Final thesis is based on field of metalworking fluids. Metalworking fluids are important in cutting processes. In order to ensure proper cutting, parameters needs to be within the prescribed limits. There is still a lot of manual control and regulation of parameters in the industry, so we want to automate control and regulation of parameters as much as possible. Therefore, the final thesis in based on systems that allow it. At the beginning of the final thesis is an overview of metalworking fluids theory. In the following, we become acquainted with the systems for automatic parameter control, as well as systems that allow us automated regulation of concentration. Finally, a system that allows us to automatically control and regulate concentration is presented in more details.