Product Overview

The SA-350 is Sun & Mountain’s entry-level full-board wave soldering machine, designed for manufacturers who need reliable dual-wave soldering capability in a compact footprint. With a 350mm PCB width capacity, 500kg solder pot, and 70KW total power, it handles both chip-wave and main-wave passes in a single pass — delivering consistent solder joints on through-hole components and mixed SMT+THT assemblies.

The SA-350 is the right choice when your PCB widths consistently fall within 350mm and you need professional wave soldering results without the floor space and investment of a wider machine. It includes a spray fluxer, IR + hot air convection preheating, and adjustable conveyor angle (5–7°) as standard.

Key Highlights

• Dual wave system — chip wave + main wave for complete solder coverage
• 350mm PCB width — compact capacity for small-to-medium boards
• 500kg solder pot — large capacity minimizes refill downtime
• IR + hot air preheat — even temperature distribution before soldering
• Spray flux system — consistent, programmable flux application
• Adjustable conveyor angle — 5–7° for optimized drainage
• Air atmosphere — no nitrogen required, lower operating cost

✅ Best For

• Contract manufacturers with diverse small-board product mix
• Small-to-medium volume through-hole and mixed SMT+THT lines
• Operations where PCB width never exceeds 350mm
• Entry-level wave soldering with full dual-wave capability
• Lines where floor space is at a premium

🔄 How It Compares

• vs SA-450: SA-350 handles narrower boards (350mm vs 450mm), lighter (1700kg vs heavier), smaller footprint — choose SA-350 when you don’t need the extra width
• vs SA-610: SA-610 is for large boards up to 610mm; SA-350 is significantly more compact and lower cost
• vs SM-LII (Selective): SA-350 does full-board wave soldering; SM-LII does point-by-point selective soldering for mixed assemblies where SMT components can’t be submerged