KMU-3 UV Laser Marking Machine
Click laser marking machine belongs to the violet marking machine series of products, the machine adopts the third-order cavity frequency doubling technology, compared with the infrared laser, the product of ultraviolet light focusing spot is extremely small, and processing thermal impact is small, can largely reduce the mechanical deformation of the material, so it is mainly used for ultra-fine marking, engraving, especially suitable for use in food packaging, pharmaceutical materials, plastic buttons, electronic components, gifts, anti-counterfeiting code marking and other complex graphic marking, engraving and other application areas.
- Stable performance of the whole machine
- Low power consumption, no consumables, reduce maintenance costs
- Easy to operate, maintenance-free
- Fast marking speed and high efficiency
- Widely applicable to a variety of materials
- 💰 $5,000 – $5,300
- 🚚 7–15 days lead time
- 🛡 12-month warranty
See the KMU-3 UV Laser Marking Machine in Action — Marking Demo Video
Watch the KMU-3 UV Laser Marking Machine marking real samples in our demo lab — focus depth, optical alignment, mark contrast and speed captured at production rates. The clip shows what to expect on day one before you commit to a machine of this class.
See the KMU-3 UV Laser Marking Machine in Action — Marking Demo Video
The UV Laser Markikng Solution from KASU is a cutting-edge system designed to revolutionize your marking and cutting processes. This advanced machine combines the precision of Galvo technology with the versatility of a gantry system, providing unparalleled accuracy and speed. Ideal for various materials such as wood, acrylic, leather, and textiles, this laser cutter is perfect for intricate designs and high-volume production.
The UV laser delivers consistent and clean cuts, ensuring superior quality for your products. Its integrated Galvo system allows for rapid, detailed marking, making it suitable for both small, intricate tasks and larger, more complex projects. The gantry system ensures a wide working area, accommodating diverse project sizes without sacrificing precision.
KMU-3 UV Laser Marking Machine — Full Marking Specs, Build Quality & Manufacturing
Every marking dimension and laser-source detail of the KMU-3 UV Laser Marking Machine in one place — complete technical data sheet, included accessories, available optional upgrades, and our factory manufacturing process. Switch the tabs below to drill into each.
- Data Sheet
- Includes & Options
| Q-tuning Frequency | 8-70KH | Working Width | 110mm*110mm |
| Beam Quality | ≤1.1 | System Environment | Win7/ Win8/ Win10 |
| Laser Type | Pulsed Fiber Solid State Laser
| Laser Wavelength | 355nm |
| Overall Power | 800w | Cooling Methods | External Water Cooling |
| Pulse Width | 10-50Hz | Weight | ≤85Kg |
What's Included with the KMU-3 UV Laser Marking Machine
- UV laser source — 3W (~355 nm, sealed unit)
- Galvo scanning head (2-axis high-speed)
- F-theta lens (110 × 110 mm field)
- Industrial control cabinet + EzCAD-compatible software
- Workbench with adjustable Z
- Fume extractor port + duct adapter
- Industrial DC supply (~150W consumption)
- E-stop + tower light
- Multi-language CE laser warning labels (UV-class set)
- Factory tool kit
- Pharma 2D code template library (GS1 DataMatrix, ScanLite)
Compatible Upgrades for the KMU-3 UV Laser Marking Machine
- Upgrade to 5W UV source (KMU-5)
- Upgrade to 10W + 3D AF (KU-10)
- Larger F-theta field
- Clean-room compatible enclosure
- Extended-warranty pack
Inside the KMU-3 UV Laser Marking Machine — Marking System Engineering Highlights
The blocks below take you inside the KMU-3 UV Laser Marking Machine — each illustrates one specific optical, laser-source, or control-system choice that defines marking depth, contrast, and throughput. Topic-by-topic below: Accurate Fabric Marking, Super Light Spot, and Adaptable to Many Materials.
Accurate Fabric Marking
The UV marking machine uses a characteristic cold light source with low thermal reaction of the material, allowing precise marking on fabrics without damage. Its high quality marking results make it ideal for fabric marking.
Super Light Spot
The UV marking machine is characterised by its use of a cold light source that produces an extremely fine light spot, making it suitable for high-precision marking work. Whether it fis tiny text, complex patterns or fine detail marking, UV marking machine can be accurately achieved to ensure that the mark is clear and durable.
Adaptable to Many Materials
UV marking machines can not only mark on metal surfaces, but also accurately mark on a variety of non-metallic materials such as plastics, ceramics and glass. Its multi-material adaptability makes it ideal for a wide range of applications in multiple industries, whether it is electronics, medical devices or daily consumer goods, can meet the marking needs of different materials.
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Plus, our dedicated customer support ensures you get the most out of our technology. Our machines offer exceptional precision and speed, improving production efficiency and product quality.
Frequently Asked Questions About the KMU-3 UV Laser Marking Machine
What does the KMU-3 UV laser mark that fiber or CO2 lasers can't?
UV lasers operate at ~355 nm â short wavelength absorbed by almost everything, including glass, transparent plastics, sensitive electronics, ceramics, and silicon wafers. Fiber lasers can’t mark these (transparent to fiber wavelength). CO2 can mark some but with heat damage. UV produces ‘cold marking’ â the photon energy breaks chemical bonds directly with minimal thermal spread â clean, high-resolution marks on heat-sensitive substrates.
Which industries specifically need UV laser marking?
Top 2025 segments: Pharmaceutical packaging (German / Swiss pharma plants requiring serialized markings on glass vials without thermal stress); Consumer electronics (Korean / Japanese OEMs marking sealed plastic enclosures); PCB manufacturing (Taiwanese / Chinese PCB houses needing precision laser marks on solder mask); Medical devices (US plastic syringe / IV bag traceability); and Cosmetics packaging (Italian / French luxury cosmetic glass / acrylic bottle batch codes).
What materials does the KMU-3 mark cleanly, and what's the precision?
| Material | Result quality | Min mark size |
|---|---|---|
| Glass (clear, lab-grade) | Crisp white frosted | 20 µm |
| Polycarbonate | White contrast, no melt | 15 µm |
| PCB solder mask | Black, no underlying damage | 10 µm |
| Silicon wafer | Clean surface mark | 10 µm |
| Ceramic substrate | Black engrave | 20 µm |
| PE / PP plastic | White contrast | 15 µm |
| Pharmaceutical glass | USP-compliant frosted | 20 µm |
What's the difference between the KMU-3 and KMU-5 â when does the higher-power version matter?
KMU-3 = 3 W UV source, KMU-5 = 5 W UV source. The higher 5 W is for: faster batch throughput on the same material (roughly 1.5Ã speed), deeper marks on tough substrates (thick ceramics, hardened glass), and higher contrast on dark plastics. For typical pharmaceutical glass / PCB / consumer-electronics marking, the 3 W is sufficient. For higher production volumes or harder materials, 5 W pays back.
What's the laser source lifespan and operating cost for the KMU-3?
UV laser sources have a rated lifespan of 8,000-12,000 working hours â shorter than fiber lasers (100,000 hrs) but no consumables / maintenance during that lifetime. Replacement source cost is roughly 30-40% of the machine’s purchase price; budget for replacement at the 5-7 year mark for high-volume continuous operation. Power consumption: ~150 W during marking â slightly less than fiber.