Selective Soldering

Selective soldering is how high-mix EMS factories stop paying for hand-soldered THT joints. The SL-600 is Southern Machinery's compact mini selective soldering machine: one motion platform that performs selective fluxing and selective soldering on a fixed PCB, with PC recipe control, upper and bottom IR preheat, a 15 kg titanium solder pot, N2 inline heating and optional SMEMA online transport. This guide covers what the machine is used for, how it slots into a complete PCB assembly line, the specifications Southern Machinery publishes, the parameters a buyer must confirm before ordering, and the quality and ROI case for automating selective soldering on power supply, appliance, LED, automotive and industrial control boards.

The S100B desktop selective soldering machine enables fixture-free HMLV THT assembly for power electronics, industrial control, and NPI lines — without wave solder changeover overhead.

The S100B desktop selective soldering machine from Southern Machinery enables fast, fixture-free changeover for high-mix THT PCB assembly. Learn how it cuts changeover time and improves HMLV production.

How to choose between dip soldering, Wave Soldering, and selective soldering for THT PCB assembly — a practical process guide for EMS and ODM buyers.

S100B desktop selective soldering from Southern Machinery: fixture-less, ultra-fast changeover for high-mix THT PCBA, plus a buyer's selection checklist.

The SO-300 offline selective soldering machine from Southern Machinery delivers ±0.1 mm accuracy and a 300×300 mm soldering area, with PC-based recipe control for high-mix THT soldering and PCB rework.

Optimize THT soldering with the S-SWL31 single-head selective wave soldering system. Ideal for high-mix PCB assemblies requiring precision thermal control.

Single-head selective wave soldering for mixed SMT/THT boards: protect SMD joints, cut flux waste, replace hand soldering with repeatable automated THT joints.

The S100B desktop selective soldering machine from Southern Machinery delivers fast, fixture-free changeover for HMLV PCBA production — precision wave soldering for batch sizes as small as 1.

The S100B desktop selective soldering machine from Southern Machinery enables fixture-less, ultra-fast changeover for high-mix, low-volume (HMLV) PCBA production. Ideal for EMS factories, R&D labs, and repair centers nee

Southern Machinery's S100B Desktop Selective Soldering Machine enables ultra-fast, fixture-free changeover for high-mix, low-volume PCB assembly. Compact, precise, and cost-effective.