Gold Laser Marking Machine

1.1, Add Personalized Engraving to Rings, Necklaces and Bracelets

Jewelry customers increasingly expect personalization — names, dates, initials, and custom patterns engraved directly onto the piece. Traditional mechanical engraving risks scratching delicate surfaces and limits detail on curved or narrow areas such as ring interiors.

The SuperbMelt FLMM-series gold laser marking machine resolves this with a 0.01mm resolution fiber laser that works without physical contact. It engraves rings, necklaces, pendants, and bracelets with sharp, permanent results in under 3 seconds per piece — no surface damage, no post-processing required.

Supported file formats include DXF, TLP, and AI, so designs created in CorelDraw, AutoCAD, or Adobe Illustrator transfer directly to the machine with no conversion step.

1.2, Process Customized Gifts — Gold Medals, Commemorative Coins and Awards

Gold medals, commemorative coins, and corporate awards require permanent, high-detail markings that reflect the prestige of the item. A fiber laser delivers crisp serial numbers, portraits, logos, and QR codes on gold surfaces without altering the metal structure or finish.

Common applications:

• Gold Medals & Sports Awards — winner names, event dates, sequential numbering
• Commemorative Coins — corporate anniversaries, military insignia, limited-edition collectibles
• Luxury Gift Items — branded plaques, personalized gold nameplates, engraved jewelry boxes

Choosing the Right Laser Type for Gold Gifts:

The SuperbMelt FLMM-series uses fiber laser technology (20W / 30W / 50W), covering the majority of gold gift and award engraving requirements. For color marking applications, contact SuperbMelt to discuss MOPA configuration options.

1.3, Mark Anti-Counterfeiting Numbers and Anti-Copying Laser Codes

Counterfeit gold products are a significant problem across jewelry, bullion, and luxury goods markets. Laser marking provides a reliable, permanent method of authentication that is extremely difficult to replicate.

Five Types of Anti-Counterfeiting Laser Markings:

A. Serial Numbers & Unique IDs Each item receives a unique alphanumeric code (e.g., “AU-2024-00123”) that links to a manufacturer database for instant verification. Codes are permanent and tamper-proof.

B. QR Codes / Data Matrix Codes Stores encrypted product information — manufacturer, production date, batch number. End users scan with a smartphone for instant authentication. Marking size can be as small as 2×2mm while remaining scannable.

C. Micro-Text & Hidden Engravings Text at 0.1mm or smaller, invisible to the naked eye. Requires magnification to verify — ideal for a secondary hidden authentication layer on high-value jewelry or coins.

D. Holographic Laser Marks (Nanostructuring) Creates light-diffracting surface patterns that change appearance at different angles. Extremely difficult to replicate without identical laser equipment and parameters.

E. Invisible UV Marks Applied using UV laser settings, visible only under UV light. Used as a covert security layer on gold bars, certified jewelry, and government-issued coins.

Applications in Gold & Luxury Items:

• Commemorative Coins — prevent fake replicas entering circulation
• Gold Medals & Awards — ensure only genuine products are awarded
• High-End Jewelry — combat counterfeit luxury items at retail level
• Limited Edition Collectibles — track ownership and provenance

Imagine holding a 24K pure gold medal in your hands—perhaps an Olympic champion’s pride or a company’s lifetime achievement award. How do you make such an honor last forever?

In the past, artisans painstakingly carved with chisels, but the metal could warp, and the engravings would fade. Later came mechanical engraving, yet intricate designs often left the machines struggling. And let’s not forget those ink-printed serial numbers that would eventually wear off…

Then came laser marking—like magic for medals:

• A beam of light flashes, etching a microscopic 0.01mm anti-counterfeit code, nearly impossible to replicate even under a magnifying glass

• The gold surface remains untouched, yet permanently bears the winner’s name and a unique QR code

• Laser heads hum along production lines, personalizing thousands of medals per day, each with distinct designs

• No toxic chemicals, no metal debris—just flawlessly crisp, enduring markings

This is why high-end custom gifts now rely on laser engraving. It doesn’t just preserve each piece’s uniqueness—it turns prestige into permanence. When winners trace their fingers over the laser-engraved ridges, they’re touching a perfect fusion of tradition and cutting-edge technology.

2.1, No contact, no damage to the surface

Traditional mechanical engraving applies physical pressure to the workpiece. On delicate gold items — thin-walled rings, hollow pendants, or gold-plated surfaces — this pressure risks deformation, scratching, and micro-cracking around the engraving area.

Laser marking eliminates this risk entirely. The FLMM-series delivers a focused beam of light that removes material through controlled energy absorption. Zero surface pressure is applied at any point during the process — making it safe for 18K and 24K gold, gold-plated items, and pieces with adjacent gemstone settings.

The result is a clean, sharp mark with no mechanical stress on the surrounding metal, no risk of distorting fine filigree work, and no need for post-engraving polishing to correct surface damage.

2.2, Permanent Marking — No Fading, No Shedding

Ink printing and chemical etching produce surface-level marks that degrade over time through polishing, handling, and cleaning. Mechanical stamping can fade as metal surfaces wear. Laser marking works differently.

The fiber laser’s 1064nm wavelength creates permanent surface marks on gold through controlled material removal — no inks, no adhesives, no fading. The mark becomes part of the metal surface itself, with depth controlled by power and speed settings (typically 5–50μm for standard jewelry applications).

Laser marks on gold withstand:

• Ultrasonic cleaning (standard jewelry cleaning process)
• Chemical polishing compounds
• Normal daily wear and handling
• Exposure to water, sweat, and mild acids

For traceability applications — serial numbers on gold bars, hallmark stamps on certified jewelry — this permanence is a regulatory requirement, not just a preference. The FLMM-series meets this requirement across 20W, 30W, and 50W configurations.

3.1, Power Selection — 20W vs 30W vs 50W

Recommendation: For most jewelry studios and custom gift manufacturers, the 30W configuration provides the optimal balance of speed, precision, and material compatibility. Choose 20W if your work focuses exclusively on thin gold plate or delicate filigree. Choose 50W for industrial-volume production or if you regularly mark stainless steel and thicker metals alongside gold.

3.2, Application-to-Machine Matching Guide

3.3, Recommended Settings for Common Gold Materials

Note: These are starting-point parameter ranges based on FLMM-series specifications. Final parameters should be tested on a sample piece before full production runs. SuperbMelt’s technical support team provides free parameter guidance for customers after purchase.

3.4, What’s Included — FLMM Series Standard Configuration

• Fiber laser source: 20W / 30W / 50W (specify at order)
• Marking field: 100mm × 100mm
• Lifting stroke: 250mm motorized
• Positioning: 3-point red-ray assisted focus
• Supported file formats: DXF, TLP, AI
• Cooling: Air-cooled (no water supply required)
• Power supply: AC220V ±10% / 50Hz
• Certifications: ISO · CE · SGS

For custom configurations, larger marking fields, or rotary axis attachments for cylindrical jewelry marking, contact SuperbMelt directly.