Stabilize through-hole soldering before bridges and skips repeat every shift
Selective Wave Soldering Machine SM-LII is for factories that need stable process results, clear line integration and a configuration matched to real PCB size, process window and production rhythm.
The real problem is not the machine. It is stable output.
For soldering and curing equipment, the buyer is not only buying hardware. The real target is fewer defects, stable process rhythm, less rework and a machine that fits the existing SMT line.
Problems this page should prevent
- Wave soldering defects usually cost more than the machine downtime itself.
- Wrong configuration causes rework, waiting time or avoidable downtime.
- PCB size, process window and line rhythm must match the real product mix.
- A cheap single machine is expensive if it creates daily production instability.
Why this model is useful
- Fluxing, preheat, solder wave, PCB width and process rhythm are checked before recommending the configuration.
- PCB/process size verified on page based on current product specification.
- Ambient to 250°C based on current product specification.
- Configuration is checked before quotation to avoid forcing the wrong model.
What to send before quotation
PCB size, product type, process target, conveyor direction, available space, required capacity and one photo or sketch of the line position if available.
Why choose S&M instead of a generic equipment supplier?
Process plus line matching
S&M checks the equipment as part of the production line, not as an isolated machine.
Configuration before quotation
We confirm whether the standard model fits. If nitrogen, vacuum, wider PCB, dual-track or custom layout is needed, we check it before quoting.
Practical cost structure
Factories need stable output and fast support without paying unnecessary international-brand pricing.
Verified technical specifications
These parameters are kept from the existing S&M product page. Final fit still depends on your PCB, process window and line layout.
| Model | SM-LII |
| Process | Selective soldering |
| Pump | Dual electromagnetic |
| Best For | Higher soldering workload |
| Integration | Inline or standalone |
| Machine Dimensions | 2980(L)x1910(W)x1662(H) |
| Total Machine Power | 30kw |
| Power Supply | 3-phase 5-Wire / 380V / Cable>=25 sq mm |
| Net Weight | 1800kg |
| Air Source Requirement | Pressure 0.4-0.6MPa |
| Nitrogen Source Requirement | Pressure 0.4-0.6MPa,Flow 1.5-2m3/hr/Solder Pot,Purity >=99.999% |
| Exhaust Air Requirement | RecommendationSpray area:>=10m3/Min;Solder Pot area:>=10m3/Min |
| Jig Through Size | L460xW460 mm |
| Max Soldering Area | L460xW460 mm |
| Control System | Industrial PC + Controller |
| Conveyor Width | 50-450 mm |
| Product Conveyor | 3 Independent Motor Conveyor; Spray、PreheatSection、Soldering Section Uses Roller Conveyor |
| PCB Conveyor Direction | Horizontal Conveyor(Left-to-Right or Right-to-Left) |
When to choose it — and when not to
Choose this model when
Choose this model when its process range, PCB width, heating/curing/soldering capability and line integration match your production problem.
Do not choose it blindly when
The real issue may be nitrogen demand, vacuum void reduction, PCB width, flux control, cooling time, curing method or line layout. Send the process details first so we can check.
Before you buy, check these points
- PCB size, product type and required process window.
- Target capacity and conveyor speed.
- Line direction and conveyor height.
- Nitrogen, vacuum, UV or temperature requirements if relevant.
- Available space and upstream/downstream station.
- Whether matching conveyor, buffer, loader or unloader is also needed.
Related SMT equipment
Use these links to match this machine with the rest of the SMT line.
Get the right Selective Wave Soldering Machine SM-LII configuration before you buy
Send your PCB size, process target, line direction and station position. If you have photos, drawings or a current defect issue, mention it in the form and we will follow up by email.
Get a configuration recommendation
We usually reply within 1 business day. Your information is used only for quotation and technical communication.
FAQ
Can S&M match this with my current line?
Yes. Send conveyor height, line direction and process requirements so the machine can be checked against your existing equipment.
Can you customize the configuration?
Customization depends on PCB size, process window, line layout and capacity target. We confirm the configuration before quotation.
What makes the quote faster?
Send PCB size, product type, target capacity, process requirement, line direction and a station photo or sketch if available.