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4-in-1 Handheld Laser Welding Machine

Laser welding machine is a thermal processing technology that uses a laser beam to generate high energy and high temperature conditions to heat the processed material within a small range. The high temperature environment can melt and weld two or more workpieces together, achieving spot welding, butt welding, overlay welding, and seal welding, etc.
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

4-in-1 handheld laser welding machine features-Suntop

Features of 4-in-1 handheld laser welding machine

1. During the welding process, infrared positioning is used for welding position calibration and verification. The welding position is more accurate and the weld seam is more beautiful.

2. Equipped with a high-precision wire feeder with a touch capacitive screen, 220V drive, automatic wire feeding, stronger wire feeding, and no wire jamming.

3. Independently developed handheld welding torch, lightweight and delicate, easy to operate, and capable of welding at any angle.

4. Equipped with a 10m imported optical fiber, overcoming the limitation of workspace, allowing for flexible and convenient outdoor and long-distance welding.

5. It has multiple safety alarm functions. The welding torch is only effective when it comes into contact with metal and the trigger switch is activated, and the torch automatically locks and moves away from the workpiece. The machine has high safety to ensure the absolute safety of operators during work.

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

Details of 4-in-1 handheld laser welding machine

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.

4-in-1 handheld laser welding machine detail-Suntop

Advantages of 4-in-1 handheld laser welding machine

1. The operation is flexible and simple, with no technical threshold requirements. Ordinary workers can be trained for a short period of time to be able to work, meeting the requirements for welding from multiple angles and positions.

2. The weld seam is smooth and beautiful, requiring no secondary grinding or minimal follow-up grinding after welding.

3. Various welding processes are available, such as spot welding, seam welding, lap welding, flat welding, inner corner welding, outer corner welding, ring welding, and top welding.

4. The workstation can be adjusted at any time, without the need for a fixed workstation, allowing for freedom and flexibility, suitable for welding in various work environments.

5. Low usage cost, with low consumption of electricity, gas, and lenses.

6. The affected area of the welding is small, causing no deformation or blackening, with a large welding depth, firm welding, and sufficient melting.

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.

Uses of laser welding machine

1. Welding: The main objects of laser welding machine are metals, such as stainless steel, copper, aluminum, gold, silver, titanium, nickel, tin, chromium, niobium, carbon steel, mold steel, galvanized sheet, etc. It is suitable for welding flat, straight, curved, and any shape, and can perform welding work at multiple angles to meet the personalized welding needs of users.

4-in-1 handheld laser welding machine welding-Suntop

2. Cutting: Welding and cutting often go hand in hand, and the laser welding machine combines the functions of both. The laser welding machine can be used for laser cutting of metal materials, such as copper plate, aluminum plate, stainless steel plate, carbon steel plate, galvanized sheet, etc., to meet the cutting needs of conventional thin plates.

4-in-1 handheld laser welding machine cutting-Suntop

3. Cleaning: The use of laser welding machine for cleaning is convenient and flexible. It can remove rust, oxide, and oil stains on various workpiece surfaces. When using a handheld laser welding machine for cleaning, it is necessary to avoid the laser beam shining on the human body to cause harm.

4-in-1 handheld laser welding machine cleaning-Suntop

4. Weld seam cleaning: It can effectively remove impurities such as oxides, welding slag, oil stains, and dust generated during the welding process, making the surface of the weld seam clean. This not only helps improve the quality of the weld seam, but also enhances the strength and appearance of the weld seam. Laser cleaning has high precision and controllability, and can thoroughly clean the surface of the weld seam without damaging the base material.

4-in-1 handheld laser welding machine welding seam cleaning-Suntop

Welding method

A wide range of welding methods are available for welding at any angle. These methods include overlay welding, butt welding, vertical welding, fillet welding, internal fillet welding, and external fillet welding. These methods can be used to weld a variety of workpieces, including complex welds and irregularly shaped workpieces, especially larger ones.

4-in-1 handheld laser welding machine welding method-Suntop

Application materials

Suitable for stainless steel, copper, aluminum, gold, chromium, silver, titanium, nickel and other metals or alloys. It can also be used for various weldings between different materials, such as copper-brass, titanium-molybdenum, titanium-gold, nickel-copper, etc.

Application industry

Suitable for all kinds of sheet metal, molds, 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 4-in-1 handheld laser welding machine









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)




4-in-1 handheld laser welding machine samples-Suntop





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