Product Description
| Model |
FLM-20W |
FLM-30W |
FLM-50W |
| Average output power |
20W |
30W |
50W |
| Marking width |
70MM×70MM 110MM×110MM 150MM×150MM 175MM×175MM |
| Marking depth |
0.01-0.4MM |
0.01-0.4MM |
0.01-0.6MM |
| Repeatability |
0.002MM |
0.002MM |
0.002MM |
| Minimum line width |
0.01MM |
0.01MM |
0.01MM |
| Minimum character |
0.15MM |
0.15MM |
0.15MM |
| Marking speed |
>800 standard characters/second |
| Laser Output Power |
10%-100% continuously adjustable |
| Beam quality |
<1.5M2 |
<1.5M2 |
<1.5M2 |
| Concentration spot diameter |
<0.01MM |
<0.01MM |
<0.01MM |
| Power supply |
220V single phase/50HZ/<350W power supply |
220V single phase/50HZ/<400W |
A laser marking machine is a device that uses a laser beam to mark permanent identifiers on the surface of various materials. Through the thermal effect or photochemical reaction of a high-energy laser beam, the surface of the material undergoes color changes, vaporization or the formation of indentations, thereby achieving the marking of information such as text, patterns and QR codes. The following is a detailed introduction to the laser marking machine:
I. Working Principle
The core principle of a laser marking machine is the interaction between laser and materials, mainly achieving marking through two ways:
Hot working
The laser beam is focused on the surface of the material, generating high temperatures (up to several thousand degrees Celsius), causing local vaporization, melting or carbonization of the material, and forming permanent marks (such as metal engraving, plastic ablation).
Applicable materials: metals, ceramics, engineering plastics, epoxy resins, etc.
Cold working (photochemical decomposition)
By using short-wavelength lasers such as ultraviolet lasers, the molecular bonds of materials are broken through photochemical reactions, thereby changing the surface color (such as the light-colored marks on glass, films, and pharmaceutical packaging), without obvious thermal damage.
Applicable materials: flexible materials, high molecular polymers, semiconductor components, etc.
Ii. Main Types and Characteristics
According to the type of laser light source, common laser marking machines can be classified into the following categories:
Fiber laser marking machine
Light source: Fiber laser (wavelength 1064nm, near-infrared light).
Features:
High energy density: Fast marking speed, large depth, suitable for metals and some non-metallic materials.
Maintenance-free: The lifespan of fiber lasers is over 100,000 hours, and there is no need to replace consumables.
Strong stability: Adaptable to industrial environments and has strong anti-interference ability.
Application scenarios: Electronic components (such as chip pin coding), hardware tools, automotive parts, stainless steel products, etc.
2. CO laser marking machine
Light source: CO gas laser (wavelength 10.6μm, far-infrared light).
Features:
Good non-metallic compatibility: High absorption efficiency for organic materials such as wood, leather, acrylic, and paper.
Wide power range: Available from 30W to 200W, suitable for materials of different thicknesses.
Application scenarios: packaging industry (production date of beverage bottles), leather engraving, bamboo and wood products, coding of medical paper boxes, etc.
3. Ultraviolet laser marking machine
Light source: Ultraviolet laser (wavelength 355nm, ultraviolet light).
Features:
Cold working characteristics: Fine spot (minimum up to 10μm), no thermal damage, suitable for precision devices.
High resolution: The marking effect is clear, suitable for small characters and QR codes (such as mobile phone SIM cards, electronic components).
Application scenarios: semiconductor packaging, flexible circuit boards (FPC), medical devices (syringe batch numbers), optical components, etc.
4. Green laser marking machine
Light source: Solid-state laser (wavelength 532nm, green light).
Features:
Between hot processing and cold processing: Moderate energy, suitable for semi-transparent materials (such as glass, ceramic glazes).
High contrast: The marked colors are bright and vivid, making it suitable for scenarios with high visual inspection requirements.
Application scenarios: mobile phone glass covers, jewelry, liquid crystal display panels, etc.
Iii. Key Technical Parameters
Laser power
Unit: W (watt). The greater the power, the higher the marking depth and speed, but excessive power may cause the material to burn through.
For example, the common power of optical fiber marking machines is 20W-50W, and that of CO marking machines is 30W-100W.
Spot diameter:
The marking accuracy is determined by the smaller the light spot (such as the 10μ m-level light spot of ultraviolet laser), the more minute patterns can be marked.
Marking speed
Unit: mm/s. High-speed models can reach over 5000mm/s, suitable for mass production.
Marking range:
That is the galvanometer scanning range. Common sizes include 110mm×110mm and 300mm×300mm. A larger marking range can be achieved through splicing.
Working temperature/humidity:
Industrial-grade equipment is typically suitable for temperatures ranging from 0 to 40ºC and humidity ≤70% (without condensation).
Iv. Application Fields
Laser marking machines are widely used in multiple industries. Typical scenarios include:
Electronics and Semiconductors
Mark the chip model, the circuit board component number and the IMEI code of the mobile phone case.
Automobile manufacturing
Engine parts traceability code, tire production date, wiring harness label.
Medicine and Food
Batch numbers of drug packaging (such as aluminum foil and plastic bottles), production dates of food bags (CO laser non-contact coding).
Aerospace
Corrosion-resistant marking for aviation components (such as QR codes on titanium alloy parts).
Consumer goods
Anti-counterfeiting marks for luxury goods (such as laser micro-engraving on watch straps) and logos on cosmetic bottles.
Hardware and building materials
Tool brand identification (such as wrenches, screwdrivers), pipe specification marking.
V. Advantages and Limitations
Advantage
Permanent marking: Wear-resistant and corrosion-resistant, superior to traditional ink printing (prone to fading and wear).
Non-contact processing: No mechanical contact, avoiding surface damage to materials (such as fragile glass and films).
High precision and flexibility: It can mark micron-level text or complex patterns, and supports real-time variable data (such as serial numbers, QR codes).
Environmentally friendly and highly efficient: No ink or solvent required, low energy consumption, suitable for integration into automated production lines.
Limitations
Material adaptability
Some transparent materials (such as pure glass) need to be coated before marking.
Soft materials (such as rubber) may deform due to thermal effects, and low-power or ultraviolet lasers should be selected.
The initial cost is relatively high
The price of ultraviolet/green light marking machines is usually 2 to 3 times that of fiber optic/CO models. Small fiber optic marking machines cost about 50,000 to 150,000 yuan, while industrial-grade ultraviolet models can reach over 500,000 yuan.
Maintenance requirements:
Gas lasers (such as CO) require regular gas replacement or maintenance of the resonant cavity, while fiber/solid-state lasers have lower maintenance costs.
Vi. Selection Suggestions
When choosing a laser marking machine, the following factors should be comprehensively considered:
Material type:
Metal → Preferred fiber laser Non-metals (plastics, wood) →CO or ultraviolet laser; Precision components → Ultraviolet/Green light.
Marking requirements:
Deep marking (such as tool number) → High-power optical fiber; Fine QR code → Ultraviolet laser (spot ≤20μm).
Production efficiency
For large-scale assembly lines, select high-speed models (such as marking speed > 3000mm/s) and integrate an automated feeding system.
Budget and maintenance cost:
Long-term use → Priority optical fiber (maintenance-free); Short-term high-precision demand → ultraviolet (but depreciation costs need to be taken into account).
Vii. Safety and Operating Procedures
Laser protection
The equipment should be equipped with a closed protective cabin, and the operators need to wear laser protective glasses of the corresponding wavelength (such as infrared protective glasses for fiber lasers).
Electrical safety
Ensure good grounding, avoid exposing high-voltage components, and regularly inspect the circuit system.
Ventilation and heat dissipation
High-power equipment should be equipped with a cooling system (such as a chiller), and the working environment should be kept well-ventilated to prevent the laser from overheating.
Application
Basic Info
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