Sunkko 709AD+ Automatic Pulse Spot Welder 18650 Battery Welding Machine 1.9KW

was $289.99 Special Price $275.49
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Product Location:United States,China
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Sunkko 709AD+ Automatic Pulse Spot Welder 18650 Battery Welding Machine 1.9KW is available to buy in increments of 1
  • 2 in 1 function: battery welding function and soldering function;
  • Applicable welding range: 0.03 - 0.3 mm for Fixed Copper Head; 0.03 - 0.2 mm for Mobile Welding Pen;
  • Welding Current: 500 A; Max. Output power: 1.9 KW.
  • Manual and automatic working modes switch freely.
  • The fan will run when the transformer reach to certain temperature.

When you need precision in your welding, and you work with a lot of small parts, a spot welder may be the right tool for you!

   The Two-in One Spot Welder comes with two options for spot welding. You can either use the stationary welding pins to produce precise welded spots where necessary, or you can use the welding pens, which allow for bigger spaces between points when welding.

  It’s quick, and the current only flows within the space of a second, so the welding is done without any blackening. And it welds evenly because of the stable current that is supplied to the welder. 

    This welding machine allows up to eight different current levels and three pulse settings, providing a versatile spot welder for your various projects!

 One Year Warranty


1. dismode

2. fan


Spot-welder part
Supply Voltage  AC 220 V ± 20 V/110 V
Power 1.9 KW (Instantaneous)    
Current 500 A   
Electric leakage Switch Requirement ≥ 40A
Time of Double Pulse
(Instantaneous Welding Time)
1 ~ 10 ms 
(adjustable, by adjusting the welding current knob)
Time of Four Pulses
(Instantaneous Welding Time)
2 ~ 20 ms (adjustable)
Time of Eight Pulses
(Instantaneous Welding Time)
8 ~ 80 ms (adjustable)
Welding Pin Range 5 - 6 mm
Welding Pressure 300 - 500 g
Welding Distance Adjustable
Suitable Welding Thickness

0.03 - 0.3 mm for Fixed Copper Head

For pure nickel strip: 0.03 - 0.15 mm

0.03 - 0.2 mm for Mobile Welding Pen

Soldering iron part
Temperature 150°C ~ 450°C 
Power 50 W          
Output Voltage 20 V DC


Name Quantity
Spot Welder 1 unit
Welding Pen 1 pcs
Bent Handle Spanner 1 pcs
20 A Fuse 2 pcs
Aluminum Copper
Welding Needle
4 pcs
T12 Iron 1 pcs
Metal Stand 1 pcs
Welding Needle Grinder 1 pcs
Foot Switch 1 pcs
0.1*4*100 mm Nickel Strip 50 pcs
Battery Clamp 1 pcs

1. This spot welder can be used to weld the nickel, nickel plated steel, nickel plated iron, iron and other alloys, but it can't be used to weld metal including copper and aluminum.
2. The welding thickness 0.03 - 0.3 mm indicates the thickness range of all alloy it can be weld, for nickel or nickel plated steel, the range is 0.08 - 0.3 mm.
3. If the spot is not reliable, increase the welding current and the quantity of pulses can improve the welding performance.
4. The requirement of Earth Leakage Circuit Breaker is higher than 40A, it is not recommended to use at home.

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