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Laser Welding Transmission

Laser welding uses high-energy laser pulses to locally heat the material in a small area, diffuses into the interior of the material through heat conduction, and melts the material to form a specific molten pool and form a weld or solder joint. Handheld welding head to overcome the limitations of the workbench. The handheld welding gun can weld any part of the workpiece at any angle. It has high photoelectric conversion rate and low energy consumption, and can save a lot of processing costs with long-term use.
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 transmission features-Suntop

Features of laser welding transmission

1. Use infrared positioning to verify the position of the welding head and ensure the accuracy of the welding process. This results in a more precise welding position, smoother and more aesthetically pleasing weld seam, and easier grinding and polishing. Additionally, it eliminates the need for extensive treatment after welding, or may only require a simple treatment process.

2. The handheld welding head is self-developed and includes various safety alarm devices, making it easy and flexible to operate.

3. It is equipped with a high precision wire feeder, touch capacitive screen, 220V drive, and automatic wire feeding, allowing for more powerful wire feeding without the risk of wire jamming.

4. Suntop's patented technology includes a water circulation protection system and auxiliary gas detection, effectively prolonging the life of the laser lens and preventing damage to optical components caused by improper operation.

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

6. It comes standard with a variety of welding copper nozzles, including flat, inside, and outside angle nozzles. Different nozzles can be replaced according to different welding needs, ensuring versatility and meeting various welding requirements.

Details of laser welding transmission

1. Laser welding head

Light weight only 0.8KG, flexible and convenient to weld any shape of metal parts, adjustable welding seam width, can carry out 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, supporting stainless steel and aluminum wire of 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm diameter.

4. Laser Source

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

5. Water Cooler

Double circulation water cooling makes the laser source and weld head cooler, temperature control sensor adopts imported brand.

6. Welding connection fiber

10 meters long fiber optic cable built-in design, effectively avoid damage to the fiber and the problems caused by moisture, greatly improving the service life of the laser device.

laser welding transmission detail-Suntop

Advantages of laser welding transmission

1. The welding speed is fast, being 5-10 times faster than traditional argon arc welding, which can reduce processing costs by about 30%.

2. It is easy to learn and operate, with no technical threshold requirements. Ordinary workers can operate it after a short training, making it easy to achieve high-quality welding results.

3. It is easy to use and flexible, allowing for the adjustment of the work station at any time. There is no need to fix the work station, making it free and flexible. It is suitable for a variety of work environment scenarios for welding.

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

5. It offers multiple welding methods, allowing for any angle welding, stack welding, butt welding, vertical welding, flat angle welding, internal angle welding, external angle welding, etc. It can handle a variety of complex welding seam workpieces and larger workpieces with non-regular shapes.

6. It provides concentrated energy, resulting in a small heat-affected area. There is no deformation or blackening, and it offers a large welding depth and a fine and beautiful weld seam. The welding is solid, and the weld strength reaches or even exceeds the strength of the base material itself.

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.

Other optional functions

●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 welding transmission 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 welding transmission 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 welding transmission welding seam cleaning-Suntop

Application materials

It can be used for welding stainless steel, carbon steel, copper, aluminum, gold, chromium, silver, titanium, nickel and other metals or alloys. It can also be used for various welding between different materials, including copper – brass, titanium-molybdenum, titanium- gold, nickel-copper, etc.

Application industry

Widely used in sheet metal processing, chassis, water tanks, distribution boxes and other cabinets, door and window guardrails, advertising signs, battery components, steel furniture, electronic appliances, metal molds, auto parts, instruments, mobile communications, medical equipment and other industries.

Parameters of laser welding transmission









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 transmission samples-Suntop





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