UV Laser Marking Machine
High-Speed, Precision Non-Metal Marking & Engraving Solutions for Wood, Acrylic, Leather, DIY Gifts, Glass & 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
Zero heat radiation, no yellowing, no scorch edge, no carbonization, perfectly compatible with all heat-sensitive materials.
Ultra-fine 0.005nm High Precison
Utilizes a microscopic focal spot down to 0.005mm (5 microns) with non-thermal cold processing. Creates ultra-fine micro-text with zero heat distortion on delicate PCBs, glass, and polymers.
Exclusive for Special Materials
Efficient marking on glass, transparent acrylic, PCB, film, ceramic and resin that cannot be processed by ordinary lasers.
Stable & Low Attenuation
Imported UV laser source, long service life, stable output for long-term industrial batch production.
Fiber Laser vs. CO₂ Laser vs. UV laser
Which Laser Technology Fits Your Business?
| Feature & Parameter | UV Laser (355nm) | Fiber Laser(1064nm) | CO₂ Laser(10600nm) |
|---|---|---|---|
| Processing Principle | Photochemical cold ablation, zero thermal damage | Thermal melting processing, high heat | High-temperature thermal burning processing |
| Precision | Highest (±0.005mm, micro marking) | Medium (Suitable for metal conventional marking) | Low (Suitable for non-metal rough processing) |
| Material Adaptability | All materials: metal, plastic, glass, PCB, wood, leather | Mainly for metal, poor for transparent plastic/glass | Mainly for wood, paper, leather, non-metal |
| DIY & Fine Effect | Perfect, no burnt edge, ultra-clear texture | Easy to burn wood, rough edge for DIY | Obvious burning trace, not suitable for fine DIY |
| Advantages | Cold processing, no deformation, ultra-fine, wide compatibility | Fast speed, low price, stable for metal marking | Cost-effective for ordinary non-metal carving |
| Disadvantages | Higher cost, professional fine processing orientation | Thermal damage, unable to process transparent & heat-sensitive materials | Large heat radiation, low precision, not for precision electronics |
Advantages of UV laser marking
355nm Cold Laser Processing
Zero heat radiation, no yellowing, no scorch edge, no carbonization, perfectly compatible with all heat-sensitive materials.
Ultra-fine 0.005mm High Precision
Super tiny focusing spot, supports micro text, miniature QR code and ultra-clear pattern marking.
Exclusive for Special Materials
Efficient marking on glass, transparent acrylic, PCB, film, ceramic and resin that cannot be processed by ordinary lasers.
Stable & Low Attenuation
Imported UV laser source, long service life, stable output for long-term industrial batch production.
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
| Feture | 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
- Best Value & Production Line Integration
- Unrestricted Workpiece Size
- Cost-Effective Workhorse
Split Portable UV Laser Marking Machine
| Feture | 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
| Feture | 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.
Installation & Operation Guide
- 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 / Handheld 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 most cost-effective solution for standard and medium-long profile marking.
- Step2 Verify Applications & Material Compatibility
- Step 3: Select the Suitable Laser Power & Source Type
3W UV Laser (Cost-Effective Choice)
Best For: Standard plastic marking, glass logos, basic PCB QR codes.
Key Value: Maximum ROI for daily light-duty customization.
5W UV Laser (Most Popular / Industry Standard)
Best For: Higher production speeds, micro-engraving, dark plastics.
Key Value: Fast marking velocity with smooth, zero-charring finish.
10W+ UV Laser (High-Speed Industrial Line)
Best For: Automated flying marking, continuous factory assembly lines.
Key Value: Ultra-fast processing for high-volume manufacturing.
- step4:Add Optiona 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: 360° seamless continuous marking for cylindrical, conical, and curved parts (bottles, rings, 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
Experience the performance before you buy. Visit our local German warehouse and showroom for live machine demonstrations, hands-on trial operations, and complimentary welding sample testing on your exact metal components. Fast, duty-paid local shipping across Europe.
100% Pre-Assembled & Factory Calibrated
Every unit is fully assembled, optical path calibrated, and endurance-tested before dispatch. Arriving at your workshop ready to operate straight out of the crate—simply connect power and shielding gas to start welding in under 10 minutes.
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
Q:Will UV laser marking fade after long-term use?
A:UV laser marking forms permanent marks through photochemical molecular bond breaking instead of surface ink printing or thermal staining. The processed patterns and texts feature strong abrasion resistance, corrosion resistance and fade resistance. It can maintain clear and intact marking effect for long-term use in indoor, outdoor and daily friction environments.
Q: Can UV laser mark ultra-small fonts and micro QR codes?
A:Yes, it is uniquely advantageous for micro marking. Benefiting from 355nm short-wavelength cold laser and ultra-fine focusing spot, the UV laser machine can stably carve ultra-small fonts, miniature QR codes and tiny precision patterns that cannot be recognized by ordinary laser devices. The marking edge is sharp without burrs, fully meeting the micro-precision identification needs of electronic components and precision accessories.
Q: Can UV laser mark colored surfaces and coated materials?
A:Yes. UV laser can achieve clear and high-contrast marking on various colored plastic shells, painted metal surfaces, anodized aluminum and coated workpieces. It can strip the surface coating precisely without damaging the base material, presenting uniform and delicate marking effects, which is widely used for brand logo and specification marking of colored finished products.
Q: Can I customize the UV laser machine according to my production needs?
A:Yes, full personalized customization is supported. We provide customized solutions including different laser power (3W/5W/10W), marking area size, rotary axis for cylindrical products, translation platform for long workpieces, and automated assembly line docking. Voltage, plug standard and machine appearance can also be adjusted to meet different country standards and factory layouts.
Q: What is the delivery cycle and shipping solution for UV laser machines?
A:Standard models are in stock with fast delivery within 3-7 working days. Customized equipment takes 7-15 working days. We provide professional export packaging, full set of CE/FDA/ISO certification documents, and support sea freight, air freight and door-to-door shipping services, covering global export business.
Q：What after-sales service and technical support are included after purchase?
A：All UV laser machines come with a complete after-sales system, including free pre-delivery debugging, lifelong remote software guidance, 24/7 online technical support, and warranty service. We provide free software upgrades, operation tutorials and maintenance guides to ensure stable long-term operation of customer equipment.
Get Your Free Custom Quote & Datasheet
Please fill in the details below, our sales team will reply within 24 hours with a customized quotation and specification sheet.
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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