UV Laser Marking Machine
High-speed, precision solutions for metal-free marking and engraving on wood, acrylic, leather, DIY gifts, glass, and packaging.
UV Laser Working Principle
ONSlaser UV laser marking machine adopts advanced 355nm ultraviolet cold laser technology, realizing zero thermal damage ultra-fine marking. It makes up for the processing limitations of fiber laser and CO₂ laser, and is the preferred equipment for heat-sensitive materials, transparent materials, electronic precision parts and personalized DIY engraving.
What is a UV Laser?
To produce a UV laser, the laser beam passes through two addional crystals that conventional fiber laser systems lack. First, By passing a standard wavelength laser(1064nm) through a nonlinear crystal , the wavelength is reduced to 532 nm. Then, this light is further passed through another crystal, effiectively reducing its wavelength to 355nm. As a result, UV lasers are commonly called third-harmonic generation (THG) lasers because they are the third wavelengh created. v using these lasers is called “Cold Marking,” which refers to how they can perform marking and processing with minimal heat stress.
How UV Laser Marking Works?
01
Laser Generation (Cold Light Source)
The professional UV laser generator outputs stable 355nm short-wavelength ultraviolet laser. With high single-photon energy, it forms a high-density cold laser beam, which is the core light source for non-thermal precision processing.
02
Laser Transmission & Collimation
The dedicated low-loss optical fiber transmits the cold laser beam stably without energy attenuation or beam deviation. The collimation lens group calibrates the light path to ensure uniform laser energy, laying the foundation for consistent ultra-fine marking effect.
03
High-precision Galvo Trajectory Control
The built-in high-speed galvanometer scanning system precisely deflects the focused UV laser spot. It accurately traces preset texts, logos, QR codes and complex patterns, with independent energy control for each coordinate to realize ultra-clear fine carving.
04
Photochemical Material Ablation
The high-energy short-wavelength laser breaks the molecular bonds on the material surface instantly through photochemical reaction:
- Transparent & Heat-sensitive Materials (Glass, Acrylic, PCB, Plastic): Realize precise stripping and marking without thermal radiation, yellowing or edge scorch.
- Handicraft & DIY Materials (Wood Slices, Leather): Form delicate high-contrast patterns without burning or carbonization damage.
UV Laser Core Advantages
355nm Cold Laser Processing
Short-wavelength 355nm UV laser processing minimizes heat input, helping reduce scorching, carbonization, discoloration, and thermal deformation on heat-sensitive materials.
Ultra-Fine Precision Marking
The short 355nm wavelength enables a small focused spot and fine energy control for detailed text, codes, graphics, and micro-marking on sensitive materials.
Ideal for Sensitive & Specialty Materials
Efficient marking on glass, transparent acrylic, PCB, film, ceramic and resin that cannot be processed by ordinary lasers.
Stable Output for Industrial Production
Industrial-grade UV laser sources provide stable output for precision marking and repeatable batch-production applications.
Fiber Laser vs. CO₂ Laser vs. UV laser
Which Laser Technology Fits Your Business?
| Feature & Parameter | UV Laser (355nm) | Fiber Laser (1064nm) | CO₂ Laser (10,600nm) |
|---|---|---|---|
| Processing Principle | Short-wavelength photochemical processing with low heat input | Infrared laser processing optimized for metals and selected plastics | Thermal laser processing with strong absorption in many organic materials |
| Precision | Very High – ideal for fine details and micro-marking | High – ideal for precise metal marking and engraving | Medium–High – depends on material, optics and application |
| Material Adaptability | Plastics, glass, PCB materials, ceramics, films and selected metals | Metals and compatible industrial plastics | Wood, paper, leather, acrylic, glass and other non-metal materials |
| Best For | Heat-sensitive materials, electronics, fine codes and high-detail marking | Metal traceability, serial numbers, engraving and industrial identification | Organic materials, packaging, acrylic and general non-metal marking |
| Key Advantages | Fine spot, reduced thermal impact and high-detail processing | Fast metal marking, strong contrast and broad industrial use | Cost-effective processing for many non-metal applications |
| Considerations | Higher equipment cost and typically lower throughput than standard fiber for general metal marking | Less suitable for transparent materials and some heat-sensitive applications | Greater heat input and generally less suitable for heat-sensitive micro-marking |
ONSLASER™ Specifications & Custom Selection Guide
All ONSlaser UV laser models support customized appearance, marking area, extended travel, voltage configuration, fixture accessories and automated production solutions, matching personalized DIY and industrial production needs.
- Top Pick for Compliance & Safety
- Compact Footprint
- Eco-Friendly & Quiet
Enclosed Safety UV Laser Marking Machine
| Feature | Parameter |
|---|---|
| Power | 3W / 5W / 10W |
| Scope of marking | 110×110 mm (Up to 150×150 mm) |
| Instability of energy | ＜2% |
| Noise | ≤60db |
| Safety & Enclosure | Class 1 Enclosed Housing(Dust-proof, UV-tinted window, fume extraction port) |
| Cooling System | Built-in Air Cooling or Compact Water Chiller |
| Continue working time | 16hours |
| Software configuration | Multi-language EzCad |
| Optional | Rotary Axis/Extended Translation Table/X-axis Translation Stage |
- Best Value & Production Line Integration
- Unrestricted Workpiece Size
- Cost-Effective Workhorse
Split Portable UV Laser Marking Machine
| Feature | Parameter |
|---|---|
| Power | 3W / 5W / 10W |
| Scope of marking | 110×110 mm ~ 200×200 mm |
| Instability of energy | ＜2% |
| Noise | ≤60db |
| Safety & Enclosure | Class 4 Open Design (Safety goggles required) |
| Cooling System | Built-in Air Cooling or Compact Water Chiller |
| Continue working time | 16hours |
| Software configuration | Multi-language EzCad |
| Optional | Rotary Axis/Extended Translation Table/X-axis Translation Stage |
- Most Compact & Budget-Friendly
- Plug-and-Play Simplicity
Table Desktop UV Laser Marking Machine
| Feature | Parameter |
|---|---|
| Power | 3W / 5W / 10W |
| Scope of marking | 110×110 mm / 150×150 mm |
| Instability of energy | |
| Noise | ≤60db |
| Safety & Enclosure | Class 4 Open Design (Safety goggles required) |
| Cooling System | Air Cooling or Compact Water Chiller |
| Continue working time | 16hours |
| Software configuration | Multi-language EzCad |
| Optional | Rotary Axis/Extended Translation Table/X-axis Translation Stage |
Versatile Applications & Precision Marking Solutions
Explore how our 355nm UV laser technology achieves high-contrast, zero-thermal-stress processing across diverse materials and industries.
Micro-Marking for Electronics & Semiconductors
High-Contrast Tracing Without Thermal Damage
High-density PCB boards and sensitive microchips cannot tolerate heat build-up. Our 355nm UV laser provides ultra-precise, cold processing that directly breaks material molecular bonds, delivering high-contrast QR codes, barcodes, and serial numbers without charring or damaging underlying copper traces.
- Compatible Materials: FR4 PCB, IC Chips, Silicone Wafers, Ceramic Substrates.
- Key Advantage: Zero thermal stress, 100% readable micro QR codes down to 0.5mm.
Precision Engraving for Glass & Delicate Packaging
Smooth Frosted Finish Without Surface Cracking
Traditional lasers often cause micro-cracks or shatter brittle glass surfaces. The cold-light technology of UV lasers creates elegant, permanent frosted logos and fine patterns on high-end cosmetic bottles and glassware—leaving the surface perfectly smooth to the touch with zero structural weakness.
- Compatible Materials: Borosilicate Glass, Crystal, Quartz, Perfume/Cosmetic Containers.
- Key Advantage: Smooth frosted texture, no thermal crack propagation, zero breakage rate.
High-Contrast Marking on Engineering Plastics
Clean, Burr-Free Markings for High-Volume Production
Processing white, transparent, or flame-retardant plastics often leads to yellowing or surface burning under fiber lasers. UV lasers generate instant, high-contrast black or grey markings on smooth plastic shells without melting or bulging the surrounding surface—ideal for strict compliance logos and text.
- Compatible Materials: ABS, PC, PVC, Silicone, TPU, Flame-Retardant Polymers.
- Key Advantage: Permanent high-contrast text, no surface deformation, no yellowing.
Ultra-Fine Micro-Engraving for Jewelry & Crafts
For precious metals, translucent jade, and delicate jewelry, precision is everything. UV laser’s extremely small focal spot size (<20 μm) enables intricate oriental patterns, fine lettering, and micro-hallmarks without damaging the delicate luster or value of the workpiece.
- Compatible Materials: Jade, Amber, Precious Stones, Gold, Silver, Titanium Alloys.
- Key Advantage: Super-fine spot size (<20 μm), razor-sharp detail edges, pristine finish.
Custom Engraving for Handicrafts & DIY Gifts
Personalized & Intricate Designs for Artisanal Products
For craft businesses and DIY studio creators, product versatility and clean processing are essential. The 355nm UV laser’s cold-processing mechanism allows ultra-fine vector graphics, logos, and micro QR codes to be marked on various organic and delicate craft materials without charring, melting, or surface deformation.
- Compatible Materials: Natural Wood, Glassware, Organic Soaps, Acrylic, Leather, Custom Keychains.
- Key Advantage: Zero thermal stress, 100% readable micro QR codes down to 0.5mm, pristine burr-free finish.
How to Choose the Right UV Marking Machine
- step1：Choose Machine Form Factor
Enclosed Cabinet Type
Best Choice For: Production lines or workshops requiring strict safety compliance, dust extraction, and high-precision fine marking.
Key Decision Factor: Choose this if safety, cleanliness, and Class 1 laser compliance are your top priorities.
Split / Open Type
Best Choice For: Marking oversized, heavy, or immovable metal components, large molds, and pipes.
Key Decision Factor: Choose this if you need ultimate portability and no physical workpiece size constraints.
Desktop Type
Best Choice For: Standard workshops, hardware traceability, and multi-piece batch marking with optional extended worktables.
Key Decision Factor: Choose this if you want the cost-effective solution for standard and medium-long profile marking.
- Step2 Verify Applications & Material Compatibility
- Step 3: Select the Suitable Laser Power & Source Type
Note: Higher laser power does not always mean better marking quality. The optimal UV laser power depends on material absorption, marking depth, line speed, heat sensitivity, and required detail.
3W UV Laser (Cost-Effective Choice)
Best For: Fine marking on compatible plastics, glass, PCB materials, and other low-to-medium volume precision applications.
Key Value: Cost-effective for low-to-medium volume precision marking applications.
5W UV Laser (Versatile Production Choice)
Best For: Higher-throughput precision marking, fine engraving, electronics, glass, and compatible plastics.
Key Value: Higher processing efficiency while maintaining fine detail and reduced thermal impact.
10W+ UV Laser (High-Speed Industrial Line)
Best For: Automated flying marking, continuous factory assembly lines.
Key Value: Higher throughput for automated and high-volume production environments.
- step4:Add Optional Accessories
Scale your production flexibility with precision-engineered accessories designed for complex geometries and automated workflows.
- Extended Translation Table: Expands horizontal working stroke for smooth positioning of long sheets and aluminum extrusions.
XY-Axis Translation Stage: Motorized two-axis precision positioning for high-accuracy batch array and multi-part marking.
Rotary Axis Attachment: Rotary positioning and marking for cylindrical, conical, and curved parts such as bottles, rings, and tubes.
Installation & Operation Guide
Pre-installed & Pre-configured Delivery
Multi-layer Safety Protection
Dual Control Mode (Keyboard / Foot Pedal)
01
Power Connection & Self-Check
02
Parameter Setting & Positioning
03
Dual-Mode Marking Operation
04
Cleaning & Daily Maintenance
Free remote software training & 24/7 online technical support
ONSLASER Core Advantage
Direct Factory Pricing & Customization
As an original equipment manufacturer (OEM/ODM), we deliver industrial-grade laser marking machines directly from our production line. Our OEM services include customized chassis and branding, as well as flexible hardware/software configuration options tailored to your workflow. You get superior quality, zero middleman markups, and highly competitive prices.
Local German Warehouse & Sample Testing
Visit our local German warehouse and showroom for live demonstrations and hands-on machine evaluation.Complimentary marking tests are available using your actual materials, logos, barcodes, or marking requirements.
100% Pre-Assembled & Factory Calibrated
Every system is fully assembled, optical-path calibrated, and marking-tested before shipment. Key functions and marking performance are verified in advance, reducing setup time and allowing faster commissioning for your marking applications.
Ready to Get Your Custom Configuration & Factory Direct Price?
Click the button on the right and fill out the form. ONSLASER’s sales team will reply to you within 2 hours during business hours.
FAQ
Frequently Asked Questions about Fiber Laser Marking Machines
Q1: Will UV laser markings fade over time?
A: UV laser marking creates durable marks by modifying or removing material at the surface rather than applying ink. Marking durability depends on the substrate, marking parameters, surface treatment, and operating environment. On suitable materials, UV laser marking can provide long-lasting, high-contrast identification for industrial applications.
Q2: Can a UV laser mark ultra-small text and micro QR codes?
A: Yes. The short 355nm wavelength and small focused spot make UV lasers well suited to fine text, micro QR codes, serial numbers, and other high-detail identification. Actual minimum feature size depends on the optical configuration, marking area, material, and code requirements.
Q3: Can UV lasers mark colored surfaces and coated materials?
A: Yes. UV lasers can produce high-contrast marks on many colored plastics, painted surfaces, anodized aluminum, and coated materials. Depending on the material and coating, the laser can selectively modify or remove the surface layer with limited impact on the underlying substrate. Sample testing is recommended to determine the optimal parameters and marking result.
Q4: Can the UV laser marking machine be customized for my production requirements?
A: Yes. We offer customized configurations including laser power (3W/5W/10W), marking area, rotary axes for cylindrical parts, translation stages for long workpieces, and integration options for automated production lines. Voltage, plug type, machine configuration, and branding can also be adapted to project requirements.
Q5: What are the lead times and shipping options for UV laser marking machines?
A: Lead time depends on the machine configuration, customization requirements, and current stock availability. Standard configurations can typically be prepared faster than customized systems. We support sea freight, air freight, and door-to-door delivery, with shipping options arranged according to the destination and project requirements. Applicable compliance documents can be provided according to the machine configuration and destination market.
Q6: What after-sales service and technical support are included?
A: We provide pre-shipment machine testing, operation guidance, manuals, parameter setup support, and remote technical assistance. Our technical team can also assist with software setup, troubleshooting, and application-related questions after delivery. Warranty terms and service options are provided according to the machine configuration and order agreement.
Get Your Free Custom Quote & Datasheet
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Useful insights on laser marking methods
Want to learn more about laser marking machines before investing? Explore everything you need to know about laser marking in this guide.
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