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How to Transition from Labeling to Laser Marking: Lessons from Electronics Manufacturing

Choosing a new product identification technology is rarely an overnight decision. Before replacing an existing process, manufacturers must evaluate technical, economic, and operational factors. This practical example illustrates what that decision-making process can look like in practice.

Product identification requirements in electronics manufacturing have changed significantly in recent years. Increasing traceability requirements, a growing number of product variants, and the digitalization of manufacturing processes are prompting many manufacturers to reevaluate their current marking methods. Today, markings must be permanently readable as well as consistently reproducible and it has to be easy to automate the marking process. Industrial part marking provides the foundation for traceability, quality assurance, and digital manufacturing workflows.

When Does it Make Sense to Switch from Labels to Laser Marking?

There are many reasons to consider laser technology. A transition may be worthwhile when:

Scrap rates need to be reduced.
Traceability requirements continue to increase.
Permanent durability, reliable readability, and counterfeit protection are critical.
Product variety is growing and greater flexibility is required.
The effort associated with label management and consumables should be reduced.
Marking and quality control processes should become more automated.
Product identification needs to become part of digital manufacturing workflows.
Long-term total cost of ownership should be optimized.

The following example illustrates how an electronics manufacturer could approach a technology transition, from defining requirements and evaluating potential solutions to implementation.

Example Scenario: A Proven Solution Reaches its Limits

A manufacturer of connectors and plastic housings has relied on labels for product identification for many years. However, requirements are changing:

A major customer now requires an individual Data Matrix code on every product.
The company wants to trace every component back to its production batch.
Product identification should be more closely integrated with digital manufacturing and quality assurance systems.
Additional information must fit within the limited marking area available on connectors.
Codes must be reliably readable in downstream automated processes.
The number of product variants continues to increase.
As production volumes grow, scrap and rework become increasingly costly, making error reduction and process reliability more important.

As a result, production management raises a fundamental question:
Will labeling continue to be the best solution for future requirements?

7 Steps to Laser Marking:
Questions to Consider Before Making the Switch

Step 1: Define Requirements

The project team begins by analyzing its specific requirements.
Key questions include:

What information must be marked, and what cycle times are required?
What requirements must the marking meet, e.g.: readability, durability, contrast, scratch resistance, abrasion resistance, heat resistance?
What mechanical stresses and environmental conditions will the products face, and how might they affect the marking?
What role does marking play in traceability, quality assurance, and automation?
How can marking be integrated into production processes as efficiently and reliably as possible?
Which current and future requirements must be considered, including customer specifications, regulations, and sustainability goals?

Outcome: The analysis reveals that process reliability, traceability, and future readiness are just as important as marking quality. Sustainability is also a priority. Based on this assessment, the team concludes that alternative technologies should be evaluated.

Step 2: Evaluate Alternative Marking Technologies

Based on the requirements analysis, several industrial marking technologies are compared: continuing with labels, Continuous Inkjet (CIJ), pad printing and laser marking.

The evaluation shows that continuing with labels would not solve the existing challenges. Likewise, CIJ and pad printing do not provide the required combination of durability, flexibility, environmental and health protection, process integration, and long-term viability. Laser marking is selected for detailed evaluation because it addresses many of the identified requirements and offers the greatest potential for future needs:

Permanent direct part marking
Precise and reliably readable Data Matrix codes
Reduced consumables and associated maintenance requirements
Lower scrap rates and improved process reliability through vision-assisted marking
High flexibility
Easy integration with automation and digitalization options

Outcome: The project team decides to further evaluate the technical and economic feasibility of laser marking.

Step 3: Assess Technical Feasibility

The connectors and housings are primarily made of engineering plastics such as polyamide. The team must determine whether these materials can be laser marked with the required durability, contrast, and quality.

An additional challenge is that the plastic parts are produced in multiple colors. Because color and material composition can affect marking results, the markings must perform reliably across all product variants.

During application testing, all product variants are marked. Different laser technologies and parameter settings are compared. The results are then evaluated against the defined requirements for traceability, quality, and process reliability:

Mark quality, contrast, and speed
Data Matrix code readability
Mark durability
Consistent results across different materials and colors

Outcome: The testing indicates that the products can be laser marked reliably and to the required standards without additives while maintaining durability throughout the product lifecycle.

Step 4: Evaluate Economic Feasibility

What are the financial implications of switching technologies? To answer this question, the evaluation compares both initial investment costs and total cost of ownership (TCO), including:

Capital Investment
Costs for consumables, inventory, and procurement
Maintenance requirements
Costs associated with quality inspections, rework, scrap, and managing multiple marking variants

Outcome: While a laser system requires a higher initial investment than the existing labeling solution, ongoing costs for consumables, inventory management, and related administration are eliminated. Laser marking also significantly reduces maintenance, rework, and scrap. As production volumes increase, these savings further improve overall cost-effectiveness.

Step 5: Plan for Integration

The next step is determining how laser marking can be integrated into the existing production environment. Questions include:

Is sufficient space available for the laser system?
How complex will the mechanical integration be?
Which interfaces to machines and manufacturing execution systems are required?
How will marking data be provided?
What opportunities exist for automation?

Outcome: The assessment shows that modern laser systems can be integrated easily into existing production lines thanks to their compact design and flexible integration options. Standardized interfaces also support seamless connectivity with production management systems.

Step 6: Quality Assurance and Process Reliability

With labeling, improperly applied or damaged labels frequently require rework or replacement. For the production manager, reducing scrap and improving quality control efficiency are key objectives.

By combining marking and verification in a single process, laser marking with integrated machine vision systems helps improve quality assurance while enhancing process reliability through a stable, automated workflow. The project team therefore evaluates the benefits of a laser marking system with integrated vision capabilities:

How can errors, rework, and scrap be minimized?
How can inspection efforts be reduced?
How can code readability be verified and documented consistently?

Outcome: The team concludes that an integrated vision system delivers multiple advantages:

Automatic part detection reduces fixture and positioning effort.
Precise mark positioning ensures repeatable results across different part variants.
Immediate verification of codes and human-readable text ensures reliable readability.
Automated inspection and documentation reduce manual quality-control activities.
The system helps prevent errors before they result in rework or scrap.
Marking and inspection are part of a closed-loop workflow, improving both efficiency and process reliability.

Step 7: Plan the Transition

After confirming technical feasibility, economic viability, integration requirements, and process reliability, the company begins planning implementation.

One question becomes particularly important: How can the transition be completed as efficiently as possible without disrupting ongoing production?

Outcome: Since every manufacturing environment is different, the project team works with laser marking specialists to develop an implementation plan tailored to the facility's specific requirements. Based on the evaluation, a phased transition to laser marking emerges as the preferred implementation approach. This strategy allows organizations to gain experience under real production conditions while minimizing disruption to existing manufacturing operations.

From Labels to Laser Marking: The Benefits of Making the Switch

The successful implementation of laser marking in the first production line supports expanding the technology step by step to additional product families. The decision is driven by more than marking quality alone. Based on the evaluation, the manufacturer realizes additional benefits such as:

Permanently readable markings for reliable traceability
Lower operating costs
Reduced scrap rates
Improved process reliability

Ultimately, no single factor drives the decision. The key is determining whether laser technology can meet a manufacturer's requirements across all critical areas: technically, economically, and operationally.

Planning a Transition to Laser Marking: Key Takeaways

The path to the right marking solution starts with asking the right questions. Not every answer has to be available from the outset. What matters most is a structured evaluation process.

Requirements must be clearly defined before marking technologies can be evaluated effectively.
Technical feasibility should be verified through marking tests on original parts.
Economic viability should be assessed based on total lifecycle costs, not just capital investment.
Integration, data connectivity, and automation should be considered early in the process.
Marking and quality assurance should be viewed as interconnected processes.
A phased implementation approach reduces risk and simplifies technology adoption.

Checklist Is Your Current Marking Process Still the Right Fit?

Use this checklist to evaluate your process based on key operational criteria and identify opportunities where laser technology could improve efficiency, quality, and process reliability.

Download now

FAQ: Frequently Asked Questions About Transitioning from Labels to Laser Marking

Yes. In many industrial applications, labels can be replaced by laser marking. Instead of printing information on a label and applying it to the product, codes, serial numbers, and human-readable text are permanently marked directly onto the part using a laser.

This eliminates the need for consumables, reduces manual handling, and minimizes potential sources of error.

Thanks to advanced laser technology, virtually all industrial materials can be marked reliably. Whether a transition to laser marking is feasible depends on the specific marking requirements and application. In many cases, laser marking offers advantages in terms of traceability, cost efficiency, and sustainability, making it an efficient and future-ready alternative to labeling.

In many applications, yes. While the initial investment in a laser marking system is typically higher than that of a labeling solution, operating costs are often significantly lower over time. Costs for labels, ribbons, inks, and other consumables are eliminated. Many manufacturers also benefit from reduced maintenance, fewer material changeovers, less rework, and lower scrap rates.

When evaluating a transition, it is important to consider the total cost of ownership (TCO) rather than the purchase price alone. In many applications, laser marking delivers a positive return on investment over the lifetime of the system.

Virtually all industrial materials can be laser marked, including metals, plastics, glass, and coated surfaces.

This also includes challenging materials such as flame-retardant plastics, transparent plastics, and materials with or without laser-sensitive additives. The optimal laser source, whether fiber, UV, or CO₂, depends on the material, surface characteristics, and marking requirements.

In most cases, suitability can be assessed quickly through an application consultation.

During this process, factors such as the material, surface properties, marking content, and production environment are evaluated. Marking trials are then performed on original production parts to verify the technical feasibility of laser marking and identify the most suitable laser technology for the application.

The process typically begins with defining the application's basic requirements. During an initial consultation, laser marking experts review the material, product identification requirements, production environment, and integration needs. Application testing on original production parts is then performed to evaluate technical feasibility and assess the potential benefits of laser marking.

Based on the test results, manufacturers can determine the most suitable laser technology and develop a roadmap for implementation.

How to Transition from Labeling to Laser Marking: Lessons from Electronics Manufacturing

When Does it Make Sense to Switch from Labels to Laser Marking?

Example Scenario: A Proven Solution Reaches its Limits