The technique of process intensification and micro reaction technology has exceeded the laboratory stage recognizably for some time. Hence, the interest in the practical implementation in production processes for the manufacturing of fine chemicals and pharmaceutical products is high. The associated scale-up requires the adaptation of system components. With regard to metering pumps, this development means the realization of larger dosage volumes and flow rates at consistently high precision. Therefore, HNP Mikrosysteme offers with mzr® 11558 the next size of their hermetic inert pump series of micro annular gear pumps.