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3mm Stainless Steel Welding by Fiber Laser Welding Machine

Handheld laser welding machine with high precision, high speed, easy to operate, wide range of applications, visualization of the operation, environmental protection and safety, etc., can improve production efficiency and product quality, is one of the indispensable equipment in modern industrial production.
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

3mm stainless steel welding by fiber laser welding machine features-Suntop

Features of 3mm stainless steel welding by fiber laser welding machine

1. Flexible and easy to operate, can meet multi-angle and multi-position welding and cleaning.

2. Self-developed swing welding head, compact and lightweight, simple and flexible operation.

3. With a variety of safety alarm functions. The trigger switch will be activated only when the welding copper nozzle touches the metal and the safety clip clamps the metal plate. After the welding copper nozzle moves away from the workpiece, it will automatically lock the light. The safety of the machine is very high, which can ensure the absolute safety of the operator when working.

4. Adopting infrared ray positioning to calibrate the position of the welding head during the welding process. The welding position is more accurate, the welding seam is flat and beautiful, easy to grind and polish, no need for post-welding treatment or just simple treatment.

5. Multi-purpose machine, equipped with multi-purpose nozzle, to meet the functions of welding, cutting, cleaning and so on.

Details of 3mm stainless steel welding by fiber laser welding machine

1. Laser welding head

The light weight is only 0.8KG, flexible and convenient to weld metal parts of any shape, the weld width is adjustable, and it can perform long-distance welding with a length of 10 meters. With security monitoring system.

2. Operation interface

Advanced resistive touch screen with higher sensitivity, intelligent control, can store multiple welding parameters, support multiple languages (English, Spanish, German, Italian, French, Russian, Turkish, 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 wires.

4. Laser source

We use a customized 45um core diameter welding fiber laser with a lifespan of 100,000 hours, maintenance-free, and can weld various metals.

5. Water chiller

Double circulating water cooling makes the laser source and welding head cool better, and the temperature control sensor adopts imported brands.

6. Solder connection fiber

The 10-meter-long fiber optic cable, built-in design, effectively avoids the damage of the fiber and the problems caused by moisture, and greatly increases the life of the laser components.

3mm stainless steel welding by fiber laser welding machine detail-Suntop

Advantages of 3mm stainless steel welding by fiber laser welding machine

1. High flexibility

Since the laser beam is used to scan the surface of the workpiece for welding, it can be customized according to the customer's requirements and actual conditions, so that various processes can be performed, such as electric welding, cutting, thermal cutting, etc.

2. Wide range of application

Since laser beam is used for welding, it can be used to weld various metal materials.

3. High welding quality

Since the workpiece is welded through precision optical components, the quality of the welding is very high, which ensures the high quality and stability of the entire welding process.

4. Fast welding speed

Since high-speed welding can be achieved, fast welding can be achieved, and the welding speed can also reach a very high level, and even millisecond-level welding speeds can be achieved.

5. Low welding cost

The machine has a service life of up to 100,000 hours and is maintenance-free and installation-free. Compared with traditional arc welding and argon arc welding (TIG or MIG welding machines), the processing cost can be reduced by about 30%.

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.

Handheld head

3mm stainless steel welding by fiber laser welding machine headheld head-Suntop

● Independent research and development, set up multiple security alarms, simple and flexible operation.

● Visualize all parameters, monitor the status of the whole machine in real time, avoid problems in advance, facilitate troubleshooting and solve problems, and ensure the stable operation of the system.

● All process parameters can be set, and various process effects can be tested flexibly.

Automatic wire feeder

3mm stainless steel welding by fiber laser welding machine wire feeder-Suntop

● Our wire feeder with touch capacitive screen, high precision wire feeder.

● 220V drive, more powerful wire feeding, no wire jamming.

Suntop wire feeder   specifications

Wire feeding type


Wire feed delivery   length

3m/5m optional   (9.8ft/16.4ft)


Low voltage enable   signal line

Wire feeding speed   range

40-600 cm/min (15-   230 ipm)

Compatible wire diameter

0.8 mm (0.031   inch), 1.0 mm (0.039 inch), 1.2 mm (0.047 inch), 1.6 mm (0.063 inch), 1.8 mm   (0.071 inch), 2.0 mm (0.079 inch)

Wire reel capacity

1 kg (2 lbs), 5 kg   (10 lbs) or 10 kg (25 lbs) by shaft change

Compatible wire   materials

Steel, stainless   steel, aluminum

Power requirement

220V 50/60Hz

Wire feed unit   weight

22 kg (48.4 lbs)

Wire feeder unit   dimensions (L*W*H)

560mm (22.0 inches)   x 250mm (9.8 inches) x 360mm (14.2 inches)

Safety features

ST-FW1500H/2000H/3000H is a Class IV laser system and routine precautions are required for the safe operation of the equipment.

Built-in features include:

● Key switch control of laser source and Emergency-stop button ensure deliberate operation.

● Fiber laser interlock verifies integrity of laser delivery to the welding gun.

● Laser weld gun trigger, enable and then fire, for intentional operation.

● Part contact electrical interlock turns off the laser power if the welding head is not in contact with the welded parts.

Operators must wear all recommended personal protective equipment (PPE), including laser safety glasses, laser and heat resistant gloves, hats, leather aprons, etc., and other laser and heat resistant clothing.

Welding method

A variety of welding methods: It can realize welding at any angle, such as stack welding, butt welding, vertical welding, flat angle welding, internal angle welding, external angle welding, etc. It can weld all kinds of workpieces with complex weld seams and non-regular shapes of larger workpieces.

3mm stainless steel welding by fiber laser welding machine 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 welding (stainless steel, carbon steel), sheet metal, molds, chassis, water tanks, kitchen and bathroom products, hardware accessories, billboards, door and window frames, household appliances, handicrafts, household items, auto parts and many other industries.

Parameters of 3mm stainless steel welding by fiber 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)




3mm stainless steel welding by fiber laser welding machine samples-Suntop





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