies this transformation: by joining forces to achieve a high degree of automation—this will fundamentally change the construction industry. The companies are convinced of this—and projects like this one serve as living proof: the future of construction has arrived.