Spot Welding Machine - FNIRSI SWM-20 Handheld Spot Welding Machine, 1 200 A, Black
Product reference: 14-5905156108134

A handheld spot welder with a maximum welding current of 1,200 A. It operates in double pulse mode, has more than 10,000 setting levels, a 2.4-inch color TFT display, a 5,000 mAh battery, USB-C charging, and removable copper welding tips for welding nickel, iron, and stainless steel.

Spot Welding Machine - FNIRSI SWM-20 Handheld Spot Welding Machine, 1 200 A, Black

Product reference: 14-5905156108134

A handheld spot welder with a maximum welding current of 1,200 A. It operates in double pulse mode, has more than 10,000 setting levels, a 2.4-inch color TFT display, a 5,000 mAh battery, USB-C charging, and removable copper welding tips for welding nickel, iron, and stainless steel.

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FNIRSI SWM-20 handheld spot welder, 1,200 A, black


Handheld spot welder with a maximum welding current of 1,200 A. It operates in double pulse mode and has more than 10,000 power adjustment levels for welding nickel, iron and stainless steel. Equipped with a 2.4-inch color TFT display, 5,000 mAh battery, USB-C charging and removable copper welding tips.


  • The manual FNIRSI SWM-20 spot welding machine, with a maximum current of 1,200 A, ensures clean and strong welds.
  • Dual pulse technology and precisely regulated power help you work with battery packs and thin metal materials.
  • The 2.4-inch color TFT display and rotary control allow you to conveniently monitor and adjust settings in real time.
  • A portable 5,000 mAh battery, USB-C charging, and external battery function ensure convenient use in the workshop and outdoors.

Product information

Product type Manual spot welding machine
Brand FNIRSI
Model SWM-20
Color Black

Technical specifications

Maximum welding current 1,200 A
Welding technology Double pulse mode
Number of adjustment levels More than 10,000
Suitable materials Nickel, iron, stainless steel, steel and copper strips
Suitable material thickness 0.1-0.5mm
Number of preset combination levels 4
Screen 2.4 inch color TFT display
Controls Rotary adjustment wheel

Power and connections

Battery capacity 5,000mAh
Charging USB-C, 5V/2.1A
USB output 5V / 2.1A
Additional function External battery function
Firmware updates Supported via USB-C connector
Number of welding jobs per charge Up to 1,500 welds

Construction and protection

Welding tips Removable tips with 99.9% pure copper contact points
Security features Protection against overheating, undervoltage, overcharge, overdischarge, short circuit, voltage fluctuations, low temperature and shock
Auto-off timer Adjustable from 0 to 99 minutes

Included accessories

Included
  • Spot welding machine
  • Welding tips
  • Spare tips
  • USB-C cable
  • Nickel strip
  • User manual

Safety warning

Warning Use only for spot welding of suitable metal strips and thin metal materials. The welding tips and the materials to be joined become hot during use, therefore wear suitable protective equipment, avoid contact with skin and flammable materials and ensure adequate ventilation. Follow the instructions in the user manual and keep the device out of the reach of children. Do not use the device if the battery, cables or housing are damaged.

Height150mm
Length400mm
Weight1800g
Width250mm
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