20W Fiber Laser Engraver

A 20W laser marking machine is an ideal tool for jewelry designers and manufacturers looking to create precise and personalized engravings. This compact yet powerful machine can engrave a wide range of jewelry styles with incredible accuracy and detail. From custom name necklaces, intricate ring patterns, and symbolic pendants to luxury watch backplates, charm bracelets, and earrings, the 20W laser excels in adding logos, serial numbers, personal messages, and decorative motifs. It’s perfect for working with gold, silver, stainless steel, and titanium, making it suitable for both mass production and bespoke pieces. Whether you’re crafting minimalist monograms or complex floral patterns, this machine ensures clean lines and permanent marks without damaging the surface. Its ease of use and low daily operating costs also make it a valuable investment for both beginner jewelers and experienced professionals seeking to elevate their brand with high-quality engraving capabilities.

1.1, Examples of engraving patterns: patterns, logos, QR codes, personalized letters, etc.

Native platinum and platinum alloys can be found in concentrated sand and gravel beds called placer deposits. The sand and gravel beds are created when old rock is eroded from its source and further ground into pieces as it is washed into streams and rivers. Most

1.2, Examples of engraving on special materials (platinum, silver, gold, titanium)

• Platinum:

  • Fine wedding band inscriptions (e.g., initials, wedding date)

  • Microscopic serial numbers for authentication

  • Elegant floral or filigree patterns on engagement rings

• Silver:

  • Brand logos and hallmarks indicating silver purity (e.g., 925)

  • Personal messages like “Forever Love” or “Best Friends”

  • Artistic patterns or vintage-style frames on pendants and coins

• Gold:

  • QR codes for gold bar verification and traceability

  • Cultural or religious motifs (e.g., Om symbol, zodiac signs)

  • Luxury branding on high-end watches or bracelets

• Titanium:

  • Tech-style engravings for modern jewelry and accessories

  • Medical alert info (e.g., allergies, blood type)

  • Laser-deep engraving for sports rings or military tags

1.3, Branding value brought by laser engraving

Laser engraving offers tremendous branding value across various industries, especially in the jewelry sector. It allows for the precise and permanent marking of logos, brand names, and custom designs directly onto valuable materials such as gold, silver, platinum, and titanium. This not only enhances product authenticity and professionalism but also helps build customer trust. Personalized engraving—such as initials, dates, or symbols—adds emotional value, encouraging brand loyalty and repeat purchases. Moreover, the ability to engrave unique serial numbers or QR codes supports traceability and anti-counterfeiting, further reinforcing a brand’s reputation for quality and innovation.

The 20W laser marking machine, with its exceptional precision and compatibility with various metal materials, has become an ideal choice for the metal crafts and gift customization industry. It is perfectly suited for high-precision engraving on precious metals such as stainless steel, gold, silver, and titanium, and can easily achieve permanent markings like QR codes, logos, text, and patterns, ensuring each product is unique. With its compact size and low energy consumption, it’s ideal for small studios and custom workshops. Easy to operate and low in maintenance cost, it significantly enhances production efficiency and creative flexibility. For manufacturers pursuing personalized, high-quality metal gifts, the 20W laser marking machine is a powerful tool for increasing product value and brand competitiveness.

2.1, How to engrave metal gifts, key chains, lighters, medals, etc. in batches

Step-by-Step Guide to Batch Engraving Metal Gifts

1. Choose the Right Laser Marking Machine
Use a fiber laser marking machine (e.g., 20W or 30W) that is specifically designed for metal materials. Fiber lasers provide high precision and fast engraving speed, making them ideal for batch production.

2. Design Your Artwork
Use graphic design software such as Adobe Illustrator or CorelDRAW to create your logo, text, QR code, or decorative patterns. Export the design in a compatible format (usually DXF, PLT, or SVG).

3. Import the Design into the Laser Software
Use the laser machine’s control software (e.g., EZCAD) to import your design and adjust the position, size, and engraving parameters such as power, speed, and frequency.

4. Prepare a Fixture or Jig
To engrave in batches, prepare a custom fixture (jig) that holds multiple items in place at once—e.g., 10 or 20 keychains laid out in a grid. This ensures consistent alignment and speeds up the process.

5. Adjust Focus and Positioning
Manually or automatically adjust the laser’s focal length to match the height of the items. Double-check the layout using the “preview” or “frame” function in the software to avoid misalignment.

6. Start Batch Engraving
Once everything is aligned and parameters are set, begin the engraving process. The laser will automatically engrave each item in sequence without the need for manual repositioning.

7. Post-Processing (Optional)
If needed, clean the engraved items using alcohol wipes or ultrasonic cleaners to remove any debris or discoloration.

2.2, Engraving depth and clarity display comparison

When it comes to laser engraving, depth and clarity are two critical factors that determine the final quality of the mark—especially on metal surfaces like gold, silver, stainless steel, and aluminum.

Engraving Depth vs. Clarity Comparison:

• Shallow engraving offers a clean and polished look, ideal for luxury gifts, jewelry, or branding logos where precision is key.

• Deep engraving provides a tactile, rugged feel—perfect for awards, heavy-use keychains, or outdoor gear needing long-term durability.

By adjusting laser power, frequency, and speed, operators can balance both depth and clarity to meet different design needs in batch production.

2.3, How to achieve batch automatic numbering or barcode marking

1. Use Software with Variable Data Function

Most laser marking machines, especially fiber laser machines (like the 20W model), come with software such as EZCAD that supports variable data marking. This allows automatic changes between each engraving in a batch—ideal for serial numbers, barcodes, or QR codes.

• ✔ Import an Excel or CSV file with pre-set numbers/barcodes

• ✔ Or, set up auto-increment rules (e.g., 0001 → 0002 → 0003…)

• ✔ Software will update the content automatically for each item

2. Set Up a Fixture or Jig for Batch Positioning

To engrave multiple items like keychains, medals, or lighters:

• ✔ Use a custom fixture to position several items at once

• ✔ The laser head will mark each piece sequentially, guided by the software

3. Barcode or QR Code Generation

• Built-in tools can generate standard barcodes (e.g., Code128, EAN) or QR codes

• Input data can be dynamic (from serial numbers or text entries)

• The laser engraver ensures high-contrast, scannable code results on metals

4. Test for Depth and Clarity

• Adjust laser speed, power, and frequency for optimal barcode/serial marking clarity

• Ensure readability by scanners and long-term durability on metal surfaces

The 20W Laser Marking Machine is widely applied in the electronics industry due to its high precision, fast marking speed, and permanent, wear-resistant results. It is commonly used for marking serial numbers, barcodes, QR codes, logos, and technical specifications on electronic components such as circuit boards, connectors, mobile phone shells, batteries, and chips. Its non-contact process ensures that even delicate or heat-sensitive materials like plastic or metal-coated surfaces are not damaged. Furthermore, the machine supports automated integration with production lines, enabling continuous and efficient batch processing.

3.1, Engraving serial numbers, QR codes, and CE marks on electronic components

3.2, How to ensure micro-engraving accuracy

 1. Use a High-Precision Laser Source

• Choose a fiber laser, especially a 20W or higher MOPA laser, which offers a fine beam diameter for detailed work.

• Ensure the machine has high beam quality (M² close to 1) for sharper, cleaner lines.

 2. Fine-Tune Focal Distance

• Use an autofocus system or precise Z-axis adjustment to ensure the laser is always focused exactly on the surface.

• An incorrect focus can blur or distort micro details.

 3. Optimize Marking Parameters

• Use lower marking speeds and higher frequency settings for better control and depth.

• Adjust power output, pulse width, and line spacing (hatch distance) to prevent over-burning or loss of detail.

 4. Use High-Resolution Software

• Work with laser control software that supports vector-based precision drawing, 0.001 mm resolution, and advanced barcode/QR code generation.

 5. Stable Work Platform

• Ensure the machine has a vibration-free structure and is placed on a level surface.

• Even small vibrations can compromise accuracy at micro scale.

 6. Microscopic Inspection & Testing

• Use a microscope or magnifier to inspect test engravings.

• Make calibration adjustments based on the micro inspection results.

 7. Material Considerations

• Different materials react differently to lasers. Ensure the material surface is clean and smooth for best micro-engraving results.

• Pre-test different materials to find optimal engraving settings.

3.3, Application techniques of laser marking on plastics and aluminum alloys

1. Plastics

Laser marking on plastics depends heavily on the type of plastic and any additives (like pigments or fillers). Common plastics include ABS, PC, PP, and PVC.

Techniques:

• Use fiber or UV lasers depending on the plastic type. Fiber lasers work well with darker or filled plastics, while UV lasers are better for sensitive or transparent materials.

• Adjust frequency and speed: Higher frequencies create more heat, which may cause melting. Balance speed and frequency to avoid deformation or discoloration.

• Foaming and color change marking: Instead of engraving, the laser modifies the surface to create a contrast—ideal for barcode and logo marking.

2. Aluminum Alloys

Aluminum alloys are widely used in electronics, automotive, and aerospace.

Techniques:

• Use fiber lasers (20W or higher) for clean, high-contrast engraving.

• Black marking on anodized aluminum: Adjust pulse duration and frequency to remove the anodized layer and create deep black contrast.

• Ensure optimal focus and low-speed/high-power settings for deeper engravings like serial numbers or logos.