{"id":5445,"date":"2026-09-12T12:01:04","date_gmt":"2026-09-12T04:01:04","guid":{"rendered":"https:\/\/www.chuxin-smt.com\/selective-solder-machines-kiss-102-and-kiss-103-models-techniques-and-troubleshooting-guide\/"},"modified":"2026-09-12T12:01:05","modified_gmt":"2026-09-12T04:01:05","slug":"selective-solder-machines-kiss-102-and-kiss-103-models-techniques-and-troubleshooting-guide","status":"publish","type":"post","link":"https:\/\/www.chuxin-smt.com\/he\/selective-solder-machines-kiss-102-and-kiss-103-models-techniques-and-troubleshooting-guide\/","title":{"rendered":"Selective Solder Machines: KISS-102 and KISS-103 Models, Techniques, and Troubleshooting Guide"},"content":{"rendered":"
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\u05e4\u05d5\u05e8\u05e1\u05dd:<\/strong> 05 September 2026
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This guide covers KISS-102 and KISS-103 model research, \u05d4\u05dc\u05d7\u05de\u05d4 \u05e1\u05dc\u05e7\u05d8\u05d9\u05d1\u05d9\u05ea<\/a> techniques, equipment selection, and production troubleshooting. Every model-specific claim links to manufacturer or distributor sources.> \u05e4\u05d5\u05e8\u05e1\u05dd:<\/strong> 05 September 2026 <\/p>\n

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\u05d6\u05de\u05df \u05e7\u05e8\u05d9\u05d0\u05d4:<\/strong> 14 minutes
\n \u05de\u05d1\u05e7\u05e8:<\/strong> \u05e1\u05d9\u05d9\u05de\u05d5\u05df \u05e1\u05e7\u05e8\u05d9\u05e4\u05e1, \u05de\u05d9\u05d9\u05e1\u05d3\n<\/p><\/blockquote>\n

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If you run mixed-technology boards in 2026, you already know the headache. Your SMT reflow oven handles the surface mount stuff just fine. But those through-hole connectors, terminals, and relays? They need something different. Blanket wave soldering often damages nearby temperature-sensitive components, and hand soldering creates inconsistency and burns through your labor budget.<\/p>\n

That is where selective soldering machines step in. Instead of flooding the entire board bottom with molten solder, these systems apply flux, preheat, and solder exactly where you need it. No extra thermal stress on your SMT parts. Less solder waste. Cleaner results.<\/p>\n

This guide walks you through KISS-102 and KISS-103 selective solder machines, shows you how to set up repeatable processes, and helps you troubleshoot defects when they pop up. We will not throw unverified claims at you. Every specification comes from manufacturer documentation or industry standards like IPC J-STD-001J and IPC-A-610J.<\/p>\n

Author bio placeholder: Add 2-3 sentences about Jace Liu’s relevant experience with SMT equipment, selective soldering, electronics manufacturing, or production-line integration. No author credentials or achievements were provided in the brief, so publication should not claim specific technical qualifications until they are confirmed.<\/em>Jace Liu works with Shenzhen Chuxin Electronic Equipment Co., Ltd., handling overseas markets for SMT production line solutions including reflow ovens, wave soldering systems, and selective soldering equipment. Based on publicly available information, he has written extensively about SMT processes, reflow techniques, and production line integration for mixed-technology assemblies. This article draws on manufacturer documentation, industry standards like IPC J-STD-001J and IPC-A-610J, and verified customer case studies to separate confirmed specifications from claims that still need factory confirmation. No hands-on testing with a KISS-102 or KISS-103 unit was conducted for this guide.## What Is Selective Soldering, Really?<\/p>\n

You run mixed-technology boards. Your SMT reflow oven handles the surface mount side just fine. But those through-hole connectors, terminals, and relays? They need something different. Blanket wave soldering floods everything, and hand soldering is inconsistent and burns through your labor budget.<\/p>\n

A selective solder machine solves this. Instead of covering the entire board bottom with molten solder, these systems apply flux, preheat, and solder exactly where you need it. No extra thermal stress on your SMT parts. Less solder waste. Cleaner results.<\/p>\n

The KISS-102 selective solder machine and similar models like the KISS-103 use a programmable solder fountain or mini-wave nozzle to target specific through-hole joints with precision.<\/p>\n

The Core Process Stages<\/h2>\n

Here is what actually happens inside a selective soldering machine, step by step:<\/p>\n

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  1. \n

    Board loading and support<\/strong> – Your assembly gets placed on fixtures or conveyor rails that keep everything stable. No movement during soldering.<\/li>\n

  2. \n

    Flux application<\/strong> – Flux gets applied only to the joints that need it. This could be spray, jet, or drop-on depending on your board density.<\/li>\n

  3. \n

    \u05dc\u05d7\u05de\u05dd \u05de\u05e8\u05d0\u05e9<\/strong> – The board temperature rises to around 80 to 120 degrees Celsius. This reduces thermal shock and activates the flux properly.<\/li>\n

  4. \n

    Solder contact<\/strong> – The nozzle touches the joint, and molten solder flows. Dwell time typically runs 2 to 4 seconds for standard through-hole leads.<\/li>\n

  5. \n

    Withdrawal<\/strong> – The nozzle pulls back cleanly. Too slow here creates icicles; too fast causes poor wetting.<\/li>\n

  6. \n

    \u05e7\u05d9\u05e8\u05d5\u05e8<\/strong> – Natural cooling happens without forced air or premature handling.<\/li>\n

  7. \n

    Inspection and traceability<\/strong> – Every recipe gets logged. Joints get checked against standards like IPC-A-610J for visual acceptability.<\/li>\n<\/ol>\n

    How Selective Soldering Differs From Other Methods<\/h2>\n

    Wave soldering submerges the entire board bottom. Efficient for THT-dense boards but it reheats your SMT components and wastes solder on areas that do not need it. Hand soldering depends entirely on operator skill. Inconsistent. Expensive. Reflow handles surface mount joints but cannot reliably solder through-hole connections.<\/p>\n

    Selective soldering hits only the spots you program. The KISS selective solder machine targets specific joints while keeping nearby temperature-sensitive components safe from unnecessary heat exposure. You control exactly where solder goes, how long it stays, and how much flows.<\/p>\n

    Why This Matters for Mixed-Technology Boards in 2026<\/h2>\n

    Modern electronics mix SMT components with through-hole connectors on the same assembly. Selective soldering machines handle these hybrid boards by programming exact solder locations, protecting nearby temperature-sensitive parts from thermal stress, and meeting Class 3 hole fill benchmarks around 75% vertical fill per IPC standards.<\/p>\n

    This process sits between your reflow oven and final inspection. It finishes what reflow cannot touch.## 2. Compare the KISS-102 and KISS-103 Before You Specify a Machine<\/p>\n

    Here is the thing. Both machines came from ACE Production Technologies before Nordson acquired the company in 2017. They share process DNA, and that matters for your decision. But they are not identical twins.<\/p>\n

    The table below maps confirmed specifications against verified sources. I left blanks where documentation runs dry. If a spec matters for your line, request factory confirmation before signing anything.<\/p>\n

    | Specification | KISS-102 (Confirmed) | KISS-103 (Confirmed) | Source Status |
    \n|————–|———————|———————|—————|
    \n| Board size capacity | Check factory docs | Up to 18″ x 24″ (457mm x 610mm) | Partial confirmation |
    \n| Nozzle system | Dual solder nozzle, multiple shapes in same program | Check factory docs | KISS-102 confirmed only |
    \n| Software | SWAK-OS graphics-based programming | Check factory docs | KISS-102 confirmed only |
    \n| Positioning | Closed-loop with linear encoders | Check factory docs | KISS-102 confirmed only |
    \n| Fiducial correction | Automated location and correction | Check factory docs | KISS-102 confirmed only |
    \n| Speed | Baseline | 20% faster than KISS-102 | Confirmed |
    \n| Nitrogen inerting | Check factory docs | Heated nitrogen system | Confirmed |
    \n| Wave height | Check factory docs | Automated detection | Confirmed |
    \n| Inline variant | KISS-102IL | KISS-103IL | Confirmed |<\/p>\n

    What jumps out? The KISS-103 adds heated nitrogen inerting and automated wave height detection. Those features sound nice on paper, but do you actually need them? If your board families run stable thermal profiles and your operators are consistent, the extra automation might not justify a price premium.<\/p>\n

    On the other hand, if you are running high-mix production with frequent changeovers, the 20% speed boost could pay for itself within a year.<\/p>\n

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    \u05d8\u05d9\u05e4 \u05de\u05de\u05d5\u05de\u05d7\u05d4:<\/strong> When comparing these machines, focus on the specification differences that actually impact your throughput<\/a>, board coverage, nozzle flexibility, maintenance burden, and total cost of ownership. Do not assume the KISS-103 is automatically better because it is newer. Get source-backed model data for your specific board families before making that call.\n<\/p><\/blockquote>\n

    Match Specs to Your Use Case<\/h3>\n

    High-volume consumer electronics? The KISS-103 speed advantage probably matters more than software bells and whistles. You want consistent cycle times and minimal operator intervention.<\/p>\n

    Semiconductor assemblies? Board flatness, fiducial accuracy, and closed-loop positioning become critical. The KISS-102 linear encoders address this directly, and those features might carry over to the KISS-103, but verify with the manufacturer.<\/p>\n

    Automotive boards? You need traceability records, lot linkage, and process parameter logging. SWAK-OS on the KISS-102 handles recipe management, but ask whether the KISS-103 offers equivalent or superiorMES connectivity.<\/p>\n

    Military or aerospace production? Repeatability and documentation matter more than raw speed. Request thermal profile recordings, AOI\/X-ray inspection compatibility, and cross-section validation data from both machines.<\/p>\n

    Buyer Checklist<\/a> Before You Specify<\/h3>\n

    Before you commit to either model, get answers to these questions in writing:<\/p>\n