SKU:SWM-20
Manufacturer: FNIRSI
SWM-20 Battery Spot Welder 1200A 0.1-0.5mm 10k Steps
Image is for illustrative purposes only
The SWM-20 is a high-efficiency portable spot welder that utilizes dual-pulse technology to ensure stable and reliable welding results. It is equipped with a 2.4-inch TFT color display for clear data monitoring and a rotary encoder knob for precise parameter adjustments. With a peak current output of 1200A, it provides consistent performance across various materials.

This device supports a wide range of materials with thicknesses between 0.1mm and 0.5mm. Specifically, it handles nickel-plated steel up to 0.4mm, steel up to 0.5mm, pure nickel up to 0.25mm, iron up to 0.3mm, and copper or nickel-plated copper up to 0.1mm. It offers over 10,000 fine adjustment levels, allowing users to match power settings to specific material requirements. Parameters such as preheat, pulse, and intervals are fully adjustable.

Powered by 5000mAh battery cells, the welder supports up to 1,500 welding cycles per charge. Its 2-in-1 functionality allows it to serve as a USB power bank with a 5V/2.1A output. Safety is managed by an 8-in-1 smart protection system covering over-temperature, short-circuit, and over-discharge. The device also supports firmware upgrades via USB-C to ensure long-term performance improvements.
Battery Capacity: 5000mAh
Charging: 5V / 2.1A
Discharging (Power Bank): 5V / 2.1A
Welding Materials: Nickel, Iron, Stainless Steel
Welding Thickness: 0.1–0.5 mm
Max Welding Current: 1200A
Adjustment Levels: 4 Preset Combination Levels; 10,000+ Ultra-Fine Levels
Display: 2.4” TFT Color Display
Welding Cycles: Up to 1,500 per charge
Safety Features: 8-in-1 smart protection system
Charging Port: Type-C
In the box: SWM-20 Host
Welding Pens
Replacement Tips
USB-C Cable
Nickel Strip
User Manual

In the same category