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Laser Handheld Welding Gun

Handheld fiber laser welding machine is a new type of welding method, which has fast welding speed, small deformation, high precision, and beautiful and firm welds. It is mainly used for welding thin-walled materials, precision parts, etc., and can achieve spot welding, butt welding, stack welding, seal welding, etc. It is widely used in the welding of various metal materials and the welding between different metal materials.
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 handheld welding gun teatures-Suntop

Features of laser handheld welding gun

1. Utilize infrared positioning to verify the position of the welding head and confirm the position of the welding process. This results in a more precise welding position, a smooth and aesthetically pleasing weld seam, and facilitates easy grinding and polishing. Additionally, it eliminates the need for extensive treatment processes after welding, or may require only simple treatment.

2. Our self-developed handheld welding head is equipped with various safety alarm devices, ensuring easy and flexible operation.

3. The equipment is furnished with a high precision wire feeder, a touch capacitive screen, a 220V drive, and an automatic wire feeding system. This enables more powerful wire feeding and eliminates the occurrence of wire jamming.

4. Suntop's patented technology water circulation protection system and auxiliary gas detection effectively prolong the lifespan of the laser lens and prevent damage to optical components caused by improper operation.

5. It is equipped with a 10m imported optical fiber, which overcomes the limitations of table space and allows for flexible and convenient usage in outdoor and long-distance welding scenarios.

6. As a standard feature, it is equipped with a variety of welding copper nozzles, including flat, inside, and outside angle nozzles. These can be easily replaced to accommodate different welding requirements and meet various welding needs.

Details of laser handheld welding gun

1. Laser welding head

Light weight only 0.8KG, flexible and convenient to weld any shape of metal parts, adjustable welding seam width, can be 10 meters long distance welding. Equipped with safety temperature monitoring system.

2. Operation interface

Multi-language intelligent control panel, flexible adjustment of welding parameters, multi-group welding parameter library, light output cumulative timing, etc.

3. Automatic wire feeding system

Touch screen design, automatic wire filling, fully digital design, support 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm diameter stainless steel and aluminum wire.

4. Laser Source

We use customized minimum 20um core diameter fiber for deeper penetration, laser life up to 100,000 hours, maintenance-free, with Bluetooth capability.

5. Water Chiller

Double cycle water cooling makes the laser source and welding head cooling better, temperature control sensor adopts imported brand.

6. Welding connection fiber optic

10 meters long fiber optic cable with built-in design effectively avoids damage to the fiber and problems caused by moisture, which greatly increases the service life of the laser components.

laser handheld welding gun detail-Suntop

Advantages of laser handheld welding gun

1. The welding speed is fast, 5-10 times faster than traditional argon arc welding, and the processing cost can be reduced by about 30%.

2. The operation is simple and easy to learn, with no technical threshold requirements. Ordinary workers can operate it after a short-term training, easily achieving high-quality welding results.

3. It is convenient and flexible to use, and the work station can be adjusted at any time. There is no need for a fixed work station, allowing for freedom and flexibility, suitable for various work environment scenarios.

4. It has a wide welding range, overcoming the limitations of the workbench space, and can achieve outdoor welding and long-distance welding.

5. It has multiple welding methods, allowing for welding at any angle, overlay welding, butt welding, vertical welding, fillet welding, inside corner welding, outside corner welding, etc. It can weld complex welds on various workpieces and larger irregular-shaped workpieces.

6. It has concentrated energy, small heat-affected zone, no deformation, no blackening, large welding depth, fine and beautiful welds, and strong and firm welding. The strength of the weld seam can reach or even exceed the strength of the base material itself.

Other optional functions of laser handheld welding gun

● Cleaning function

By replacing the laser nozzle and cleaning lens, the material surface cleaning function can be realized, effectively removing rust spots, oxide layers, oil stains, etc. on the material surface without damaging the surface characteristics. It is non-contact and does not require cleaning fluid, so it can replace professional cleaning equipment.

laser handheld welding gun cleaning-Suntop

Cutting function

Simple cutting is possible, welding and cutting can be switched freely, just change the welding copper nozzle to the cutting copper nozzle, which is very convenient.

It can cut stainless steel, carbon steel, aluminum, aluminum alloy, iron and other metal sheets with a maximum cutting thickness of about 2mm.

laser handheld welding gun cutting-Suntop

Weld bead cleaning function

It can effectively remove oxides, welding slag, oil, dust and other impurities produced during the welding process, making the weld surface clean. This not only helps improve the quality of the weld, but also enhances its strength and appearance. Laser cleaning is highly precise and controllable, thoroughly cleaning the weld surface without damaging the base material.

laser handheld welding gunwelding seam cleaning-Suntop

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.

Welding method

A variety of welding methods are available, allowing for welding at any angle, including stack welding, butt welding, vertical welding, flat angle welding, internal angle welding, external angle welding, and more. These methods can be used to weld various workpieces, including those with complex weld seams and irregular shapes, especially larger workpieces.

laser handheld welding gun welding method-Suntop

Handheld laser welding and argon arc welding comparison

1. Energy consumption comparison: compared with traditional arc welding, handheld laser welding machine saves about 80% to 90% of electrical energy, and processing costs can be reduced by about 30%.

2. Comparison of welding effect: Laser handheld welding can complete the welding between metal and dissimilar metal. Fast speed, small deformation, small heat-affected zone. The welding seam is beautiful, flat, without/less porosity and no pollution. Handheld laser welding machine can perform tiny open parts and precision welding.

3. Comparison of subsequent processes: Handheld laser welding with low heat input and small deformation of the workpiece can result in a beautiful welded surface without or with only a brief treatment (depending on the welded surface effect requirements). Handheld laser welding machine can greatly reduce the huge polishing and leveling process consuming labor costs.

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 handheld welding gun









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 handheld welding gun samples-Suntop





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