Laser Engraving Service
MOLDITQUICK provides laser engraving as a value-added surface treatment for molded and machined parts — permanent serial numbers, logos and 2D codes with no consumables and no impact on part function.
Fiber Laser Marking (Metal)
2–50 W fiber laser engraving steel, aluminum, zinc, stainless and plated surfaces at 0.01–0.1 mm depth — permanent serials, logos and 2D codes.
CO2 Laser Engraving (Plastics)
High-contrast, sharp marks on ABS, PC, PA, acrylic and coated surfaces; ideal for logos, text and decorative graphics on molded parts.
UV Laser Cold Marking
Low heat input with 0.02–0.05 mm line width — marks sensitive polymers, glass and thin-walled parts without burn marks or discoloration.
Deep Engraving
0.1–0.5 mm cavity depth for permanent part identification, molds and tooling where the mark must survive wear and rework.
2D Data Matrix & QR Codes
Data Matrix (ISO/IEC 15415) and QR marking graded for readability — part-level traceability for medical, automotive and E/E programs.
What Is Laser Engraving?
Laser engraving uses a focused laser beam to mark a part surface by melting, vaporizing or chemically changing the material. Unlike printing or labeling, the mark is part of the surface itself — it cannot peel, fade or be removed, which is why laser engraving is the default for serial numbers, logos, QR codes and regulatory marks on parts that must be traceable for their entire service life.
Three laser types cover the full range of parts we produce. Fiber lasers engrave metals — steel, aluminum, zinc, stainless and plated surfaces — with dark, high-contrast marks. CO2 lasers mark plastics and coated surfaces with sharp, light-colored graphics. UV lasers work cold, making them safe for sensitive polymers, glass and thin-walled components. All three run with no consumables and no process chemicals, and marking adds no load to the part. Compared with pad printing or hot stamping, laser engraving offers unlimited flexibility — artwork can change between batches with a file update instead of a new die or plate. See thesurface finishing overview to compare options.
Key Parameters
Typical marking capabilities; depth, speed and contrast are tuned per material on first article.
| Parameter | Typical Range | Notes |
|---|---|---|
| Marking depth | 0.01 – 0.5 mm | 0.01–0.1 mm for marking, 0.1–0.5 mm for deep engraving |
| Line width | 0.02 – 0.3 mm | UV laser finest, fiber and CO2 wider |
| Marking speed | up to 7,000 mm/s | High-volume serial and code marking |
| Positioning repeatability | ±0.01 mm | Fixture-based marking of features |
| Code grading | ISO/IEC 15415 (DMC), ISO/IEC 18004 (QR) | Verified with a code reader on production |
Applications
Laser engraving is applied wherever permanence and traceability are required:
- Serial numbers, date codes and part numbers on molded and machined components.
- Data Matrix and QR codes for medical, automotive and E/E traceability chains.
- Logos and brand marks on metal and plastic parts, including plated and painted surfaces.
- Mold and tooling identification, including deep engraving that survives rework.
- Decorative graphics and technical legends on control panels and enclosures.
Marking is often the final step on parts from our injection moldingand CNC machining lines, closing the loop between production and traceability records.
Why MOLDITQUICK
MOLDITQUICK (Dongguan Guohong Precision) operates fiber, CO2 and UV laser cells in-house at its 10,000 m² plant with 280 employees under IATF 16949, ISO 13485 and ISO 9001. Because marking happens on the same floor as molding and machining, artwork is validated on real production parts and code quality is verified with readers before shipment.
We support serialized, part-level traceability for automotive and medical programs, and we deliver prototype and small batches in 7–12 days and mass production in 25–30 days, worldwide. Pair laser engraving with our othermanufacturing services for a single-source program.
Frequently Asked Questions
Is laser marking permanent?
Yes. Laser engraving removes or chemically alters surface material, so the mark cannot be wiped, peeled or washed off — it survives cleaning, solvents and normal handling for the life of the part.
Can you laser mark after plating or painting?
Yes. We regularly mark plated, anodized and painted parts — the laser can either engrave through the coating or mark the bare substrate before finishing, depending on the required contrast and durability.
What is the minimum mark size?
Characters down to about 0.3 mm and Data Matrix codes from 1 × 1 mm are achievable with fiber and UV lasers, verified with a code reader before shipment.
Will laser engraving damage thin plastic parts?
UV lasers mark with very low heat input, which prevents burn marks, charring and micro-cracks on sensitive thermoplastics and thin walls. Fiber lasers are preferred for metals.
Do you support part-level traceability?
Yes. We can mark each part with a unique serial or Data Matrix code, link it to molding/machining data, and provide reading verification for IATF 16949 and ISO 13485 traceability requirements.