The SUNKKO 737U Spot Welding Machine is a professional-grade device designed for battery pack assembly, nickel strip welding, and DIY lithium battery projects. With high-precision control and stable performance, it provides strong, consistent welds for cylindrical cells such as 18650, 21700, and 32700. Its adjustable welding current, user-friendly interface, and robust construction make it suitable for both hobbyists and industrial applications.
Categories:
Battery Management System (BMS)Model: SUNKKO 737U (b307)
Type: Battery Spot Welding Machine
Input Voltage: AC 220V / AC 110V optional depending on region
Output Current: High pulse current for precise spot welding
Power Capacity: Adjustable, up to ~1500W
Welding Thickness: Nickel strips 0.1 mm – 0.3 mm
Welding Modes:
Automatic Mode – continuous welding
Manual Mode – precision welding control
Control Features: Adjustable pulse time and welding current
Display: Digital/LED interface for monitoring
Cooling System: Built-in fan for efficient heat dissipation
Electrodes: Replaceable copper welding tips
Weight: ~5–8 kg
Dimensions: Compact, bench-top design
Safety Features: Overcurrent, overheating, and short-circuit protection
Applications:
Battery pack assembly and repair (18650, 21700, 32700)
Nickel strip welding
DIY battery projects and prototyping
Small-scale industrial battery manufacturing.
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