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Black Laser Marking on Stainless Steel

Stainless steel laser marking has the advantages of high contrast, high precision, high durability, environmental protection and high efficiency. These advantages make laser marking the preferred technology for stainless steel marking, which is widely used in manufacturing, engineering construction, automobile manufacturing and other fields.
Product Model: ST-FL20P/ST-FL30P/ST-FL50P/ST-FL60P
Laser power: 20W/30W/50W/60W
Working area:110*110mm/150*150mm/200*200mm/300*300mm/450*450mm

Details        Product Parameters        Samples       Video

black laser marking on stainless steel features-Suntop

Features of black laser marking on stainless steel

● All-in-one integrated design, better meet the user's industrial production needs, small size, high space utilization.

● The equipment adopts air-cooling technology, without the support of water-cooling system, longer service life.

● High beam quality, small spot size, narrow marking line width, more suitable for fine marking.

● Electricity and light conversion efficiency is very high, reaching more than 30%, low cost and power saving. The power of the whole machine is only 600W/h.

● Adopting red light positioning system, easy to locate, high positioning accuracy.

● The machine can be equipped with other optional accessories according to the customer's actual product laser marking needs, such as rotary device, 2D/3D worktable, pen rotary table and other fixtures.

Details of black laser marking on stainless steel

1. Laser

The core component is the laser, which is responsible for generating a high-power, highly stable laser beam, enabling the laser beam to perform marking operations at higher speeds and with greater precision.

2. Oscilloscope system

Responsible for controlling the trajectory and direction of the laser beam. By precisely controlling the movement of the galvanometer system, rapid and precise marking of the laser beam on the material surface can be realized.

3. field mirror

Used to diffuse the laser beam and form a certain spot size to adapt to different sizes of the marking area. By adjusting the focal length and angle of the field mirror, precise control of the spot size can be realized, so as to achieve efficient and high-quality marking effect.

4. Combining Mirror

It is used to combine the laser beam with the red light in order to observe the accuracy of the marking position during the marking process. Through the merging mirror and the laser beam to realize the optical path indication, so that the operator can more intuitively observe the state and position of the marking process.

5. Red light indicator

Used to indicate the position of the laser beam, through the closing mirror and the laser beam overlap, to realize the light path indication. In the marking process, the red light indicator can help the operator to quickly locate the marking position and improve the marking efficiency.

6. Control software

It is the core control part, which is used to generate and edit the marking pattern and control various operating parameters of the fiber laser marking machine. Through the control software, automated marking operation can be realized to improve production efficiency and quality.

black laser marking on stainless steel details-Suntop

Advantages of black laser marking on stainless steel

1. High contrast: Laser marking technology can achieve clear and bright marks on stainless steel surfaces. Due to the strong mirror effect on the surface of stainless steel, ordinary marking methods may produce lower contrast, but laser marking can effectively overcome this problem and make the marks more clearly visible.

2. High precision: Laser marking is performed in a non-contact manner, which can achieve extremely high precision. The laser beam has a high degree of focus and can achieve very fine marking lines, patterns and text on the surface of stainless steel, with good recognition and aesthetics.

3. High durability: The marks generated by laser marking on the surface of stainless steel have extremely high durability. Since stainless steel itself has good corrosion resistance and abrasion resistance, laser-marked marks are not easy to wear, fade or peel off, can remain clear and readable for a long time, and are suitable for various complex environmental conditions.

4. Green and environmentally friendly: Laser marking is a non-contact and waste-free processing method that does not require the use of additional chemicals or inks. It conforms to the concept of green environmental protection and does not produce waste gas, waste liquid or waste solid, reducing pollution and harm to the environment.

5. High efficiency: Laser marking is fast and can complete large-volume marking tasks in a short time. It is especially suitable for continuous marking on the production line, which improves work efficiency. In addition, laser marking has the characteristics of automation and precise positioning, making the production process faster and more efficient.

Application materials of black laser marking on stainless steel

Suitable for working with most metal marking applications such as Gold, Silver, Stainless Steel, Brass, Aluminum, Steel, Iron Titanium etc., and can also mark on many nonmetal materials, such as ABS, Nylon, PES, PVC etc.

Application industry of black laser marking on stainless steel

Widely used in integrated circuit chips, computer parts, industrial bearings, clocks and watches, electronic and communication products, aerospace devices, a variety of automotive parts, home appliances, hardware tools, molds, wires and cables, food packaging, jewelry, tobacco, as well as military affairs, and other areas of graphic and text marking, as well as high-volume production line operations.

Parameters of black laser marking on stainless steel

Laser Power










Max Marking Range

110*110mm  /150*150mm




Depth of Single Marking





Same pattern marking efficiency


7 s



Whole Machine Power





Laser Type

Fiber Laser

Laser Source

MAX Brand ( Raycus can choose )

Control Software


Cooling Mode

Air Cooling

Working Accuracy


Marking Speed


Repetition Frequency


Laser Wavelength


Minimum Font for Marking


Working Voltage

220V±10%  50/60 Hz

Graphic Format Supported


Applicable Material

All metal (Stainless steel, Carbon steel, Brass,etc.) and some   plastic(ABS, PVC,PES, ETC.)

Spare Parts Come with the Machine

Protective glasses, Metal business card, Foot switch, Hex socket wrench,   Power cord

Optional Accessories to Purchase

D80 Rotating Shaft/ D57 Small Chuck/2D Table (X.Y direction)/ Cutting   Fixture

Net Weight (KG)/ Gross Weight

38KG / 50KG

Machine Dimension

420*300*550mm (L*W*H)

black laser marking on stainless steel samples-Suntop





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