Metal & Parts

Laser Marking Machine for Gold Jewellery

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WEIDIAN PRINTER

On 2025年7月15日

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Laser Marking Machine for Gold Jewellery: Precision for Precious Pieces

Laser Marking Machine for Gold Jewellery is a game-changer for jewelry workshops, designed to etch delicate, permanent marks on gold pieces. Notably, it uses low-heat laser technology, so it avoids damaging or discoloring precious gold—critical for maintaining jewelry value—while creating sharp details like hallmarks, serial numbers, or custom engravings. Additionally, it works with all gold karats, from 14K to 24K, fitting rings, necklaces, and bracelets. Moreover, it operates with micro-level accuracy, ideal for intricate jewelry designs.

First, this machine excels at compliance with industry standards, a key reason Laser Marking Machine for Gold Jewellery is trusted by jewelers. As a result, brands use it to mark purity stamps (e.g., “24K”) on gold pieces, ensuring transparency for customers. Furthermore, it allows adjustable mark depth and size, adapting to tiny pendants or wider bangles. Besides, its marks resist wear and tarnish, keeping details legible even after years of use.

What’s more, Laser Marking Machine for Gold Jewellery offers user-friendly efficiency for workshops. Notably, it has a compact design, saving space in small studios. Additionally, it features a pre-set jewelry template library, cutting setup time. Finally, it requires minimal maintenance, reducing downtime. In short, it blends precision, safety, and ease of use—making it essential for gold jewelry marking.

I. Core Overview

A laser marking machine for gold jewellery uses ultra-short pulses to create intricate, permanent marks without thermal damage. Gold’s high reflectivity and softness demand specialized green (532nm) or UV (355nm) lasers to achieve sub-10μm precision for hallmarks, serial numbers, or decorative patterns.

II. Key Processes

Micro-Engraving: 0.01–0.1mm depth for hidden serial codes or logos.
Surface Annealing: Oxidation-free dark/black marks for high contrast (e.g., artist signatures).
3D Relief Engraving: Multi-layer ablation for textures or portraits.

III. Critical Machine Specifications

1. Short-Pulse Laser Source:
  - Green (532nm): Best for pure gold (24K), minimizes reflectivity.
  - UV (355nm): Ideal for alloys (18K/14K), prevents alloy segregation.
2. Precision Stages:
  - ≤5μm positioning accuracy for filigree or micro-text.
  - Rotary attachment for rings/bangles.
3. Vision Integration:
  - 20x optical zoom aligns marks on curved surfaces (e.g., gemstone settings).

IV. Jewellery-Specific Applications

- - - Hallmarking: Legal purity stamps (e.g., “750” for 18K gold).
    - Traceability: Micro-Serial numbers for anti-counterfeiting.
    - Customization: Monograms, fingerprints, or intricate motifs.

V. Procurement Checklist

- - - - Pulse Width: <15ns to avoid melting.
      - Software: Compatibility with .AI/.DXF designs for artistic engravings.
      - Safety: Fume extraction + debris shield to protect gemstones.

Conclusion: For flawless gold jewellery marking, prioritize a low-heat-input laser (green/UV) with micron-level precision, vision alignment, and jewellery-design-specific software. This ensures brand integrity, regulatory compliance, and artistic flexibility.

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