Jewelry laser marking machine

In today’s jewelry industry—where personalization, high quality, and standardization are increasingly demanded—laser marking machines have shifted from optional equipment to core productivity tools. They not only solve many long-standing issues of traditional engraving but also empower jewelry businesses to build differentiated competitiveness.

This guide breaks down jewelry laser marking machines from multiple angles: industry trends, target users, key questions, purchasing priorities, application scenarios, and technical advantages. It helps you clearly understand the value of this essential device and how to use it effectively.

The jewelry industry’s growing reliance on laser marking is fundamentally the result of technological advancement precisely matching industry needs. The limitations of traditional marking methods and the breakthrough advantages of laser technology together drive this irreversible transformation.

1.1 The Critical Pain Points of Traditional Marking

For many years, the jewelry industry has relied on hand engraving, mechanical stamping, and chemical etching—methods that face numerous serious limitations:

• Insufficient precision and material damage

Mechanical stamping force is difficult to control and can easily deform or crack delicate components such as ultra-thin gold sheets (≤0.3mm) or fine silver pieces.
Hand engraving often results in inconsistent depth, skewed fonts, and low precision, making it unsuitable for micro-markings (e.g., brand logos smaller than 0.5mm).

• High material loss and costly waste

Chemical etching uses strong acids and alkalis that corrode the surface, causing 3%–5% material loss.
Mechanical stamping produces metal debris that contributes to ongoing waste.
For high-value metals like gold and platinum, this accumulated loss significantly increases costs.

• Markings wear off easily and lack traceability

Traditional markings are shallow (≤0.1mm) and fade with friction or polishing.
They lack uniqueness, making product authentication and traceability nearly impossible, failing to meet modern brand protection and quality-control needs.

• Low efficiency and poor scalability

Hand engraving produces only a few dozen pieces per person per day.
Mechanical stamping requires mold changes (each mold costs USD 70.65–282.6), and switching designs takes 1–3 days.
Traditional methods simply cannot support the industry trend toward “small batch, multiple styles” or fast e-commerce order fulfillment.

• Environmental risks and compliance pressure

Chemical etching produces hazardous wastewater requiring costly treatment systems.
Mechanical stamping generates noise pollution.
Failing to comply with tightening environmental regulations can result in production suspension.

1.2 The Revolutionary Advantages of Laser Marking

Laser marking creates high-precision, high-efficiency, and environmentally friendly engraving through high-energy laser-material interaction—directly addressing industry pain points.

• Micron-level precision with zero damage

Laser spot diameter can be as small as 0.01mm, enabling ultra-clear marking on:

• 0.3mm-thick gold chains

• 0.2mm fine silver pieces

• micro pavé prongs

• gemstone gaps
  Marking depth is adjustable (0.01–0.5mm) with a heat-affected zone of only 0.01–0.1mm, ensuring no deformation or cracking.

• Zero material loss, significantly reducing cost

Laser marking does not remove or corrode material—loss is close to 0%.
Compared with the 3%–5% loss from chemical etching, a factory producing 100 kg of gold jewelry monthly can save 36–60 kg of gold annually—over USD 141,300 in cost savings.

• Permanent, wear-resistant markings with full traceability

Laser markings alter the molecular structure of the surface, making them:

• heat-resistant

• corrosion-resistant

• wear-resistant
  Even repeated polishing won’t erase them.
  Unique QR codes and serial numbers support full-process traceability—from production to after-sales—greatly strengthening brand protection.

• High efficiency and flexible production

Laser marking requires no molds.
Changing designs takes 5 minutes via software.
A single machine can mark 500–2,000 pieces/hour—10–50× faster than hand engraving.
It supports personalization (e.g., names, dates on ring interiors), increasing product value and customer satisfaction.

• Environmentally friendly and fully compliant

No wastewater, no chemicals, no noise—only electricity consumption.
Meets environmental standards with zero additional compliance cost.
No chemical exposure protects workers’ health and reduces labor risk.

• Compatible with all jewelry materials

Laser marking works on:

• gold

• platinum

• K gold

• silver

• gemstones

• jade

• ceramics

• mixed compositions

Parameters can be precisely tuned to avoid damaging sensitive inlays.

1.3 Driven by Regulations and Market Demand

• Regulatory requirements

Many regions legally require jewelry to have clear markings such as:

• material purity (18K, 925, PT950)

• brand logo

• origin

Laser marking’s precision and consistency ensure full compliance and prevent penalties for improper labeling.

• Consumer demand upgrade

Modern buyers expect not just beauty and value but also authenticity, traceability, and personalization.
Unique laser-engraved codes and custom markings increase customer trust and purchasing intention.

Data shows:
Jewelry with personalized laser markings can increase average order value (AOV) by 15%–30%.

Laser marking machines are not “universal equipment.” Their suitability depends heavily on a user’s production scale, product type, and core requirements. The following types of users can achieve the highest ROI when choosing a laser marking machine:

2.1 Small to Medium Jewelry Workshops (10–50 workers)

Core needs:
Small-batch, multi-style production (changing designs 3–5 times a day), controlling precious metal loss, meeting hallmarking compliance, and improving production efficiency.

Why it fits:
These workshops often face mixed orders, tight delivery schedules, and high cost sensitivity. A laser marking machine requires no molds, offers fast style switching, and easily adapts to different orders.

• Zero material loss significantly reduces raw material cost.

• High marking efficiency (500–1000 pcs/hour) shortens production cycles.

• Standardized hallmarking avoids compliance risks.

Recommended: Desktop fiber laser marking machine (20–50W)

• Footprint ≤ 1㎡

• Easy to operate

• Investment: $7,065–$21,195

• Payback period: 6–12 months

2.2 High-End Jewelry Brands / Custom Studios

Core needs:
Brand differentiation, personalized engraving services (wedding rings, luxury jewelry), permanent and aesthetic markings, and premium brand image.

Why it fits:
High-end jewelry demands extreme precision. Laser marking provides micron-level accuracy, capable of marking inner ring walls, pendant backs, and very fine surfaces without damaging the piece.
Supports personalized text, patterns, QR codes—enhancing exclusivity and brand value.

Recommended: High-precision fiber laser marking machine (30–60W)

• Equipped with CCD vision positioning

• Accuracy ±0.001 mm

• Suitable for complex, detailed patterns

2.3 Jewelry E-commerce / Live-Stream Sellers

Core needs:
Fast turnaround for small-batch custom orders (100–500 daily), shorter shipping time, improve customer satisfaction, and reduce return rates.

Why it fits:
E-commerce relies on fast, personalized production.
Laser marking machines allow:

• Online receipt of customized files (names, symbols, patterns)

• Parameter adjustments within 5 minutes

• Daily throughput of 5,000+ pieces per machine
  Personalized engraving helps reduce “not as expected” returns by 20–30%.

Recommended: Fully automatic laser marking machine (50–80W)

• Supports auto loading/unloading

• Can operate unattended

2.4 Jewelry Repair / Refinishing Shops

Core needs:
Mark restoration, customized engraving, quick operation, and zero damage to the jewelry.

Why it fits:
Repair shops have limited space (5–10㎡) and handle many types of jewelry. A portable laser marking machine (≤10kg) can be moved easily between workstations.
The non-destructive marking allows restoring faded hallmarks or adding new ones without affecting the appearance of the jewelry—expanding service offerings and increasing ticket size.

Recommended: Portable fiber laser marking machine (20–30W)

• Works with 220V household power

• No complex installation

2.5 Large-Scale Jewelry OEM Factories (50+ workers)

Core needs:
Mass production, automated traceability (unique serial code for every item), batch consistency, reduced labor cost.

Why it fits:
OEM factories produce thousands of items per day. Traditional marking requires many workers and is prone to errors.
Laser marking machines can integrate into production lines to achieve:

• Automatic loading, positioning, marking, unloading

• Marking consistency error ≤0.01 mm

• ERP integration for auto-generated traceability codes

• Full lifecycle product management

Recommended:

• High-power fiber laser marking machine (80–120W)

• CO₂ laser marking machine (for non-metal inlays)

• Automated line integration

• Daily output per machine: 10,000+ pieces

When selecting and using a laser marking machine, users are most concerned about whether it meets their actual needs and whether there are hidden risks. Below are core questions and answers based on real search intent and industry feedback:

3.1 Will laser marking damage the material or purity of precious metals such as gold, platinum, or silver?

Answer: No.
The principle of laser marking is to use laser energy to create physical changes (melting, vaporization) on the metal’s surface, not chemical changes. Therefore, it does not affect the purity or internal structure of the metal.
The heat-affected zone is extremely narrow (only 0.01–0.1 mm), far below the deformation threshold of precious metals, so it will not cause brittleness, cracking, or warping.

Practical verification:
Using a 50W fiber laser marker to engrave 0.1 mm deep text on an 18K gold ring, the gold content remained 75% after testing. The ring did not deform, and even after being bent 180°, the marking stayed clear with no change in material hardness.

Note: Choose machines from reputable manufacturers. Using excessive power (>100W) or incorrect parameters may cause surface oxidation, which can be avoided with argon gas protection.

3.2 How clear and permanent is the marking? Will it wear off during daily use?

Answer: The marking is clear and permanently wear-resistant.
Laser marking depth is adjustable (0.01–0.5 mm). Even very shallow markings (0.01 mm) are visible due to color contrast (gold becomes light brown; platinum becomes grayish-white).
Deep markings (0.1–0.5 mm) have a tactile texture and are highly visible.

Because the marking is formed by altering the material itself—not by adding ink or coating—it is extremely durable. Tests show that gold jewelry with laser marking maintains clarity after 100,000 friction cycles, far outperforming traditional stamping (which starts to blur after 10,000–20,000 cycles).

Application:

• High-end jewelry brands use 0.05–0.1 mm shallow markings for logos and material marks.

• Traceability codes or serial numbers typically use 0.1–0.2 mm deep markings.

3.3 Can laser marking achieve personalization, such as engraving inside a ring, complex patterns, or QR codes?

Answer: Yes—fully supports a wide range of customization.
Laser markers are computer-controlled and compatible with CAD, CorelDRAW, and other design software. They can accurately engrave text (Chinese, English, symbols), logos, patterns, QR codes, barcodes, handwritten signatures, and even silhouette images.

Text engraving:

• Minimum text height: 0.3 mm

• For a 2 cm inner ring area: can engrave 8–10 Chinese characters

• Adjustable font, size, spacing

Pattern engraving:

• High-precision reproduction of complex textures

• Up to 1000 DPI, far more detailed than hand engraving

QR / barcode engraving:

• Directly scannable

• Can store product information, traceability links, authenticity verification, etc.

Case:
A wedding ring customization brand used a laser marker to engrave handwritten signatures + zodiac icons on ring interiors. Processing time: 3 minutes per piece, average order value increased by 20%, and custom orders grew from 30% to 60%.

3.4 Is the machine difficult to operate? Does it require professional technicians? Can ordinary staff learn quickly?

Answer: Very easy to operate—most users master it within 1–2 hours.
Modern jewelry laser marking machines use a “beginner-friendly” design with just three steps:

1. Import text / pattern into the computer (supports simple copy-paste).

2. Select marking parameters (built-in presets for gold, platinum, silver—no manual tuning needed).

3. Place the jewelry piece and start marking (some models have CCD visual positioning for auto alignment).

The machine includes both touch-screen and computer interfaces, and manufacturers provide free training, manuals, and video tutorials.

Real feedback:
A jewelry shop assistant with zero technical background learned to independently complete ring engraving and pendant marking after 1 hour of training, handling over 200 custom orders per day.

3.5 Is the maintenance cost high? Does the machine require frequent replacement of consumables?

Answer: Maintenance cost is extremely low with almost no consumables.
Core components such as the laser source, galvanometer, and field lens have long lifespans:

• Fiber laser source: 100,000 hours (≈ 34 years at 8 hours/day)

• Galvanometer and field lens: 50,000 hours

• No consumables needed

Daily maintenance includes only:

• Weekly cleaning of internal dust with compressed air (5 minutes)

• Monthly cleaning of the field lens with alcohol (2 minutes)

• Annual inspection of laser source & circuits (usually free service)

Compared with traditional stamping (requires mold replacement) and chemical etching (requires chemical reagents), the yearly maintenance cost of a laser marking machine is only $14.13–$70.65, mainly for electricity and cleaning supplies.

4.1 Laser Type & Power: Determine Material Compatibility and Marking Results

Core logic: Different laser types match different jewelry materials, and power affects marking speed, depth, and precision.

Laser Type Comparison

Power Selection Guide

• Small studios / repair shops (20–30W): Light marking (0.01–0.1mm), small-scale production (≤500 pcs/hr)

• SME factories / e-commerce sellers (30–60W): Medium depth (0.05–0.2mm), mid-sized batches (500–1500 pcs/hr)

• Large OEM factories (60–120W): Deep marking (0.1–0.5mm), high-volume production (≥1500 pcs/hr)

Avoiding mistakes: Do not blindly choose high power—higher wattage increases cost and may cause surface oxidation. For jewelry/precious metals, fiber laser is the best cost-performance choice.

4.2 Marking Precision & Resolution: Determine Fineness and Application Fit

Core logic: Precision affects clarity of micro text (e.g., 0.3mm fonts), while resolution determines pattern detail quality.

Key Parameters

• Marking precision: Minimum laser spot diameter + positioning accuracy.

  • High-quality machines: spot ≤0.01mm, accuracy ±0.001mm

• Resolution: Pixels per unit area (300–1000 DPI).

  • Higher resolution = better detail (complex patterns, photo silhouettes require ≥600 DPI)

Selection Guide

• Standard branding/logos, text ≥0.5mm: Precision 0.01mm, resolution 300–600 DPI

• Custom micro-engraving (0.3mm text, detailed patterns), high-end jewelry: Precision ≤0.005mm, resolution ≥600 DPI

Testing Method

Ask the manufacturer to engrave 0.3mm Chinese characters and thin complex patterns on a 0.3mm silver sheet.
Check for clarity, smooth edges, and no breaks or blurring.

4.3 Marking Speed & Stability: Determine Productivity and Batch Suitability

Core logic: Speed affects delivery capacity; stability affects long-term production consistency and failure rate.

Key Parameters

• Marking speed: 300–1000 mm/s for standard fiber lasers; high-end machines reach 1500 mm/s

• Stability:

  • 24-hour continuous operation failure rate ≤0.5%

  • Batch marking consistency error ≤0.01mm (for 1,000 pcs)

Selection Guide

• Small batches (≤1000 pcs/day): 300–500 mm/s, prioritize stability

• Medium batches (1000–5000 pcs/day): 500–800 mm/s, must support ≥8 hours continuous work

• Large batches (≥5000 pcs/day): ≥800 mm/s, choose industrial-grade laser sources (IPG, Raycus)

Avoiding mistakes:
Manufacturers often list maximum theoretical speed, not real production speed.
Request actual marking test videos (e.g., engraving a specific logo and measuring exact time per piece).

4.4 Positioning System & Ease of Operation: Determine Accuracy and Learning Curve

Core logic: Positioning ensures accurate marking (e.g., centered inside rings), while ease of use affects labor cost and training time.

Positioning Systems

• Manual Positioning:

  • Uses fixtures + visual alignment

  • Accuracy ±0.1mm

  • Suitable for simple pendants, small batches

• CCD Vision Positioning:

  • HD camera auto-detects item outline and positioning points

  • Accuracy ±0.001mm

  • Ideal for rings, irregular pendants, and mass production

  • Saves 10–20 minutes of calibration per batch

Ease-of-Use Indicators

• Software compatibility: CAD, CorelDRAW, AI; supports PLT, DXF, BMP, JPG, etc.

• Preset parameters: At least 5 built-in presets (gold, platinum, silver, K-gold)

• Automation: Auto feeding, production-line integration, remote monitoring via app (advanced models)

Selection Guide

• Small studios / repair shops: Manual positioning + basic software

• E-commerce / SME factories: CCD positioning + smart software

• Large OEM factories: CCD + automation for production line integration

4.5 Auxiliary Features & After-Sales Service: Determine User Experience and Long-Term Reliability

Core logic: Auxiliary functions solve special marking issues (oxidation, material protection), while after-sales ensures long-term stability.

Key Auxiliary Features

• Argon protection system: Prevents oxidation on precious metals (e.g., gold turning dark)

• Red-light preview: Shows marking area before engraving

• Safety protection:

  • Laser safety ≥ Class IV

  • Interlock system (door opens → laser stops)

  • Emergency stop button

• Dust collection: Removes debris during marking (especially non-metals)

After-Sales Service Essentials

• Warranty:

  • Laser source ≥ 2 years (top brands offer 3 years)

  • Whole machine ≥ 1 year

• Response speed:

  • 24/7 technical support

  • On-site repair within 48 hours (local service center preferred)

• Training:

  • Free on-site training (1–2 sessions)

  • Manuals, video tutorials, troubleshooting guides

• Spare parts supply:

  • Core parts (field lens, galvanometer) delivery ≤ 7 days

Selection Guideline

Choose manufacturers with solid jewelry industry experience and local support.
Avoid “no-brand” machines—downtime from failures can cost far more than the equipment.

Laser marking machines play an important role throughout the entire jewelry production, customization, and after-sales process. Below are three of the most common real-world scenarios, with detailed breakdowns of workflows and application value:

5.1 Scenario 1: Jewelry Material & Brand Marking (Mass Production)

Application Need:
A medium-sized gold processing factory produces 1,000 pieces of 18K gold necklaces daily. They need to engrave material marks (18K), brand logos, and origin (“China”). The marks must be clear, consistent, and must not affect the necklace’s shine.

Equipment Selection:
30W fiber laser marking machine (with CCD visual positioning + argon protection)

Operation Workflow:

• Pre-treatment: Clean the necklaces using an ultrasonic cleaning machine to remove oil and dust. After drying, place them into a special fixture (10 pieces per fixture, supports batch positioning).

• Parameter Setting: Open the marking software, import the brand logo, “18K,” and origin text. Select the preset “18K gold” parameters (25W power, 500mm/s speed, 0.05mm depth). Enable argon protection (5L/min).

• Positioning & Marking: Start CCD visual positioning. The system automatically recognizes the marking area (e.g., pendant back), calibrates, and begins batch marking. Each batch of 10 pieces takes 3 minutes.

• Post-processing: After marking, wipe the necklace with a soft cloth. No polishing required. Proceed to the next process (electroplating, packaging).

Application Value:
One machine can produce 1,000 pieces/day with only one operator. Marking consistency error ≤0.01mm, fully meeting branding standards.
Zero-loss operation saves ~10g of gold per day, equaling over $4,239 USD in annual savings.

5.2 Scenario 2: Personalized Wedding Ring Engraving (E-commerce Orders)

Application Need:
A jewelry e-commerce shop offers customized engraving for wedding rings—names, dates, signatures, zodiac symbols—requiring 24-hour delivery with beautiful and non-damaging results.

Equipment Selection:
50W fiber laser marking machine (with CCD visual positioning + intelligent design software)

Operation Workflow:

• Order Intake: Customers submit customization requests (e.g., “Zhang San + Li Si + 2024.05.20 + heart icon”). The service team converts files into design formats (JPG, TXT supported).

• Workpiece Preparation: Place the ring (18K gold, platinum) into a dedicated ring fixture that fits sizes 0–24.

• Design & Preview: Import customer files into the marking software. Adjust text size, spacing, and position (centered on the inner ring). Preview using the red-light simulation and send to customer for confirmation.

• Marking Execution: After customer confirmation, use the preset parameters:

  • 18K Gold: 30W power, 300mm/s speed, 0.03mm depth

  • Platinum: 35W power, 250mm/s speed, 0.04mm depth
    Marking time per ring: 30 seconds

• Quality Check & Shipping: Inspect clarity and ring integrity. Pack and ship.

Application Value:
Capable of processing 400+ customized orders per day, compared to ≤50/day with hand-engraving.
Personalization increases product value—average order price rises from $423.9 → $508.7, with a 40% increase in conversion rate.

5.3 Scenario 3: Jewelry Traceability Code & Serial Number Engraving (Brand Anti-Counterfeit)

Application Need:
A high-end jewelry brand engraves a unique QR code and serial number on each diamond pendant. Customers can scan the code to verify authenticity, diamond grade, and production info—preventing counterfeits.

Equipment Selection:
60W fiber laser marking machine (with CCD visual positioning + ERP system integration)

Operation Workflow:

• Data Generation: The ERP system generates unique serial numbers and QR codes (containing product ID, diamond grade, batch info). Data syncs to the marking software.

• Workpiece Positioning: Fix the pendant on a high-precision fixture. Start CCD visual positioning to identify hidden marking areas (e.g., pendant underside).

• Marking Execution: Select the preset “platinum” parameters (40W power, 400mm/s speed, 0.08mm depth). Enable argon protection. Mark the 5mm × 5mm QR code and 0.5mm serial number. Time per piece: 1 minute.

• Data Matching: After marking, the serial number and QR code automatically sync to the brand traceability database. Customers scan the code to access the brand’s website.

• Quality Check & Storage: Check QR code readability and clarity. Approved pieces go to inventory.

Application Value:
Achieves full-process product traceability and effectively prevents counterfeits (unique QR codes cannot be replicated). Enhances brand trust—customer repurchase rate increases 25%.
ERP integration improves inventory management and order tracking efficiency.

Once jewelry factories experience the advantages of laser marking, it becomes difficult to revert to traditional marking methods. This “irreversible” choice stems from laser marking’s comprehensive superiority in cost, efficiency, quality, and compliance.

6.1 Cost Gap: “Zero Waste + Low Labor” vs. High Hidden Costs

• Material Cost: Laser marking has nearly 0% precious metal loss, while chemical etching loses 3%-5% and mechanical stamping loses 2%-3%. For a factory producing 100 kg of gold daily, laser marking can save 3-5 kg of gold per day, resulting in over $141,300 USD annual savings.

• Labor Cost: One laser marking machine can mark 500–2,000 pieces/hour. One operator can manage 2–3 machines simultaneously, with daily labor cost only $7.07–$14.13 USD. Traditional hand engraving completes 50–100 pieces/day per person, requiring 10× more labor, with daily labor cost $70.65–$141.3 USD.

• Consumables / Mold Cost: Laser marking requires no consumables, only electricity (0.5–1 kWh/hour). Traditional stamping requires replacing molds ($70.65–$282.6 per set; changing design wastes a mold), and chemical etching requires continuous purchase of reagents ($141.3–$423.9/month).

6.2 Efficiency Gap: “Fast Changeovers + High Volume” vs. Slow Traditional Methods

• Changeover Efficiency: Laser marking changes designs in 5 minutes via computer parameter adjustment, supporting small-batch, multi-style production ideal for e-commerce. Traditional stamping requires 1–3 days (new mold), chemical etching 2–4 hours (adjust reagents/templates), unsuitable for frequent design changes.

• Batch Production Efficiency: A single laser marking machine can produce 5,000+ pieces/day, while hand engraving ≤100/day, stamping ≤1,000/day. During peak seasons (e.g., Valentine’s Day, Christmas), laser marking easily handles order surges, whereas traditional methods often delay orders due to limited capacity.

6.3 Quality Gap: “Precise + Permanent” vs. Limited Traditional Accuracy

• Marking Precision: Laser marking achieves micron-level precision, clearly marking 0.2mm-thin silver chains or 0.3mm-thick gold sheets. Traditional stamping precision is only 0.1–0.2mm, hand engraving ≥0.5mm error.

• Durability: Laser markings are permanent and wear-resistant, unaffected by repeated polishing. Traditional marks (≤0.1mm) blur after 1–2 years.

• Appearance: Laser marks are delicate, burr-free, and do not damage metal luster. Hidden areas (inner ring, gemstone gaps) can be marked without affecting overall aesthetics. Traditional stamping can deform parts and create burrs, chemical etching may corrode surfaces and reduce shine.

6.4 Compliance & Brand Gap: Enabling Brand Upgrades

• Compliance: Standardized laser markings meet global jewelry material certification and origin labeling requirements, avoiding penalties for non-compliance. Traditional marks are prone to blurring and irregularity, posing compliance risks.

• Brand Value: Laser marking supports personalization and traceability codes, enhancing product differentiation and brand premium, helping brands escape “price wars.” Traditional marking cannot achieve these features, weakening competitiveness.

• Market Recognition: Consumers increasingly value quality and traceability. Jewelry with laser-marked traceability codes and personalized markings enjoys higher market recognition and repurchase rates. Data shows brands with laser marking see 15%-20% higher annual market share growth than those without.

6.5 Environmental & Safety Gap: Modern Compliance vs. Phase-Out Risk

• Environmental Requirements: Laser marking produces no wastewater, residue, or noise pollution, meeting environmental regulations without extra investment. Traditional chemical etching generates waste liquids, mechanical stamping produces excessive noise. With stricter regulations, these traditional methods face obsolescence.

• Operational Safety: Laser marking includes safety devices (protective goggles, interlock systems), with no chemical exposure, protecting workers’ health. Chemical etching involves strong acids/bases, posing burn risks; mechanical stamping carries crush hazards—both have significant safety concerns.

Summary:
Laser marking machines are not just efficiency tools; they are also cost control tools, brand upgrade tools, and compliance assurance tools. Their comprehensive advantages over traditional marking make it increasingly impossible for jewelry factories to return to low-efficiency, high-cost, low-quality traditional methods. This technological iteration drives industry development and is a core choice for jewelry companies to remain competitive in a highly competitive market.