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Manual Laser Welding

Laser welding is the use of high-energy laser pulses to localize the heating of the material in a tiny area, the energy of the laser radiation spreads to the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, which can realize spot welding, butt welding, stack welding, sealing welding, etc. It has fast welding speed, flat and beautiful weld, no need to deal with it after welding or only simple treatment, high quality weld, no air holes, can be accurately controlled, small focusing spot, high positioning accuracy, and easy to realize automation.
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

Manual laser welding features-Suntop

Features of Manual laser welding

1. The whole machine has an integrated structure design, the equipment occupies a small space, and is equipped with extra-large swivel casters, making it easy to carry and transport.

2. Comes standard with a variety of welding contact tips to meet a variety of welding needs and can achieve high-precision welding. The welds are small, beautiful and firm, and do not require polishing.

3. The electronic control area is equipped with a cooling fan as standard, which effectively improves the welding stability in high-temperature environments.

5. With visual instruments and water injection ports, the use process can be observed at any time. At the same time, a touch screen control panel is used to make modification of process parameters more intuitive and convenient.

4. The system can store a variety of different process parameters, which can be switched at any time through the touch screen according to processing needs, significantly reducing

5. Use infrared positioning for welding head position calibration and position verification during welding to ensure a more beautiful weld.

6. Has a variety of security alarm functions. The trigger switch is activated only when the soldering copper tip touches the metal and the safety clip clamps the metal plate. After the welding copper nozzle takes out the workpiece, the light will be automatically locked. The safety of the machine is very high, ensuring the absolute safety of the operator when working.

Details of Manual laser welding

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.

Manual laser welding detail-Suntop

Advantages of Manual laser welding

1. The handheld laser welding head is light and flexible, easy to operate, and can meet welding at various angles and positions.

2. Using laser fiber for transmission, it has a long service life, fast welding speed and less consumables.

3. The operation is simple, no professional welder is required, ordinary people can operate it, no training is required, and the requirements for personnel are not high.

4. Handheld laser welding has a high aspect ratio, small weld width, small heat-affected area, small deformation and fast welding speed.

5. The weld is smooth and beautiful. No treatment is required or only simple treatment is required after welding, which reduces the subsequent grinding process and saves time and cost.

6. The weld is of high quality and has no pores, which can reduce and optimize impurities in the base metal. The strength and toughness of the weld is at least equal to or even exceeds that of the base metal.

7. The focused light spot is small, can be accurately controlled, and can be positioned with high precision, making it easy to realize automation.

8. Can realize welding between certain dissimilar materials.

9. Can realize spot welding, butt welding, stack seal welding, etc.

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.

Use of laser welding machine

With the continuous development of laser welding technology, laser welding machines are becoming more and more widely used.

● Welding: The main welding objects of laser welding machines are metals, such as stainless steel, copper, aluminum, gold, silver, titanium, nickel, tin, chromium, niobium, carbon steel, mold steel, galvanized sheets, etc. It is suitable for flat, straight, Arc and arbitrary shape welding, welding work can be carried out from multiple angles to meet users' personalized welding needs.

Manual laser welding welding-Suntop

● Cutting: Welding and cutting are often inseparable. Laser welding machines combine the functions of the two. Laser welding machines can be used to laser cut metal materials, such as copper plates, aluminum plates, stainless steel plates, carbon steel plates, galvanized plates, etc. Meet the cutting needs of conventional thin plates.

Manual laser welding cutting-Suntop

● Cleaning: Cleaning with a laser welding machine is easy and flexible, and can remove rust, oxides, grease, dirt, etc. on the surface of various workpieces. When using a handheld laser welding machine for cleaning, it is necessary to avoid harm to the human body caused by the laser beam.

Manual laser welding cleaning-Suntop

● Weld bead cleaning: 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.

Manual laser welding welding seam cleaning-Suntop

Welding method

There are various welding methods to choose from, allowing for welding at any angle, including overlay welding, butt welding, vertical welding, fillet welding, inside corner welding, outside corner welding, etc. These methods can be used for welding various workpieces, including complex welds and irregularly shaped workpieces, especially larger ones.

Manual laser welding welding method-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 Manual laser 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)




Manual laser welding samples-Suntop





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