Abstract: The configuration and characters of several microinjection molding plasticizing units were systematically introduced. A novel concept of microinjection molding system was presented. The system was designed as a multi microinjection module, which is matched with a vertical injection molding machine and applied on common injection molding machines. The mechanism and basic process of the multi microinjection molding was stated; via the multi microinjection molding, multiple microparts were obtained. The molding experiment indicates the efficient microinjection capability of the multi microinjection molding machines.

Key words: microinjection molding machine, micro part, injection unit, multi microinjection molding machine