355nm UV Laser Marking Machines
355nm marking for fine details on suitable plastics, glass and coated parts. Compare configurations by material, finish and daily workload.
Explore UV laser marking for small codes, logos and identification on selected plastics, glass and coated components. Material grade, additives, colour and surface finish affect the result: UV is not a universal replacement for fiber or CO2.
What is “Cold Marking”?
Match the laser to your material
355nm UV laser marking machines produce fine, high-contrast marks with lower heat input than fiber and CO₂ systems. They are used for small text, QR/Data Matrix codes, logos and traceability marks on plastics, glass, coated metals, ceramics, electronic components and other heat-sensitive parts.
5W vs 10W UV: Reference Specifications
These are product-level reference values for two HT Marker configurations, not a universal promise for every UV model.
| Selection point | HS-UV05 (5W) | HS-UV10 (10W) Pro |
|---|---|---|
| Wavelength | 355 nm | 355 nm |
| Rated power | 5W | 10W |
| Standard marking field | 110 × 110 mm | 110 × 110 mm |
| Max. marking speed | 0–7,500 mm/s | Up to 8,000 mm/s |
| Pulse repetition rate | 20–200 kHz | 40–150 kHz |
| Beam / pulse reference | M² < 1.2 | <20 ns at 60 kHz |
| Detail reference | Confirm against material and artwork | 0.01 mm min line; 0.2 mm min char |
Compare UV Marking Machines
Explore desktop, auto-focus, portable and flying-marking configurations. Confirm the material, marking area and workflow before selecting a model.
When to Choose UV, Fiber or CO2
Choose a UV Configuration for Your Workflow
5W desktop configurations
Compare the HS-UV05 and auto-focus HS-UV05-W for your part size, focus workflow and cooling requirements.
Portable configuration
Explore the HS-PUV05 when a portable format suits your workspace. Confirm the required working setup, cooling and part positioning before choosing.
10W flying configuration
Consider the HS-UV10 for moving-product coding. Confirm line speed, code size, triggering, fixtures and integration before purchase.
Power is only one input
Material response, lens, scan settings and handling time determine usable throughput. Do not assume higher wattage guarantees better contrast or a cutting capability.
UV Laser Marking FAQs
What exactly is "Cold Marking" and why do I need it?
Choose 355 nm UV marking when a conventional fiber or CO₂ mark melts, burns, foams or distorts the part, or when fine detail is needed on suitable plastics, glass or coated components. UV can deliver a smaller, lower-heat-affected surface mark, but “cold” does not mean zero heat. Start with the actual resin or glass and define acceptable contrast, edge quality and cycle time; compare the finished mark, not just the wavelength.
Can I mark glass bottles without breaking them?
Yes, many glass bottles can be surface-marked with a UV laser marking machine, including fine text, logos and codes. The mark should be qualified on the intended bottle: use the same glass composition and wall thickness, set the focus on the curved marking area, then inspect for visible chips or cracks and test readability after normal handling. Do not treat a successful trial on one bottle as a crack-free guarantee for every glass formulation or geometry.
Fiber lasers also mark plastic. Why should I pay more for UV?
Pay for UV when the exact plastic needs a cleaner, finer or lower-heat-affected mark than the fiber trial gives. Start with fiber for laser-responsive engineering plastics when the contrast and surface change are acceptable; it may be the more economical production route. Compare UV for transparent, light-coloured, thin or heat-sensitive parts where fiber causes melting, rough edges or poor contrast. Ask for side-by-side marks on the actual resin, including its colour and additives, and judge contrast, damage and cycle time before choosing.
What is the lifespan of the UV Laser source?
There is no single published source-life figure for the HS-UV05 and HS-UV10 that can be promised across both models. The current product information states a one-year warranty for key components. UV marking does not use ink or chemical marking media, but operating costs can include protective optics, extraction filters and cooling-system maintenance. For a cost comparison, request the exact laser source and cooling configuration, warranted coverage and replacement-source terms in the model quotation; do not apply a fiber laser’s 50,000-hour reference to a UV source.
How precise is it? Can it mark on micro-chips?
The listed HS-UV10 specification gives a 0.01 mm minimum line and 0.2 mm minimum character reference with a 110 × 110 mm standard field. The HS-UV05 lists beam quality of M² < 1.2 and a 20–200 kHz repetition-rate range.
Those values do not automatically guarantee readable micro-codes on every component. Lens choice, field size, resin or coating, focus and code-verification requirements determine the usable feature size.
Is the machine safe to use?
Laser radiation and process fumes require appropriate controls. Confirm the enclosure, interlocks, extraction and operator training for the supplied configuration. Protective eyewear alone does not replace engineering controls; follow the machine manual and applicable workplace requirements.
Can it mark on stainless steel or metal?
Yes, UV can create fine surface marks on selected stainless-steel or coated metal parts, but fiber laser is normally the first choice for routine metal IDs and engraving. Use UV when a specific micro-feature, coating or heat-sensitive assembly gives a better finished result. If the requirement is an indented or deep metal mark, compare fiber engraving or dot peen instead. State the alloy, coating, code size and required contrast so the process is matched to the job.