Spot-welding-machie

Battery Spot Welding Machine

Energy Storage Spot Welding Machine

Energy storage spot welding machine is a device that uses energy storage capacitors to discharge heat and achieve spot welding connection of metal parts. It is widely used in fields such as battery manufacturing, electronic components, and automotive parts.

Comparison Dimension

Energy Storage Spot Welder

Traditional AC/DC Spot Welder

Energy Source Energy storage capacitor discharge (pulse-type): Stores energy from the grid into capacitors through slow charging and releases pulsed energy instantly during welding. Direct grid power supply (continuous-type): Draws power from the grid continuously during welding, relying on stable grid voltage.
Welding Time Millisecond-level (1–100 ms): Completes welding in ultra-short time with extremely low heat input. Hundreds of milliseconds to seconds: Relatively slow welding process with obvious heat accumulation.
Heat-Affected Zone (HAZ) Small: Concentrated energy and short action time result in narrow welds and minimal thermal deformation, suitable for precision components. Larger: Continuous heating may cause local high temperatures in workpieces, potentially leading to deformation or annealing.
Grid Impact Low: Stable current during charging (e.g., phased charging), and short-duration pulsed current during welding causes minimal grid fluctuations. High: Instantaneous high current (up to tens of thousands of amperes) during welding may cause sudden drops in grid voltage, requiring a dedicated power distribution system.
Application Scenarios Thin-walled parts (e.g., 0.1–2 mm metal foils, electronic component leads), high-precision requirements (e.g., lithium battery tab welding), automated production lines (compatible with high-speed welding robots). Thick plate welding (e.g., steel plates over 3 mm), non-continuous production scenarios (e.g., maintenance, small-batch processing), and occasions with low requirements for welding speed.
https://www.heltec-energy.com/battery-spot-welding-machine/
heltec-spot-welder-sw02-application

Heltec Full Range of Spot Welder

Battery Spot Welder 01 Series

HT-SW01A

HT-SW01A+

HT-SW01B

HT-SW01D

HT-SW01H

Battery Spot Welder 02/03 Series

HT-SW02A

Battery-spot-welder

HT-SW02H

HT-SW03A

HT-SW33A

HT-SW33A

HT-SW33A++

Laser Welding Machine

Laser-welder

Cantilever Laser Welding Machine

Laser-welder

Handheld Laser Welding Machine

Handheld Laser Welding Machine

Spot welder Accessories - Spot Welding Head

Battery-spot-welder-head

Pneumatic Flat Welding Head

Battery-spot-welder-head
Battery-spot-welder-head

Pneumatic Butt Welding Head

Technical advantages

Energy saving and efficient: Low instantaneous power consumption from the power grid, high power factor, minimal impact on the power grid, and energy-saving.

Good welding quality: The welding points are firm, without discoloration, saving polishing process and high efficiency; The output voltage is stable and has good consistency, which can ensure the consistency of the welding product effect.

Long electrode life: Compared to traditional spot welding machines, the electrode life can be extended by more than twice, reducing the cost of use.

Strong adaptability: Widely applicable to welding materials, suitable for non-ferrous metals and alloy materials such as copper, aluminum, stainless steel, nickel, etc; Has good adaptability to work pieces of different thicknesses and shapes.

Model Selection Table

SKU

HT-SW01A

HT-SW01A+

HT-SW01B

HT-SW01D

HT-SW01H

HT-SW02A

HT-SW02H

HT-SW03A

HT-SW33A

HT-SW33A+

Principle

DC energy storage

DC energy storage

DC energy storage

DC energy storage

DC energy storage

DC energy storage

DC energy storage

AC transformer

DC energy storage

DC energy storage

Output Power

10.6KW

11.6KW

11.6KW

14.5KW

21KW

36KW

42KW

6KW

27KW

42KW

Output Current

2000A (Max.)

2000A (Max.)

2000A (Max.)

2500A (Max.)

3500A (Max.)

6000A (Max.)

7000A (Max.)

1200A (Max.)

4500A (Max.)

7000A (Max.)

Standard Welding Tools

1.70A(16mm²) split welding pen;
2.Metal butt welding seat.

1.70B(16mm²) integrated welding pen;
2.73SA Press down spot welding head.

1.70B(16mm²) integrated welding pen;
2.73SA Press down spot welding head.

1.73B(16mm²) integrated welding pen;
2.73SA Press down spot welding head.

1.75 (25mm²) split welding pen;
2.73SA Press down spot welding head.

75A(35mm²) split welding pen

1. 75A(50mm²) split welding pen
2.Milliohm resistance measuring pen

1.73B16mm²integrated welding pen;
2.A30 Pneumatic spot welding device.

A30 Pneumatic spot welding device.

A30 Pneumatic spot welding device.

Pure nickel welding
18650 thickness

0.1~0.15mm

0.1~0.15mm

0.1~0.2mm

0.1~0.3mm

0.1~0.4mm

0.1~0.5mm
+73B 25mm²

0.1~0.5mm
+73B 25mm² - one meter long

0.1~0.2mm

0.15~0.35mm

0.15~0.35mm

Nickel plating welding
18650 thickness

0.1~0.2mm

0.1~0.25mm

0.1~0.3mm

0.15~0.4mm

0.15~0.5mm

0.1~0.6mm
+73B 25mm²

0.1~0.6mm
+73B 25mm² - one meter long

0.1~0.3mm

0.15~0.45mm

0.15~0.45mm

Pure nickel welding
LFP aluminum electrode

/

/

/

/

/

0.1~0.2mm

0.1~0.3mm

/

0.1~0.2mm

0.1~0.2mm

Nickel aluminum composite sheet welding
LFP aluminum electrode

/

/

/

/

0.1~0.15mm

0.1~0.2mm

0.15-0.4mm

/

0.1~0.3mm

0.1~0.3mm

Copper welding  LFP Copper electrode (with flux)

/

/

/

/

/

0.1~0.3mm

0.15~0.4mm

/

0.1~0.3mm

0.1~0.3mm

Power Supply

AC 110~220V
(general)

AC 110~220V
(general)

AC 110~220V
(general)

AC 110~220V
(general)

AC 110~220V
(general)

AC 110 or 220V
Optional

AC 110 or 220V
Optional

AC 110 or 220V
Optional

AC 110 or 220V
Optional

AC 110 or 220V
Optional

Output Voltage

DC 5.3V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

DC 6.0V(Max.)

Energy Storage Charging Current

2.8A(Max.)

2.8A(Max.)

4.5A(Max.)

4.5A(Max.)

6A(Max.)

15A(Max.)

15A(Max.)

No charging required

15A -20A

15A -20A

First Charging Time

30~40 min

30~40 min

30~40 min

30~40 min

About 18 min

About 18 min

About 18 min

No charging required, plug in to use

About 18 min

About 18 min

Trigger Mode

AT: Automatic induction trigger

AT: Automatic induction trigger

AT: Automatic induction trigger
MT: Foot pedal trigger

AT: Automatic induction trigger
MT: Foot pedal trigger

AT: Automatic induction trigger
MT: Foot pedal trigger

AT: Automatic induction trigger
MT: Foot pedal trigger

AT: Automatic induction trigger
MT: Foot pedal trigger

MT: Foot pedal trigger

MT: Foot pedal trigger

MT: Foot pedal trigger

On-resistance/Nickel Sheet Resistance Measurement Function

×

×

×

×

×

×

×

×

×

Voltage Test Function

×

×

×

×

×

×

×

×

×

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Battery-spot-welder
heltec-spot-welder-sw02a
Battery-spot-welder

Battery Spot Welding Machine Application Area

  • Spot welding of Lithium iron phosphate battery,Ternary lithium battery,nickel steel.
  • Assemble or repair battery packs and portable sources.
  • Production of small battery packs for mobile electronic devices
  • Welding of lithium polymer battery,cellphone battery,and protective circuit board.
  • Spot welding leaders to different metal projects,such as iron,stainless steel,brass,nickel,molybdenum and titanium.

Contact Us

If you have purchasing intentions or cooperation needs for our products, please feel free to contact us at any time. Our professional team will be dedicated to serving you, answering your questions, and providing you with high-quality solutions.

Jacqueline: jacqueline@heltec-bms.com / +86 185 8375 6538

Nancy: nancy@heltec-bms.com / +86 184 8223 7713