UV laser marking machines demonstrate excellent performance in the field of curved surface marking , especially on arc-shaped or cylindrical surfaces . Traditional flat-field laser marking machines often result in distorted fonts , where characters on both sides are stretched and blurred, due to being out of focus. This leads to poor marking clarity and quality.

Although a rotating worktable can be used to rotate the product during marking — dividing the arc into multiple small segments to prevent distortion — this method significantly reduces efficiency and is not suitable for mass production.

Advantages of 3D UV Laser Marking Technology

In contrast, 3D UV laser marking machines enable full-surface curved marking , greatly improving marking efficiency and quality.

First, a 3D model of the product is generated within the marking software.

The desired text or graphics are then mapped directly onto the 3D model , where the software automatically calculates the correct positioning to ensure the final marking matches exactly at a 1:1 scale on the physical object.

Additionally, the software adjusts the focus point dynamically according to the curvature of each marking area, achieving planarization of complex surfaces .

As a result, compared to traditional rotary marking, the working efficiency is increased by up to 4 times .

For example, after adopting the 3D UV laser marking machine , a manufacturer of water purifier filter cores found that their previously time-consuming arc surface marking process could now be completed in a short amount of time. Not only was production efficiency improved, but the marked fonts were also clearer, more precise, and easier to edit — ultimately enhancing the aesthetics and accuracy of product identification.

Application on Glass and Crystal Products

UV laser marking machines are widely used in glassware such as wine glasses and crystal cups .

The Wanzhong UV laser marking machine , for instance, excels in marking logos on curved wine glasses , thanks to its:

Small spot size

High precision

Excellent beam quality

Minimal heat affected zone

Whether it's simple trademarks, texts, or complex graphics, the system delivers high-quality results effortlessly.

In the manufacturing of glass wine glasses, UV laser technology can be used to engrave text, graphics, symbols, QR codes, and production dates directly onto the cup body. The engraved content is permanent and fade-resistant , requiring no ink or consumables — just electrical power. It offers fast processing speeds and user-friendly operation , with a typical logo marking taking only 1 to 5 seconds .

Outstanding Performance in Glass Bottle Marking

Moreover, the Wanzhong UV laser marking machine performs exceptionally well in marking various types of glass bottles . It is capable of producing clear and durable markings on almost any color of glass.

You can find UV laser marks on products such as alcoholic beverages, soft drinks, and automotive glass.

Key advantages include:

No consumables required

Low power consumption

Reduced operating costs

No consumable management needed

Clean, non-contact, and pollution-free marking

The marking process involves vaporizing the surface material using a high-energy, ultra-short pulse laser beam , making it an eco-friendly and pollution-free labeling solution . It produces no harmful chemical byproducts , meeting strict environmental standards.

This green marking technology not only enhances the appearance and added value of products but also brings about a revolutionary change in manufacturing processes , offering industries a new, advanced solution.

Conclusion

UV laser marking machines, especially 3D models, have revolutionized the way manufacturers handle curved surface marking tasks. With their high precision, fast speed, and eco-friendly features , they are becoming essential tools across many industries — from consumer electronics and medical devices to food packaging and luxury goods.

At Wanzhong Laser , we continue to innovate and provide cutting-edge laser marking solutions that empower our customers to achieve higher productivity, better quality, and sustainable development.