This innovative technology is based on a mechanical roll forming process. In a first step a locator groove is processed into the flanges. In the second step a special pattern is embossed in the edges of the web. After this the embossed web is set into the flanges' groove. Finally joining grooves are rolled alongside the web which press a part of the flange material against the embossed web. The result is a strong frictional joint with a perfect form fit.
This technology is mainly used for common mild steel and stainless steel. The process allows to position the profile components to each other at wish and to individually select the material thickness of both web and flange. Press fit profiles can thus be optimized to their specific use. Section zones subject to lesser loads are produced using reduced material thickness; zones subject to high loads are designed with greater material thickness, all according to the structural engineer's instructions.
The high flexibility of the production machinery allows fulfilling orders for projects where low batches are requested; also prototyping is not a problem. The possibility of cut-outs on flanges and web has not only design purposes but can be used to generate functional solutions.
Apart from standard geometries like I-beams and T-beams we offer the possibility to create asymmetric beams, double web beams for higher structural performance. For technical reasons, it is necessary to maintain a minimum distance from the edge of the flange when joining with the web (8 mm). Furthermore we are in the process of developing hybrid sections made from dissimilar materials for thermal, acoustic, magnetic and electric isolation.
The press fit technology offers huge benefits when it comes to decorative stainless steel sections where, prior to joining, the individual flat components can be polished which is more cost-effective than polishing a complex shape. The maximum production length is 15,000 mm with a profile width of 200 mm and a height of 400 mm. Small sections down to 50x50 mm can be produced as well.
Press fitt sections are mainly used in architecture and interior design.