The purpose of research is the synthesis and presentation of new designs of energy-saving transport and technological systems. The object of research is the processes of transportation of bulk materials by transport and technological systems with screw working bodies. The subject of research is the design of energy-saving transport and technological systems with screw working bodies and their parameters. The method of generation of constructions of energy-saving transport-technological systems with screw working bodies by synthesis of hierarchical groups by means of morphological analysis is offered in the work. The model of the mechanical system "screw conveyor" with grouping of constructive elements on hierarchical groups and assignment to the first group of mechanisms of transportation of freight, screw working bodies and mechanisms of transfer of the twisting is developed. Results. A method of structuring the structures of energy-saving transport and technological systems with helical working bodies and a method of their improvement based on the study of the properties of the elements of their structure in accordance with the theory of synthesis of hierarchical groups using morphological analysis.