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Laser Welding Machine for Lithium Ion Batteries

Handheld laser welding machine uses a handheld welding gun, overcoming the limitations of workspace on the workbench. There are no restrictions during welding, and it can meet the welding requirements of multiple angles and directions. It can complete the welding of workpiece positions, workpiece parts, and narrow spaces where automatic welding is not possible, providing higher flexibility.
Product Model: ST-FW1500H/ST-FW2000H/ST-FW3000H
Laser power: 1500W/2000W/3000W
Single maximum welding thickness: 0.5-8mm

Details        Product Parameters        Samples       Video

laser welding machine for lithium ion batteries features-Suntop

Features of laser welding machine for lithium ion batteries

1. It adopts a fully enclosed optical path design, with advantages such as dustproof and good sealing; it can work continuously for a long time (up to 24 hours).

2. The self-developed Wobble welding head is small, lightweight, and easy to operate.

3. It has multiple safety alarm functions. The switch is only activated when the welding copper head contacts the metal, and the safety clamp clamps the metal plate. After removing the welding copper nozzle from the workpiece, the light will automatically lock. The machine has a very high level of safety, ensuring absolute safety for operators during work.

4. It uses infrared positioning to verify the position of the welding head during the welding process. The welding position is more accurate, the weld is smooth and beautiful, easy to polish, and no post-welding treatment is required or only simple treatment is needed.

5. It is equipped with various nozzles for multiple functions such as welding, cutting, and cleaning.

Details of laser welding machine for lithium ion batteries

1. Laser welding head

Lightweight, only 0.8KG, flexible and convenient for welding metal parts of any shape, adjustable weld width, capable of long-distance welding up to 10 meters. Equipped with a safety temperature monitoring system.

2. Operation interface

Multilingual intelligent control panel, flexible adjustment of welding parameters, multiple sets of welding parameter libraries, cumulative timing of light output, etc.

3. Automatic wire feeding system

Touch screen design, automatic wire filling, fully digital design, supports stainless steel and aluminum wires with diameters of 0.8mm, 1.0mm, 1.2mm, 1.6mm, and 2.0mm.

4. Laser source

We use custom-made fiber with a minimum core diameter of 20um, which has deeper penetration depth and a laser lifespan of up to 100,000 hours. It is maintenance-free and has Bluetooth functionality.

5. Chiller

Dual-cycle water cooling system provides better cooling for the laser source and welding head. The temperature control sensor uses imported brands.

6. Welding connection fiber

The 10-meter-long optical cable adopts an integrated design, effectively avoiding damage to the fiber and problems caused by moisture, greatly improving the service life of the laser components.

laser welding machine for lithium ion batteries detail-Suntop

Advantages of laser welding machine for lithium ion batteries

1. High work efficiency: Laser has a small focus spot, high power density, fast welding speed, and stable and reliable product quality, which can achieve large-scale automated welding tasks.

2. Various welding methods: such as spot welding, seam welding, butt welding, etc. Different welding methods can achieve different welding effects, and suitable welding methods can be selected according to the characteristics of the workpiece, such as its nature and shape.

3. Good welding effect: Laser welding has small but deep welds, fast melting speed, small heat-affected zone, and low deformation. The welded workpiece is smooth and beautiful, which meets the high-quality requirements of modern people.

4. Wide welding range: Laser welding machines can achieve precision welding of various materials, especially for some difficult-to-weld materials. They can quickly melt different types of metal materials. They can not only weld precision components but also weld large and irregular workpieces to meet different welding needs.

5. Great flexibility: There is no restriction on the position of the weld, and it can reach difficult-to-weld parts or local positions. Precise welding can be achieved through accurate positioning.

6. Long service life: The machine has low operating costs and a long service life of up to 100,000 hours. It is maintenance-free, installation-free, and training-free. It is a very practical welding equipment.

Single side weld thickness

Maximum melting




Stainless steel   (mm)




Mild steel (mm)




Aluminum (mm)




Brass/copper (mm)




Galvanized sheet   (mm)




Iron (mm)




Remark: Double weld thickness can be achieved if the material is welded from both sides in two times.

The main use of handheld fiber laser welding machine

1. Welding

The main purpose of a laser welding machine is undoubtedly welding. It can weld almost all metal materials and can perform welding in various complex environments. It has high production efficiency and has more advantages compared to traditional processes such as argon arc welding and electric welding. When welding, it has higher production efficiency and more obvious advantages compared to traditional processes such as argon arc welding and electric welding. Using a laser welding machine, the weld seam width is small, the depth is large, the heat-affected zone is small, the deformation is small, the weld seam is smooth and beautiful, the welding quality is high, there are no pores, it can be precisely controlled, the welding quality is stable, and no post-weld treatment or simple treatment is required.

laser welding machine for lithium ion batteries welding-Suntop

2. Cleaning

With the continuous reform and upgrading of laser welding machines, they have more and more functions. They can not only weld and cut, but also clean and remove rust. Laser welding machines use laser beams to eliminate the contamination layer on the surface of the processed workpiece. Cleaning with a laser welding machine has the advantage of being non-contact and does not require cleaning fluid, which can replace professional cleaning equipment.

laser welding machine for lithium ion batteries cleaning-Suntop

3. Cutting

Laser cutting is a new type of cutting method. Using a laser welding machine, it can cut stainless steel, carbon steel, aluminum, aluminum alloy, iron, and other metal sheets, with a maximum cutting thickness of about 2mm.

laser welding machine for lithium ion batteries cutting-Suntop

4. Weld seam cleaning

In addition to the above three functions, our laser welding machine can also clean weld seams. Laser cleaning can effectively remove impurities such as oxides, welding slag, oil stains, and dust generated during the welding process, making the weld seam surface clean. This not only helps improve the quality of the weld seam but also enhances its strength and appearance. Laser cleaning has high precision and controllability, and can thoroughly clean the surface of the weld seam without damaging the base material.

laser welding machine for lithium ion batteries welding seam cleaning-Suntop

Welding method

There are various welding methods to choose from, which allow for welding at any angle. These methods include overlay welding, butt welding, vertical welding, fillet welding, inside corner welding, outside corner welding, and more. These methods can be used to weld various workpieces, including complex welds and irregularly shaped workpieces, particularly larger ones.

laser welding machine for lithium ion batteries welding method-Suntop

Application materials

Suitable for stainless steel, carbon steel, copper, aluminum, gold, silver, chromium, nickel, titanium and many other metals and alloys; also can be used for welding between a variety of dissimilar materials.

Application industry

Suitable for all kinds of sheet metal, moulds, chassis, power distribution cabinets, kitchen and bathroom products, all kinds of hardware lighting, advertising signs, door and window frames, handicrafts, household products, food machinery, medical equipment, auto parts and other industries.

Parameters of laser welding machine for lithium ion batteries









Welding   gun weight




Max.   welding thickness (mm)




Max.   welding seam width (mm)




Laser type

Fiber laser   (Suntop custom 20um welding exclusive)

Laser detection method

Bluetooth wireless   connection, Mobile App Monitoring

Control panel language support

English,   Spanish, German, French, Turkish, Italian, Russian,

Vietnamese, Thai, Korean, Japanese, etc.

Laser wavelength (nm)


Suitable welding materials

Carbon   steel, stainless steel, aluminum, galvanized sheet metal,

brass, iron and other metal materials

Adapted welding methods

Spot   welding, overlap welding, splice welding, fillet welding,

lap welding etc.

Laser power adjustment range (%)


Cooling method

Advanced   water-cooling, dual temperature control and automatic


Welding aiming preview method

Built-in Red-Light pointer

Protection systems

Air pressure sensor and solenoid valve   control

Length of fiber optic cable (meter)

Standard 10 (can be customized 15)

Welding shielding gas

Argon or nitrogen (air pressure approx. 6-8   bar)

Working environment

Temperature 5-45 °C /humidity 10-90%

Other   optional support functions

Cleaning   + cutting

Cleaning   + cutting

Cleaning   + cutting + weld bead cleaning

Max.   Cutting thickness (mm)




Max. cleaning width (mm)




Automatic wire   feeder type

(Universal   with TIG wire)

Single wire feed

Single wire feed

Support both the double wire feed and single wire feed

Solid wire type (SS, Iron, AL, Brass)

0.8, 1.0, 1.2, 1.6

0.8, 1.0, 1.2, 1.6

0.8, 1.0, 1.2, 1.6, 2.0, 2.5

Temperature control monitoring alarm




Main machine consumables

Laser protective lenes, welding nozzles, welding wires

Machine size (MM)




Machine net weight (KG)




Power supply requirement

110V / 220V±10%, single phase

380V±10%, three phase

Total power consumption (Maximum)




laser welding machine for lithium ion batteries samples-Suntop





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