Wave soldering machines are automated devices that utilize molten solder to form wave peaks for welding electronic components, widely applied in circuit board assembly. Their core principle involves driving solder alloys through electromagnetic or mechanical pumps to create stable wave peaks. As PCB boards pass through these peaks at specific angles and speeds, component leads form mechanical and electrical connections with solder pads. Modern wave soldering machines employ three-phase induction pump technology, featuring smooth wave peaks, reduced oxidation, and high efficiency. They support nitrogen protection, intelligent temperature control, and real-time parameter adjustments, enabling compatibility with lead-free soldering processes. Key workflow includes flux spraying, preheating, wave soldering, and cooling stages. Equipped with vision inspection systems, these machines enable automated quality control. Widely used in high-reliability applications, wave soldering equipment is evolving toward intelligent and energy-efficient directions through process optimization to enhance welding precision and production efficiency