Product Overview

The KL-460 is Sun & Mountain’s compact inline curing oven designed for SMT production lines requiring precise thermal processing within a 460mm PCB width. It uses hot air convection heating to deliver uniform temperature distribution across the full board width, ensuring consistent cure of adhesives, underfill materials, and conformal coatings without cold spots or overheating.

With a temperature range of 50–300°C and uniformity of ±5°C, the KL-460 handles a wide range of curing applications. Its adjustable conveyor speed (200–2000 mm/min) allows fine-tuning of cure time to match your specific material and profile requirements. The compact footprint makes it well suited for smaller production lines or as a secondary curing station alongside a primary oven.

Key Highlights

• 460mm max PCB width — fits compact and mid-size production lines
• 50–300°C temperature range — handles all standard SMT curing applications
• ±5°C temperature uniformity — consistent cure across full board width
• Hot air convection heating — even heat distribution, no IR hot spots
• 200–2000 mm/min conveyor speed — flexible cure time adjustment
• ~15 KW power — energy-efficient for its capacity
• Compact footprint — fits tight production floor layouts

Adhesive Curing

Before wave soldering, SMD components must be bonded to the board with epoxy adhesive. The KL-460 cures these adhesives inline at the specified temperature profile, ensuring components remain fixed during the solder wave pass.

Underfill Curing

After dispensing underfill beneath BGA, flip-chip, or CSP packages, the KL-460 applies the cure cycle to harden the encapsulant. Proper underfill cure improves mechanical strength and thermal cycling reliability.

Conformal Coating Cure

Thermally-activated conformal coatings benefit from a controlled oven cure to achieve full hardness. The KL-460’s precise temperature control ensures coatings cure completely without over-baking or bubbling.

✅ Best For

• Small-to-medium SMT production lines
• PCBs up to 460mm wide
• Secondary curing stations alongside a larger primary oven
• Operations with mixed curing requirements (adhesive, underfill, conformal)
• Lines where floor space is limited

🔄 KL-460 vs KL-600

• PCB width: KL-460 handles up to 460mm; KL-600 handles up to 600mm
• Power: KL-460 uses ~15 KW vs ~20 KW for the KL-600 — lower operating cost for narrower boards
• Footprint: KL-460 is more compact — ideal when floor space is constrained
• Choose KL-600 if your PCBs exceed 460mm width or you need higher throughput