The SciApsX-555 is a globally adopted 55kV portable X-ray fluorescence spectrometer, inheriting the "field-proven" SDD detector technology. It combines innovative internal geometric structures, cutting-edge analytical techniques, and over two decades of accumulated experience from the research and development team, achieving significant breakthroughs in the analysis performance of heavy metal and rare earth elements. With a large 50mm² detector area, it optimizes the analysis configuration for rare earth elements, providing an excellent solution for on-site detection of heavy metals and rare earth elements.