High-precision Spraying Off-line Selective Wave Soldering Machine For Small-batch DIP Through-hole Production Product Overview HSTECH off-line selective wave soldering machine is engineered for mix-variety, small-batch DIP plug-in soldering. This integrated system combines flux spraying, infrared preheating, and selective wave soldering in a single compact unit, enabling fast production startup without custom fixtures. Occupying only approximately 1㎡ of floor space, the