Rigaku’s multi-channel X-ray fluorescence spectrometer, Simultix, has been widely used for production control in fields such as the steel and cement industries, where rapid and precise analyses are required. We have developed a new model, the Simultix 14, in which performance, functionality and software user interface are greatly improved compared to the former model. The Simultix 14 can be connected to automated sample preparation apparatus for on-line operation. The Simultix 14 has been developed with a focus on fast, accurate analysis and reliability. Fully utilizing Rigaku’s accumulated X-ray technologies, the features of the Simultix12 have been improved and extended in the Simultix 14.