Air-cooled. Best for fine detail and small batches.
Water-cooled. Faster, for production volume.
The HeatSign UV laser marking machine uses a 355nm cold laser. It marks glass, plastics, ceramics, PCBs, and many more materials with almost no heat. So your parts will not crack, melt, or burn. This ultraviolet laser marker makes fine, permanent text, codes, logos, dates, serial numbers, and QR codes. It is the right tool when detail matters and heat is the enemy. Pick 5W or 10W, a flat table or rotary axis, and air or water cooling. Then run it all from simple EZCAD software.
Ultra-fine detail down to 0.01 mm. Tiny QR and micro text.
Reliable UV laser source. No inks, no consumables.
The HS-UV Series is a 355nm UV laser marking system built for one job: clean, fine marks with no heat damage. It suits glass, plastics, ceramics, electronics, and more. Here is what that means for your shop.
UV is the cold-marking expert. It is the best choice for heat-sensitive and high-detail parts — the jobs a fiber or CO2 laser can crack, melt, or burn. These are the materials where UV truly wins.
Clean, frosted, crack-free marks on bottles, awards, and lab glass. UV gives a sharp, sandblasted look that a CO2 laser cannot.
High-contrast marks on ABS, silicone, PP, and caps. No melting or burning, even on thin parts.
Traceability codes and serial numbers on boards. The thin copper traces and tiny components stay safe.
Permanent marks on alumina, dental, and decorative ceramics. No cracking.
Fine, permanent IDs and barcodes on chips, ICs, and connectors. The tiny parts stay cool and safe.
Date and lot codes on PET, PE, and PP films at line speed. Marks resist rubbing and do not smear.
Good to know: UV is built for fine, cold marking on sensitive materials. For deep metal engraving, use a fiber laser marking machine. For everyday non-metals like wood, a CO2 laser marking machine can be more economical. Pick UV when detail and zero heat damage matter most.
Send us your material type, sample photo, and marking requirement. HeatSign engineers will help test the best UV laser marking solution for clean, fine, and low-heat results.
Watch a 355nm UV laser mark glass, plastic, and a PCB on the left. Read the simple steps on the right.
The clip shows fine, high-contrast marks forming on glass and plastic. The surface stays smooth. There are no cracks and no burnt edges.
This is the difference cold marking makes. The beam changes only the top surface. So the part keeps its strength and its look.
It works the same way on a PCB, a ceramic part, or a silicon wafer. The mark is clean and permanent, and the material is never harmed.
A UV laser marking machine is a 355nm laser that marks with light instead of heat. Here are the steps:
1. A solid-state source makes an infrared beam, then triples it down to a 355nm UV beam.
2. A fast galvo head uses two mirrors to aim the beam. This UV galvo laser design keeps marking quick and precise.
3. The high-energy UV light breaks the surface bonds of the material. This is called “cold marking”.
4. The mark is permanent, fine, and clean. There is almost no heat, so the part does not crack, melt, or burn.
Pick the power, table, and cooling that fit your parts. Here is a simple guide.
Need automation? You can add a rotary axis, an auto round table, an auto-focus head, or a conveyor line for batch work.
Not sure how to match the options? Here are common setups our customers use.
Frosted, crack-free branding on glass and crystal.
5W + Rotary + Air
Clean logos on plastic caps and small parts.
5W + Flat + Air
Gentle, permanent codes on device housings.
5W + Flat + Air
Traceability codes at line speed, copper stays safe.
10W + Flat + Water
High-volume marks around round parts.
10W + Rotary + Water
Permanent IDs on alumina and electronics ceramics.
10W + Flat + Water
All three lasers make permanent marks, but they are not the same. The simple rule: UV is for heat-sensitive and ultra-fine work. Fiber is for bare metal. CO2 is for general non-metals. The wavelength decides what each laser does best.
Point | UV (this machine) | Fiber Laser | CO2 Laser |
|---|---|---|---|
Wavelength | 355 nm | 1064 nm | 10.6 µm |
Marking type | Cold (photochemical) | Thermal (heat) | Thermal (heat) |
Best materials | Glass, plastics, ceramics, PCB, film | Steel, aluminum, brass, bare metals | Wood, acrylic, leather, paper |
Heat damage risk | Very low | Higher on delicate parts | Higher on delicate parts |
Deep metal engraving | No | Yes | No |
Fine detail (0.01 mm) | Best | Good | Fair |
Our quick recommendation: Choose a UV laser marking machine when heat damage is the risk — glass, medical plastics, electronics, and fine micro-marks. For bare-metal part marking, pick a fiber laser. For wood and general non-metals, a CO2 laser may cost less. HeatSign UV machines use a high-quality 355nm UV source — not a relabeled marketplace diode — for stable output, longer life, and real support.
Compare the 5W UV laser marking machine and the 10W model side by side, and pick the right fit.
| Feature | HS-UV05 (5W) | HS-UV10 (10W) |
|---|---|---|
| Laser Type | DPSS UV laser (355nm, sealed) | |
| Wavelength | 355 nm | |
| Laser Power | 5W | 10W |
| Repetition Rate | 20–150 kHz | 40–150 kHz |
| Pulse Width | < 15 ns @ 40 kHz | < 20 ns @ 60 kHz |
| Beam Quality | M² ≤ 1.2 | M² ≤ 1.25 |
| Marking Speed | up to 8,000 mm/s | |
| Marking Area | 110 x 110 mm (optional 150 / 175 / 200 / 300 mm) | |
| Min. Line Width | 0.01 mm (depends on material) | |
| Min. Character | 0.15 mm (depends on material) | |
| Double Red-Light Pointer | Yes — one dot and one line, to find the focus fast | |
| Control System | EZCAD2 (BJJCZ) | |
| Interface / OS | USB — Windows XP / Vista / 7 / 8 / 10 (32/64-bit) | |
| Cooling | Air-cooled | Water-cooled |
| Power Supply | 110 or 220V / 50–60Hz | |
| Power Consumption | ≤ 1500W | |
| Warranty | 1 year | |
A UV source is harder to build. The machine triples an infrared beam down to 355nm, which needs extra optics. So UV costs more for the same power. It is worth it when heat would ruin your part. On glass, medical plastics, and electronics, UV gives a clean mark that fiber or CO2 cannot.
Yes. The mark is part of the surface, so there is no ink to rub off. It resists handling, washing, and wear. For medical parts that face many sterilization cycles, send a sample first so we can confirm the result for your exact process.
It can make fine surface marks on some coated or treated metals. But UV is not for deep metal engraving. If you need deep, high-contrast marks on bare steel or aluminum, a fiber laser is the right tool. We can advise based on your part.
No. UV ablates a thin layer and leaves a clean, frosted mark. This is why UV is the preferred choice for glass. A CO2 laser, by contrast, can leave tiny cracks. For glass awards, bottles, and lab ware, UV is the safe pick.
The 5W model is air-cooled, so there is no chiller and very little upkeep. The 10W model uses a water chiller for steady, non-stop work. The chiller only needs a simple change walter every few months.
It is a Class 4 laser, so treat it with care. You need 355nm UV-rated eyewear — fiber-laser goggles do not protect against UV. Good news: every machine ships with the correct UV-rated goggles included. For daily production we also recommend an enclosure or interlock, and we can guide your setup.
UV makes cold, clean, ink-free marks, which suits medical UDI and many packaging jobs. It adds no ink or chemicals. You should still confirm the exact material and use against your own FDA or local rules. Send a sample and we will test it.
Yes. You can add a rotary axis, an auto round table, an auto-focus head, or a conveyor line. The machine also supports batch files and codes in EZCAD. Tell us your part and line speed, and we will propose a solution.
Want proof before you buy? Just tell us your material and what you want to mark, or send a photo or drawing. Our engineers will mark a similar part on a UV machine and send you a short video of the result, plus the right power, options, and a clear price.
Factory-direct. 1-year warranty, lifetime support, and UV-rated goggles included in the box.
See how HeatSign UV laser marking machines help users achieve clean, fine, and low-heat marks on sensitive materials in real production.
We bought the UV laser for small logos and ID marks on glass parts. The frosted mark looks clean, and we have not seen cracking in normal use. For curved pieces, we still adjust the fixture and test one sample first.
We use the 5W UV laser for lot codes and small text on black plastic packaging parts. Our previous process sometimes left slight burn marks. With UV, the code is clean and readable. It still took some testing to find the right contrast, but the surface stays flat.
