The article presents the experimental study of synchronization methods of a brick moulding machine hydraulic drives. A new experimental setup for forming brick blanks with two hydraulic drives and a separate clay bar feeder was developed. The impact of changing the opening area of the adjustable throttle and the clay bar feed rate on the accuracy of the manufactured brick blanks was investigated on the experimental setup. The results show that the studied parameters have a significant impact on deviations from the nominal dimensions the brick blanks, and for different clay bar feed rates the optimal dimensions of the opening area of the adjustable throttle have been determined, which minimise deviations and provide the compliance with the state standard. The range of values of the opening area of the adjustable throttle working window, depending on the clay bar feed rate, at which all the manufactured blanks will fall within the limits of the permissible deviation, has been derermined. Based on the experimental data, analytical equation was obtained, it describes the relationship between the deviation from the nominal dimensions of brick blanks, the size of the opening area of the adjustable throttle, and the clay bar feed rate. The proposed synchronization method improves product accuracy and performance of the hydraulically driven brick moulding machine, reducing material waste and improving overall production stability. The results obtained have broad implications for the automated production of building materials, in particular for the optimization of hydraulic drive systems, used at industrial ceramic brick manufacturing plants. The developed methodology can be applied for other similar processes using hydraulic drive, which will contribute to the development of automated control systems of product quality.