The selective wave soldering machine  is a common equipment for electronic production enterprises. The main function of the wave soldering machine is to solder the electronic components of the plug-in after being inserted into the electronic circuit board.

The wave soldering machine mainly sprays the molten solder (lead-tin alloy) into the solder wave crest required by the design through an electric pump or an electromagnetic pump, so that the printed board with pre-installed components passes through the solder wave crest to realize the components. Soldering of mechanical and electrical connections between terminations or pins and printed board pads.

Wave soldering (wave soldering machine) is mainly used for the traditional through-hole insertion printed circuit board electrical assembly process, as well as the mixed assembly process of surface assembly and through-hole insertion components. At present, the commonly used wave soldering machines in China mainly include: desktop wave soldering machine, double wave soldering machine, small wave soldering machine and lead-free wave soldering machine.