Home / Products / Laser Cleaner Machine / Laser Cold Welding


Share to:
sharethis sharing button

Laser Cold Welding

The integrated machine design occupies a small area and is flexible and convenient to move. The welding gun is compact and easy for welders to use. The integrated fiber laser and adjustable spot swing welding head can adapt to more weld gap requirements and safety alarm prompts. It has a compact structure and a wide range of applications, suitable for welding in various occasions; it improves equipment utilization, improves welding efficiency, and reduces costs.
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 cold welding features-Suntop 

Features of laser cold welding

1. Closed design, based on the principles of laser technology, self-designed for a more reasonable structure, dustproof, good heat dissipation, effectively extending the service life of machine components.

2. The independently developed handheld welding head is equipped with multiple safety alarm devices for convenient and flexible operation.

3. Equipped with a 10-meter original fiber optic cable, overcoming the limitations of workspace, enabling outdoor welding and long-distance welding cleaning.

4. The machine has multiple safety alarm functions. The welding nozzle switch is only effective when it touches the metal and securely clamps the metal sheet. The welding nozzle automatically locks the light after moving away from the workpiece. The machine has high safety to ensure absolute safety for operators during work.

5. Our machine has dual protection functions for water and gas circuits (patented technology), effectively avoiding damage to laser lenses or optical components caused by operator error, greatly reducing machine failure rate and extending the life of consumables.

Details of laser cold welding

1. Laser cleaning head

Weighing only 0.8KG, it can flexibly and conveniently weld metal parts of any shape, with adjustable weld seam width and the ability to weld at a distance of 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 feeding, fully digital design, supports stainless steel wire and aluminum wire with diameters of 0.8mm, 1.0mm, 1.2mm, 1.6mm, and 2.0mm.

4. Laser source

Using customized optical fiber, with a minimum core diameter of 20um, it has stronger penetration power and a laser lifespan of up to 100,000 hours. It is maintenance-free and has Bluetooth functionality.

5. Water cooling device

Dual-cycle water cooling system for cooling the laser source and welding head, with temperature control sensors using imported brands.

6. Welding connection fiber

Built-in 10-meter-long optical cable design, effectively avoiding fiber damage and moisture problems, greatly improving the service life of the laser equipment.

laser cold welding detail-Suntop

Advantages of laser cold welding

1. High work efficiency: The laser focus spot is small, the power density is high, the welding speed is fast, the quality of the welded products is stable and reliable, and large-volume automated welding tasks can be realized.

2. Various welding methods: There are many welding methods used, such as spot welding, splice welding, butt welding, etc. Different welding can achieve different welding effects, and the appropriate welding method can be selected according to the properties, shape and other characteristics of the workpiece.

3. Good welding effect: Laser welding seams are small but have large depth, fast melting speed, small heat-affected zone, small deformation, and the welding workpiece is smooth and beautiful, which is more in line with the high-quality requirements of modern people.

4. Wide welding range: It can achieve precision welding of a variety of materials, especially for some materials that are difficult to weld, and can quickly melt different types of metal materials.

5. High flexibility: There is no limit on the position of the welding seam. It can access difficult-to-weld parts or local locations, and complete precise welding through precise positioning.

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

The main use of laser cold welding

1. Welding

The main purpose of the laser welding machine is undoubtedly welding, welding almost all metal materials, welding in a variety of complex environments can be well completed welding, high productivity, more obvious advantages than the traditional argon arc welding, electric welding and other processes. Welding, high productivity, more obvious advantages than the traditional argon arc welding, electric welding and other processes.

With the laser welding machine, the weld width is small, the depth is large, the thermal shock area is small, the deformation is small, the weld is flat and beautiful, the welding quality is high, no air holes, can be precisely controlled, the welding quality is stable, and there is no need to deal with it after welding or it can be simply dealt with.

laser cold welding-Suntop

2. Cleaning

With the continuous reform and replacement of the laser welding machine, more and more functions, not only welding and cutting, but also cleaning and rust removal, laser welding machine using the laser beam emitted, so that the surface of the workpiece to be processed by the elimination of the contamination layer. The use of laser welding machine for cleaning, with no contact characteristics, do not need cleaning fluid, can replace the professional cleaning equipment.

laser cold welding cleaning-Suntop

3. Cutting

Laser cutting is a new type of cutting, the use of laser welding machine can cut stainless steel, carbon steel, aluminum, aluminum alloy, iron and other metal sheet, the maximum cutting thickness of about 2mm.

laser cold welding cutting-Suntop

4. Welding seam cleaning

In addition to the above three functions, our laser welding machine can also clean the weld seam. Through laser cleaning, it can effectively remove oxides, welding slag, oil, dust and other impurities generated during the welding process, making the surface of the weld seam clean. This not only helps to improve the quality of the weld, but also enhances the strength and appearance of the weld. Laser cleaning is highly accurate and controllable, allowing the weld surface to be thoroughly cleaned without damaging the base metal.

laser cold welding 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.

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 cold welding









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 cold welding samples-Suntop




Related Products

More than 10 precision production line, easy to realize large quantities of goods, to provide you with the best price.
Contact Us
  No 317, Mu Dong RD, Wu Zhong DIST, Suzhou City, Jiangsu Province, China
  +86 13771746401


Quick Links

© 2023 Suzhou Suntop Laser Technology Co., Ltd  All rights reserved.