In order to achieve a given output of a product in the planned period, the structure of the flow production system must be considered and selected. The structure alternatives differ from each other with the numbers of identical parallel flow lines, station numbers in each line and the cycle times. In the department for industrial engineering at Ilmenau University of Technology, a strategy for optimization of identical flow lines was developed so that the parallel buffers were combined with each other. The previous investigations of this strategy defined many logistical advantages. For this reason it is useful to organize and carry out further investigations which may lead to the use of this strategy in the industry. Based on an example, alternatives for planning and combination of identical flow lines are studied and presented. Furthermore, this paper offers two models for the realization of the tested flow system.