Brzyski, M. Nowak, P.N. JACoW Publishing Geneva, Switzerland The SOLARIS synchrotron in Kraków is a third-generation synchrotron radiation source operating in the medium electron energy range. In 2019 a decision has been taken to design and build an infrared line. We designed the chamber supports and the mirror movement system. the line is at the stage of assembly and testing. We would like to present it