The work deals in a unitary way with the dynamic analysis and the synthesis of moulding machines performances used in the technologies specific to works of constructions. Thus, the conceptual substantiation, the physical and mathematical modelling of moulding machines in interaction with the processed material have as a basis theoretical and development researches elaborated within the programs of research coordinated by the Ministry of Education and Research. In this work, there are emphasized, in a synthesis, the main problems relating to the dynamic parameters of moulding machines in stabilized regime, necessary to accomplish the technology.