SMD soldering with reflow ovens or wave solders

Soldering with an AIR reflow oven or in NITROGEN reflow ovens

Reflow soldering and wave soldering are two very different soldering techniques. Both soldering types are used in PCB assembly. 

Reflow soldering is in most electronics productions, an inline soldering process where components are reflow soldered performed by either hot air or nitrogen.

Wave soldering through hole components are soldered by a solder wave of melted solder. Wave soldering can also be performed in an atmosphere of hot air or nitrogen. 

Solder reflow ovens from BTU International. Their SMT soldering reflow ovens are called PYRAMAX. You can see all PYRAMAX reflow ovens above.