SMT & THT Automation Insights

Articles about full PCB assembly line planning, wave soldering efficiency, auto insertion workflows, and smart EMS factory ROI.

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How to Build a Lights-Out THT Line: Southern Machinery's Automated Through-Hole Assembly Blueprint
Aug 4, 2026

A lights-out THT line runs through-hole PCB assembly with minimal operators: automatic radial, axial and odd-form insertion, lead-free wave soldering and board handling linked in one continuous flow. This guide explains what a lights-out THT line is, what it is used for, the Southern Machinery machines that build it, typical applications across power supplies, LED lighting and home appliances, key selection parameters, and the ROI case for replacing manual DIP insertion. Southern Machinery (Shenzhen, China, founded 2011) has served 237+ global customers with SMT/THT/PCB assembly automation.

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