The UV Laser That Handles Every Material Fiber and CO₂ Get Wrong.
The Haotian UV Galvo Laser Engraver uses a JPT 355nm ultraviolet laser source to mark glass, crystal, plastics, ceramics, medical devices, electronics, and sensitive metals through a cold photochemical process — no heat, no burning, no micro-fractures, no melting.
Available in 5W (air-cooled), 10W, and 15W configurations, each built on JPT's S-series production-grade source, this is the machine for applications where CO₂ and fiber lasers cause damage instead of results.
Compatible Materials:
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Wood
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Metals
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Leather
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Plastics
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Fabric
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Stone
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Rubber
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Glass
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Why UV Laser Is the Right Technology — and Why Most Shops Eventually Need One
Fiber lasers excel at metal marking and deep engraving. CO₂ lasers cut and engrave wood, acrylic, and leather efficiently. But both technologies rely on heat as the working mechanism — and heat is the enemy of a wide category of high-value materials.
Clear acrylic melts under fiber laser wavelengths. Silicone is largely transparent to CO₂. Glass marked with CO₂ develops a network of micro-fractures that looks etched at a distance but is actually cracked surface glass. Medical-grade plastics char at thermal laser energies. PCBs with live components cannot tolerate the heat-affected zones that fiber and CO₂ produce.
At 355nm, the UV photon energy breaks molecular bonds directly through a photochemical reaction rather than vaporizing material with heat. The heat-affected zone is negligible — which is why this wavelength is the right tool for work that cannot tolerate thermal damage.
The result: materials that are difficult, inconsistent, or impossible on other laser technologies become straightforward on the Haotian UV.
Choosing Your Configuration — 5W, 10W, or 15W
This is the most important decision on this page. Each power level represents a different production profile.
5W — Precision Entry Point, Air-Cooled, No Chiller
The 5W uses the JPT Lark-355-5A source — JPT's dedicated air-cooled UV platform. No water chiller to maintain, no hoses to route, no leak risk. The machine is plug-and-work on standard 110V power.
At 5W, the energy density stays high enough to produce clean ablated glass marks up to a 130 × 130 mm field. Beyond that size, the beam spreads too much area per pulse and glass results degrade. For non-glass materials — plastics, leather, PCBs, metals — 5W handles larger fields without the same limitation.
Best for: Jewelers and jewelry studios (surface marking on gold, silver, and platinum without heat risk to settings or stones), small electronics and PCB marking, medical device labeling in low-volume environments, decorative glass and crystal gifts where piece size stays under ~130mm, and any shop entering UV engraving for the first time.
Specifications:
- Laser source: JPT Lark-355-5A
- Wavelength: 355nm
- Output power: 5W
- Cooling: Air-cooled (no chiller required)
- Marking speed: Up to 7,000 mm/s
- Beam quality M²: < 1.3
- Positioning accuracy: ±0.002mm
- Minimum line width: 0.01mm
- Minimum character height: 0.15mm
- Repetition frequency: 20–200 kHz
- Standard lens: 110 × 110mm (upgradeable to 300 × 300mm for non-glass work)
- Power supply: 110V/220V, 50/60Hz
- Power consumption: < 500W
10W — The Production Volume Step-Up
The 10W uses the JPT S-series source with water cooling — the same S-series premium construction that ships in the 15W. The S series uses M² ≤ 1.2 beam quality, sealed water-cooled construction, intracavity self-purification, and a 20,000-hour rated lifespan. Haotian only sells the S series because the E economy grade cannot handle production workloads.
The included S&A water chiller maintains stable source temperature across multi-hour production runs. The chiller footprint is meaningful — plan for additional bench or floor space.
A 10W UV laser can mark or engrave materials faster and with deeper penetration and better contrast, especially on metals and industrial plastics. The 10W gives you throughput headroom for moderate-volume orders — like corporate gifts or product batches — without sacrificing UV quality. Glass marking works cleanly up to approximately 200 × 200mm with adequate energy density, a significant expansion over the 5W's 130mm limit.
Best for: Growing businesses adding UV capability as a production tool, glass and crystal shops with consistent daily volume, PCB and electronics marking at moderate batch sizes, and any operation that has outgrown the 5W's throughput ceiling.
15W — Maximum UV Performance for Serious Production
The 15W uses the JPT SEAL-355-15S — the strongest S-series UV source JPT manufactures. On the same job, throughput is roughly 1.5 to 3 times faster than a 10W UV. For shops marking thousands of bottles, PCBs, or medical components per shift, that compounds into hours of saved time per day.
Water-cooled with the included S&A chiller, the 15W runs full 8-hour shifts without beam drift. It also unlocks a capability neither 5W nor 10W can match: carbon fiber cutting without charring. The 15W is the only laser in the Haotian range that handles cutting carbon fiber composites with no charring — because at UV wavelengths, the photon energy (3.49 eV) is higher than the carbon-carbon bond energy (3.45 eV), which means the beam breaks chemical bonds directly instead of burning the material.
The 15W also produces the deepest and highest-contrast subsurface 3D crystal engraving in the Haotian UV lineup when paired with the optional 3D Feeltek upgrade head — enabling premium crystal awards and memorial pieces with greater depth and detail than lower-power units.
Best for: Industrial production environments (medical devices, electronics, cosmetic packaging), high-volume glass and crystal shops, carbon fiber composite marking and cutting, and any shop where the UV laser runs multiple shifts and throughput is a revenue constraint.
What UV Engraves — and Where the Boundaries Are
The Haotian UV galvo laser handles a material range that no other single laser technology matches cleanly:
Glass and crystal — ablated surface marking with smooth, frosted finish comparable to professional sandblasting. No micro-fractures, no chipping, no heat-haze rings. Works on soda lime, borosilicate, quartz, and K9 crystal. Subsurface 3D engraving is available with the optional 3D Feeltek upgrade head.
Plastics — clear acrylic, silicone, ABS, PC, PLA, medical-grade polymers, pharmaceutical packaging — materials that fiber lasers cannot mark cleanly and CO₂ wavelengths melt or pass through.
Electronics and PCBs — precise surface marking near live components without thermal risk to adjacent circuitry or solder joints.
Medical devices and packaging — permanent marking without heat stress on catheter tubing, wristbands, pill coatings, and food-contact packaging.
Metals (surface marking) — anodized aluminum, gold, silver, platinum, stainless steel surface marking. UV does not damage the underlying metal, making it ideal for jewelry pieces where heat could affect stones or delicate settings. For deep metal engraving, a fiber laser remains the correct tool.
Carbon fiber — cutting and marking without charring (15W only, 10W limited capability).
What UV does NOT do:
- Deep metal engraving (fiber laser)
- Wood and leather cutting at production scale (CO₂ gantry)
- Thick acrylic cutting at production speed (CO₂ gantry)
- Color marking on stainless steel (JPT MOPA fiber laser)
- Sheet metal cutting (CNC fiber laser)
If you're unsure whether UV is the right technology for a specific application, our team can evaluate it before you order.
Lens Selection: Choose Your Working Area
Every Haotian UV galvo laser ships with your choice of lens size at checkout. Options range from 70 × 70mm through 300 × 300mm. Key guidance:
For glass and crystal work: stay at or below 150mm field size on 5W; up to 200mm on 10W; 15W handles larger fields cleanly. Energy density degrades on glass at larger fields with lower power.
For non-glass work (plastics, PCBs, metals): larger lenses are appropriate at any power level — the energy density threshold for clean marking is lower than for glass ablation.
The optional 3D Feeltek head upgrade enables subsurface crystal engraving and is available on all three power levels. Contact us if 3D crystal work is a primary application — lens and head selection varies by crystal block size and depth requirement.
Included with Every Machine
- JPT UV laser source at your selected wattage
- High-speed digital galvo scanner
- Your choice of one lens (70×70 through 300×300mm — select at checkout)
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Free rotary attachment — choose D60 (rings/bracelets), D80 (cups/tumblers up to 70mm), or D100 (larger tumblers up to 90mm)
- Safety glasses
- EZCad 2 original software (LightBurn compatible)
- Fixed aluminum worktable
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Water chiller (10W and 15W configurations; 5W is air-cooled, no chiller included or needed)
Free DDP shipping to the US, Canada, and EU — all customs duties and import taxes included. No surprise charges at delivery. Estimated transit approximately 30 days (machines are built to order).
The Maker's Chest Difference
The Haotian UV Galvo Laser is available from Haotian directly and through other resellers. Here's what changes when you order through The Maker's Chest:
- 🛡️ 75-day returns — significantly longer than Haotian's direct return window, giving you real time to evaluate the machine on your actual materials and production environment before you're committed
- 🇺🇸 Expert USA-based technical support — our team understands UV laser technology and can help with lens selection for your materials, EZCad and LightBurn setup, parameter development for glass marking, and production troubleshooting
- 📞 Dual lines of support — phone and email, so when a question comes up mid-production, you have a direct path to a real person
- 🔧 Honest pre-sale guidance — not sure whether 5W, 10W, or 15W is right for your production volume and glass field size? Unsure if UV is even the correct technology for your application? Talk to us before you order. We'll tell you straight — including if a different machine is the better fit
Frequently Asked Questions About Haotian UV Galvo Laser Engraver
Q: How do I choose between 5W, 10W, and 15W?
A: Choose based on your primary material and production volume. The 5W suits lighter workloads where air cooling is sufficient — fine detail work on glass under 130mm, small plastics, jewelry, and electronics at modest volume. The 10W is the volume choice for shops running UV as a daily production tool — more throughput, larger glass fields, water-cooled for sustained operation. The 15W is for shops that need maximum UV throughput and are processing high volumes of glass, PCBs, or medical parts every shift — plus the carbon fiber cutting capability. If you're unsure, tell us your application and daily volume and we'll help you decide.
Q: Does the 5W model really not need a water chiller?
A: Correct. The 5W Lark source runs on air cooling only — no water chiller to maintain, no hoses to route, no leak risk, plug-and-work on standard 110V power. The 10W and 15W models use water cooling and ship with an included S&A chiller. Plan your workspace accordingly for those configurations.
Q: How is UV glass marking different from CO₂ glass marking?
A: CO₂ marks glass by creating micro-fractures — what looks like an etch from a distance is actually cracked glass. UV ablates the material away through a photochemical process, producing a result closer to professional sandblasting or acid etching. Cleaner edges, no chipping, no frosted overspray on surrounding areas. For decorative glass, awards, and luxury pieces where finish quality is the product, UV is the correct technology.
Q: Can it mark jewelry metals without damaging stones?
A: Yes. UV surface marking on gold, silver, stainless steel, and brass works well because the cold process does not damage the underlying metal. It's the right tool for jewelry pieces where heat could affect stones or delicate settings. For deep metal engraving at scale, a fiber laser is more appropriate.
Q: Is the JPT source in these machines production-grade?
A: Yes. JPT is one of the leading industrial UV laser source manufacturers, and the Lark and S-series are their current production-grade lines. Cheaper UV sources from unbranded manufacturers typically cut corners on beam quality, stability, and lifetime. JPT sources are what the industry uses for serious production. Haotian does not use economy-grade UV sources — all configurations ship with genuine JPT S-series (10W and 15W) or Lark-series (5W) components.
Q: What is the difference between the S-series and E-series JPT UV sources?
A: The S series uses M² ≤ 1.2 beam quality, sealed water-cooled construction, intracavity self-purification, and a 20,000-hour rated lifespan. The E series is the economy build with looser pulse stability and shorter lifespan. Haotian only sells the S series because the E cannot handle production workloads or sustained carbon fiber cutting.
Q: Can it do 3D crystal inner engraving (subsurface)?
A: Yes, with the optional 3D Feeltek upgrade head available at checkout. This enables subsurface 3D engraving inside K9 crystal blocks — portraits, logos, and 3D designs that float inside the crystal when illuminated. The 15W model produces the deepest and highest-contrast results; the 5W and 10W also support this with the Feeltek head. If 3D crystal is a primary application, contact us before ordering — lens and head selection depends on your crystal block dimensions.
Q: Is it compatible with LightBurn?
A: Yes. The machine ships with EZCad 2 (included and configured). LightBurn galvo mode is compatible on both Windows and macOS. Most users operate comfortably in either software depending on their workflow preference.
Q: Why buy from The Maker's Chest instead of directly from Haotian?
A: Our 75-day return window gives you real production evaluation time — significantly more than Haotian's direct policy — enough to run the machine through your actual materials and confirm it performs for your application. Our USA-based expert support team is reachable by phone and email, understands UV laser applications, and can help with everything from pre-sale power selection to glass parameter optimization to ongoing production questions.
