Three Solder Pots Selective Soldering
- Three solder pots for higher output needs
- Suitable for online DIP and mixed PCBA production
- Max PCB and fixture size: 500 x 500 mm
- German jet valve for small flux dots
- Hot air and IR preheating system
- CCD fast programming and picture programming
- Laser wave height detection for stable soldering
- Automatic nozzle cleaning function
- MES, WIFI, remote control, and online software upgrade

Quick Selective Soldering Output
The I.C.T-SS550P2 is a selective soldering machine for sale for factories that need better output than a single-pot machine. It has three solder pots, so it can handle more soldering points or more complex PCBA products in one online process. This design is useful for automotive electronics, power boards, industrial control boards, and other products with many through-hole pins.
For quick selective soldering, the machine uses online transport, CCD fast programming, and stable motion control. Operators can save the soldering path, solder temperature, flux type, nitrogen setting, and wave height into the program. This helps the same product run again with less setup time.
Selective Soldering Machine Nozzle
The selective soldering machine nozzle is one of the most important parts for soldering quality. SS550P2 supports soldering nozzle inner diameters from 2.5 mm to 30 mm, and special sizes can be customized. This helps match different pad sizes, pin layouts, and product designs.
The machine has automatic nozzle cleaning as a standard function. The cleaning frequency can be set based on production needs. This helps reduce nozzle blocking and keeps the wave shape more stable. SS550P2 also uses laser wave height detection. The system checks the solder wave without touching it, so the measurement is cleaner and more reliable during long production runs.


Stable Flux And Preheat
SS550P2 uses a German jet valve for flux spraying. It supports spot and line spraying, with a standard 130 μm spray nozzle. Optional 180 μm and 210 μm sizes are available. The spray range is 3–8 mm, and the spray precision can reach 0.1 mm. This setup helps apply flux only where the soldering area needs it.
The preheating system uses top hot air and bottom IR heating. The preheating area is L520 mm x W500 mm. Good preheating helps activate flux, reduce thermal shock, and improve hole filling. For a pcba automatic selective wave soldering machine, stable preheating is key because mixed boards often have different copper areas and different heat needs.
Online Process Control
This selective soldering machine for sale uses PC + PLC control. Operators can manage spray, preheating, soldering, wave height, temperature, nitrogen, and transport settings from the software. The operating system is Windows 10, and the interface supports Chinese, English, Japanese, Russian, and other languages.
SS550P2 also supports CCD fast online programming, offline programming, picture programming, and program import. The system can trace soldering data for each soldering point. This is useful for factories that need process records. With MES adaptability, WIFI connection, online software upgrade, and remote control, the machine fits modern PCBA production lines better.


Built For Factory Lines
The I.C.T-SS550P2 is made for online use, not only stand-alone soldering. It supports SMEMA line connection, segmented roller transport, automatic width adjustment, and online PCB replacement. The transport width is 60–500 mm, and the maximum PCB weight is less than 20 kg.
For customers looking for a selective soldering machine for sale, SS550P2 is a good choice when output, process repeatability, and future line expansion are important. It can work with upstream and downstream machines in a full DIP or SMT + DIP line. I.C.T can also help plan the full process, including fixtures, exhaust, nitrogen, air supply, layout, and operator training.
| Item | I.C.T-SS550P2 Specification |
|---|---|
| Model | I.C.T-SS550P2 |
| Process | Flux spraying + preheating + soldering |
| Max PCB / Fixture Size | 500 x 500 mm |
| Transport Width | 60-500 mm, auto adjustment |
| Flux Tank | 1L pressure tank |
| Preheating Area | L520 mm x W500 mm |
| Solder Pot Quantity | 3 sets |
| Solder Pot Capacity | 12 kg |
| Machine Size | L4200 x W1850 x H1650 mm |
| Machine Weight | 2000 kg |
| No. | Item | Spec. | Qty |
|---|---|---|---|
| 1 | Soldering nozzle | 3/6 | 1 PCS |
| 2 | Soldering nozzle | 4/8 | 1 PCS |
| 3 | Soldering nozzle | 6/10 | 1 PCS |
| 4 | Soldering nozzle | 8/12 | 1 PCS |
| 5 | Soldering nozzle | 10/14 | 1 PCS |
| 6 | Nozzle cleaning fluid | NC02H-011 | 1 Bottle |
| 7 | Nozzle cleaning powder | NC02H-021 | 1 Bottle |
| 8 | Calibration glass plate | 125 x 125 mm | 1 PCS |
| 9 | Heat gloves | 500°C resistance | 1 Pair |
| 10 | Tin slag spoon | 304 stainless steel | 1 PCS |
| No. | Item | Qty | Replacement Cycle |
|---|---|---|---|
| 1 | Nitrogen seal top | 1 PCS | 6 months |
| 2 | Nitrogen seal bottom | 1 PCS | 6 months |
| 3 | Drainage tube | 1 PCS | 1 year |
| 4 | Flux filter | 1 PCS | 6 months |
| 5 | Flux nozzle | 1 PCS | As needed |
| 6 | Soldering nozzle | 1 PCS | 1 month |

Related Products
How About I.C.T
Factory And Solution Ability
I.C.T is a factory and full-line solution provider for SMT and DIP production. We help customers choose the right equipment, design the line layout, plan the process, and prepare the factory conditions before machines arrive.

For customers searching for a selective soldering machine for sale, I.C.T can support more than the machine itself. We can plan the full PCBA line around the product. This may include SMT printer, SPI, pick and place machine, reflow oven, AOI, DIP insertion line, wave soldering machine, selective soldering machine, coating machine, conveyors, loaders, unloaders, and testing equipment.
Machine Testing Before Delivery
Before shipment, I.C.T checks the machine structure, wiring, software, motion system, transport system, flux system, preheating system, soldering system, CCD function, laser wave height detection, and nozzle cleaning function.

For SS550P2, our engineers pay special attention to the three solder pots, wave stability, temperature control, online transport, and program saving. If the customer shares PCB samples or drawings, we can also review the selective soldering path and give process suggestions before delivery.
Customer Case Support
I.C.T selective soldering machines are used in automotive electronics, industrial control, LED lighting, communication devices, power electronics, home appliance control boards, and other PCBA products.

In real projects, customers often need support with flux amount, solder temperature, preheating temperature, fixture design, selective soldering machine nozzle choice, soldering path, and cleaning cycle. I.C.T helps customers check these details during setup. This helps move the line from first trial production to stable mass production.
After-Sales Service
I.C.T provides installation guidance, operation training, programming training, process setup, maintenance training, and spare parts support. Our engineers can support customers onsite or through remote video, based on the project plan.

For quick selective soldering production, training matters a lot. Operators need to know how to build programs, set spray parameters, adjust preheating, check soldering quality, clean nozzles, and maintain the solder pot. I.C.T helps the customer build these skills step by step, so the team can run the machine with more confidence.
Certificates And Quality
I.C.T equipment follows international production and safety requirements. For full-line projects, I.C.T can support CE, ISO9001, and ISO14001 related project needs.

We can also prepare operation manuals, maintenance guides, machine test photos, packing photos, and training records for overseas customers. These documents help with factory audits, project acceptance, import clearance, and internal quality work.
Customer Feedback
Customers value I.C.T because we understand both machines and production. A pcba automatic selective wave soldering machine must match the PCB, fixture, soldering point layout, line speed, and operator skill level.

Many customers give good feedback after installation because I.C.T helps solve real process problems. These may include bridge soldering, poor hole filling, unstable flux spraying, wrong nozzle size, uneven preheating, or fixture mismatch. For new factories, this support is often more important than the machine itself.
FAQ
What is selective soldering used for?
Selective soldering is used for soldering through-hole parts on PCB assemblies that already have SMT components. It is a better choice when full wave soldering may damage nearby parts or when only a few DIP pins need solder. Many factories use selective soldering for automotive boards, power control boards, industrial electronics, LED drivers, and communication products. The machine applies flux, preheats the PCB, and solders only the selected points. This helps reduce manual soldering work and gives a more repeatable process.
What is the difference between wave soldering and selective soldering?
Wave soldering solders the whole bottom side of the PCB as the board passes over a solder wave. Selective soldering only solders the points that are programmed. Wave soldering is better for boards with many through-hole parts and enough bottom-side clearance. Selective soldering is better for mixed boards with SMT parts, tall parts, fine spacing, or areas that should not touch solder. If your PCB has only a few DIP connectors after SMT assembly, selective soldering is often safer and easier to control.
Why do solder bridges happen in selective soldering?
Solder bridges usually happen because the solder wave, flux amount, nozzle size, PCB design, or soldering path is not set correctly. Too much flux, poor preheating, wrong nozzle size, or slow separation from the solder wave can also cause bridging. The first things to check are pin spacing, pad design, flux spray range, solder temperature, wave height, and travel direction. In many cases, changing the nozzle size, adjusting the soldering angle, or improving preheating can reduce bridges.
How do you improve hole filling in selective soldering?
Good hole filling comes from correct preheating, enough flux activation, stable solder temperature, and proper contact time. If the through-hole barrel does not fill well, check whether the PCB is too cold before soldering. Also check flux amount, solder wave height, nozzle size, and dwell time. Thick copper boards and heavy ground layers usually need stronger preheating. I.C.T engineers often review the PCB layout, fixture design, and soldering path before setting the final process. This helps avoid trial-and-error on the production floor.
Is nitrogen needed for selective soldering?
Nitrogen is not always required, but it is strongly recommended for stable selective soldering. Nitrogen helps reduce oxidation on the solder wave. It also helps improve wetting and reduce solder dross. This is useful for lead-free soldering, small nozzles, long production runs, and boards with tight quality needs. Without nitrogen, the solder wave may become less stable over time, especially when the nozzle is small. If your products are automotive, industrial, or high-reliability boards, nitrogen is usually worth using.





