The MZU series ultraviolet desktop laser marking machine is built around a 355nm ultraviolet laser. Materials absorb ultraviolet light at a high rate, which widens the range of materials that can be marked, and because the focused UV spot is extremely small, the heat-affected zone produced during processing is minimal. This makes the machine particularly suitable for ultra-fine marking on heat-sensitive and thin materials. The series is applied in the high-end market of ultra-fine processing, fine cutting and micro-processing, and is mainly used for marking and surface treatment of materials such as glass, liquid crystal screens, textiles, thin ceramic sheets, semiconductor silicon wafers, IC grains, sapphires and polymer films.

Output power is available at 3W (MZU-3F) or 5W (MZU-5F) at a 355nm wavelength. Beam quality M2 is ≤1.4, pulse frequency is adjustable from 10kHz to 150kHz, and output power stability is specified as better than 3% within 24 hours. Engraving speed reaches up to 10,000 mm/s with an engraving depth of up to 1 mm depending on power and time; repeatability is ±0.002 and the minimum marker line width is 0.1 mm, with a minimum character height of 0.15 mm.

The machine is designed as a compact desktop unit: external dimensions are 585 × 320 × 692 mm, the overall machine weight is about 23.55 kg, and the column and optical path can be disassembled and reassembled by loosening the screws so the unit can be transported, stored or repositioned between work areas. The galvanometer uses a metal body with built-in dual red-light marking indication, requires no adjustment and can be upgraded to a high-speed digital scanning galvanometer. Control is through a Windows PC running multilingual marking software that supports text, patterns, QR codes, barcodes, serial numbers and graphics. Cooling is by air, system power is 500W on 220V/50Hz (110V supported), and the design life is approximately 100,000 working hours.