The conductivity of the molten metal makes it possible to apply force to the melt by using electromagnetic forces without the use of mechanical parts and causes it to be manipulated in any direction. In this research, a distinguished electromagnetic pump to create an intermittent flow of melt to achieve a controllable nozzle in various applications, such as 3D metal printers and equipment for the production of metal powder and granules, has been introduced. In this pump, the production of droplets on demand is based on the discharge of conductive fluid droplets by creating eddy currents and alternating electromagnetic forces inside the melt. This paper aims to investigate effective parameters on the droplet production rate and the effectiveness of the combination of the parameters to achieve an efficient droplet production mechanism. Also, an experimental comparison between pure tin and solder alloy of Sn-Pb is carried out to investigate the effect of the molten metal characteristics (surface tension, electrical conductivity, melting temperature and wettability) on MHD pump.