Influence of technology factors and conditions of sintering of powder composite materials on a basis of copper on physicomechanical and operational properties of sealing antifrictional details was investigated. Advantages and lacks of vacuum sintering of powder preparations from copper-graphite materials were revealed and the optimum parameters of technological process of reception of ready details were developed depending on quality of initial powders. The experimental batch of parts has been made and the full-scale tests of inserts of the head collecting current of a trolley bus have been conducted. The optimum composition having high complex tribotech-nical and service properties has been determined.