S-WS250 Wave Soldering Machine by Southern Machinery

The S-WS250 automatic wave soldering machine brings lead-free dual-wave soldering to compact THT PCBs with repeatable, high-throughput joints.

What is this machine used for?

Compact automatic wave soldering for through-hole PCB assembly: spray flux, hot-air preheat, dual wave and fan cooling in one pass.

Power supplies, adapters, chargers and ballasts
LED lighting and driver PCBs
Consumer appliances and small home electronics
Automotive, industrial and EMS mixed boards up to 250mm wide

Verified specifications

Specs from the Southern Machinery product page. Confirm parameters during quotation.

| Parameter | Value |

| --- | --- |

| PCB size | Max 50~250mm |

| Conveyor | 0~1.8 m/min, 3~7° adjustable |

| Solder pot | Dual wave, ~200KG, up to 300°C ±1-2°C |

| Preheat / cool | 600mm zone up to 250°C, 3KW; 1 fan |

| Control / flux | PLC + touch screen, P.I.D + SSR; ST-6 spray, 5.2L |

| Power / air / size | 3P 380V AC, max 9KW; 4-7 KG/CM2; L2100xW1200xH1400mm, ~400kg |

Patented titanium alloy claws (non-stick tin, no board drop), low-dross nozzle and isolated fluxing are standard.

How it fits into a complete PCB assembly line

SMT placement and reflow handle the SMD side.
Radial or odd-form auto insertion places THT components.
The S-WS250 input conveyor receives boards from the insertion line.
Spray flux, preheat, dual-wave solder and cool in one pass.
Boards exit to unloader, lead cutter or inspection.

Key selection parameters for buyers

Maximum PCB width and component height in your mix
Target throughput and conveyor speed
Lead-free alloy, flux chemistry and 3P 380V power

ROI perspective

The S-WS250 replaces 3-5 manual soldering operators per shift, cutting labor cost and rework; consistent wave parameters reduce cold joints, bridges and skips. ROI modeling is provided case-by-case.

About Southern Machinery

Founded 2011 in Shenzhen, Southern Machinery serves 237+ global EMS, ODM, automotive and medical manufacturers with cost-effective SMT/THT automation: insertion, wave soldering, board handling, inspection, cleaning, spare parts and global support.

FAQ

What PCB sizes does the S-WS250 handle?

Boards 50-250mm wide, components up to 100mm, angle 3-7°.

Is the S-WS250 lead-free capable?

Yes. The pot reaches 300°C ±1-2°C, supporting lead-free alloys and RoHS production.

How is the machine controlled?

PLC + touch screen with P.I.D + SSR regulation and a recipe library.

What flux system does it use?

ST-6 spray fluxer with isolated fume exhaust, up to 5.2L.

Next steps

Contact: jasonwu@smthelp.com | WhatsApp: +86 13602562576

Catalog: https://file.autoinsertion.com | Images: https://ph.smthelp.com

YouTube: https://www.youtube.com/watch?v=v61h33g-jkM

Published by Southern Machinery — SMT/THT PCB Assembly Automation. Established 2011 in Shenzhen, serving 237+ global EMS, ODM, automotive and medical manufacturers.

S-WS250 Wave Soldering Machine by Southern Machinery - Lead-Free Dual Wave THT Soldering