Laser Part Marking for Small Manufacturers: How to Choose an In-House System

Small manufacturers often face a simple but costly marking problem: production volumes may be too small for a dedicated automated marking line, while outsourcing every batch adds setup fees, minimum-order requirements, shipping costs, and lead time.

For CNC shops, job shops, toolmakers, electronics manufacturers, and custom-part businesses, bringing laser part marking in-house can make small-batch production more flexible. Serial numbers, part numbers, QR codes, logos, scales, and other identification can be marked directly onto the workpiece without creating new tooling for every design change.

The right laser marking machine depends on five main factors: material, marking result, part size and geometry, production volume, and required cycle time.This guide explains how small manufacturers can evaluate laser marking systems, choose between fiber, UV, and CO₂ lasers, and determine whether bringing marking in-house makes economic sense.

Is In-House Laser Marking Right for Your Business?

You may benefit from bringing marking in-house if you regularly:

• Small-batch production

• Multiple part numbers or custom designs

• Serial, QR, or traceability marking

• Frequent design changes

• High outsourcing costs or long lead times

With an in-house system, the workflow can be as simple as:

Prepare the file → position the part → focus → mark → inspect → change the job.

With an in-house laser marking system, you can reduce outsourcing costs and lead times while gaining greater flexibility to handle small batches, custom orders, and frequent marking changes.

What Can You Mark on Industrial Parts?

Laser part marking is commonly used for identification, traceability, branding, and functional markings.

Typical applications include:

• Part numbers: identify individual components or provide unique product identification

• QR codes and Data Matrix codes:  identify products, tools, or inventory to support traceability and production tracking

• Logos and graphics: add permanent company or product information

• Scales and graduations: mark tools, instruments, and measurement components

• Asset IDs: identify tools, fixtures, equipment, and replacement parts

The marking itself can range from a light surface change to material removal and deep engraving. This distinction is important when selecting a laser.

What Kind of Mark Do You Need?

Before choosing a laser type or power level, define the required marking result.

The required result determines the best laser type or power level.For a serial number or QR code, deep engraving may be unnecessary.

For molds, dies, tools, or components requiring a recessed identification, deeper engraving may justify a higher-power system.

Marking Type	How It Works	Typical Applications
Surface Marking	Changes the appearance of the surface without significant material removal	Serial numbers, part numbers, logos, QR codes, Data Matrix codes, identification text
Engraving	Removes material to create a visible recessed mark	Tool identification, functional markings, logos, text, graduations, industrial components
Deep Engraving	Removes a larger amount of material, usually through multiple passes	Molds, dies, tools, and components requiring substantial material removal
Color Marking	Produces controlled color or tonal changes on the material surface	Stainless steel, titanium, and other suitable metals

Define the marking result first, then choose the laser.

surface marking	deep engrave	color engrave

What Materials Can Be Laser Marked?

The appropriate laser source depends on the material, surface condition, and required marking result.

Metals

Common industrial metals include stainless steel, carbon steel, tool steel, aluminum, brass, copper, and titanium. Fiber lasers are commonly used for metal marking, engraving, and identification.

Plastics and Resins

Plastics require more application-specific testing. ABS, PC, PP, PA, and other engineering plastics can behave differently depending on polymer composition, additives, color, surface finish, coating, and required contrast.

UV, fiber, and CO₂ lasers may all be suitable for different plastic applications. UV lasers can be particularly useful when fine detail and controlled heat input are important.

Glass and Ceramics

UV and CO₂ lasers can be used for different glass and ceramic applications depending on the material and required surface finish. Fine frosted or contrasting marks are common requirements.

Wood and Other Non-Metals

Wood, acrylic, leather, paper, films, and coated materials can also be laser processed. CO₂ systems are commonly considered for many organic and non-metal materials.

How to Choose Your Laser Marking System in 7 Steps

1. Match the Laser to Your Material

Start with the material and required marking result.

Material grade, coating, additives, and surface treatment can affect the result, so test the actual production material before purchasing.

2. Select Power Based on Depth and Cycle Time

Choose power based on how much material you need to remove and how quickly you need to process each part.

For surface marking and identification, 20W~30W fiber laser power may be sufficient. For deep engraving, large engraved areas, 50W+ higher power will increase efficiency.

For example, a ComMarker test engraving a 10 mm diameter circle to approximately 1 mm depth on aluminum took about 7 minutes with 100W and 2.6 minutes with 200W.

3. Size the Marking Area to Your Parts

Choose a marking field that accommodates your largest typical marking area without unnecessary repositioning.

A larger field is useful for large parts or marking multiple small parts in one setup, but it is not automatically better. Lens selection also affects working distance and marking performance.

4. Match Resolution to the Mark

Fine text, QR codes, Data Matrix codes, logos, and scales require appropriate optical performance, focus, and parameter control.

Do not select a machine based on spot size alone. The finished mark also depends on the material, lens, focus, laser parameters, and processing strategy.

5. Add Accessories Based on Part Geometry

Choose accessories according to how the parts need to be positioned.

For curved surfaces with significant height variation, consider 3D marking or dynamic focusing.

6. Check the Software and Production Workflow

For small-batch production, prioritize software that makes it easy to save jobs, change files, manage parameters, and generate variable data such as serial numbers, QR codes, and barcodes.

ComMarker systems support software options including LightBurn, while selected models also support ComMarker Studio.

Before purchasing, make sure the complete workflow—from file preparation to part positioning and marking—fits your operators and production process.

7. Laser Safety and Workspace Requirements

Check the enclosure, interlocks, ventilation, fume extraction, fire protection, operator training, and local safety requirements. Higher-power open-beam systems generally require more extensive safety controls than enclosed systems.

Fiber vs. UV vs. CO₂: Which Laser Should You Choose?

These categories provide a starting point. The actual result depends on the material, surface treatment, marking requirement, and machine configuration.

ComMarker Fiber Laser

ComMarker fiber laser systems are designed primarily for metal marking and engraving, including stainless steel, aluminum, carbon steel, brass, copper, and titanium.

They are suitable for applications such as part numbers, serial numbers, logos, QR codes, identification marks, and engraving. Higher-power configurations can also be used for deeper engraving and larger material-removal applications.

MOPA Fiber Laser

MOPA fiber systems provide greater control over pulse parameters than standard fiber configurations, making them suitable for applications requiring more specialized processing.

Typical applications include stainless-steel color marking, black marking, annealing, fine metal marking, and deep engraving.

The ComMarker Titan is available in MOPA fiber configurations, including 60W, 100W, and 200W, with larger marking fields available depending on the lens and configuration.

Case 1: Carbon Steel Tube Engraving

Laser: ComMarker Titan MOPA fiber 200w

Application: Number marking on a cylindrical metal part

Parameters: 90% power, 4,000 mm/s, 190 kHz, 200 ns pulse width, 0.04 mm hatch spacing

Result: High‑precision laser engraving, crisp text and part‑number marking.

Case 2: Deep Stainless-Steel Engraving

Laser: ComMarker Titan 200W MOPA fiber

Application: Deep engraving

Parameters: 1,000 mm/s, 90% power, 30 kHz, 350 ns Q-pulse, 0.05 mm line interval, bidirectional + crosshatch

Result: Precision laser engraved ornate hollow cross pattern on brushed stainless steel.

Case 3: Stainless Steel Wire Engraving

Laser: ComMarker B6 MOPA fiber 200w

Application: Number marking on 2.5mm thin wire

Parameters: 1000 mm/s, 90% power, 0.01 mm line interval, 30 freq, 200 pulse.

Result: Clear number marking with touchable depth

ComMarker UV Laser

ComMarker UV systems use a 355 nm wavelength for fine marking applications on materials that can be difficult to process cleanly with longer-wavelength lasers.

The ComMarker Omni X is designed for applications involving plastics, glass, ceramics, electronics, coated materials, and selected metals where fine detail and controlled heat input are important.

With 0.0019 mm spot size, the Omni X can mark with 16K HD, with smallest readable mark on aluminum around 0.03mm.

Case 1: Glass / Crystal

Laser: ComMarker Omni X 6W UV

Application: Fine logo engraving

Parameters: 40 kHz, 1 μs pulse width, 800 μs dwell time, 400 DPI, 150 mm lens

Result: Even, tightly‑packed stippled dots deliver homogeneous frosted matte surface; text are sharply defined with clean edges.

Case 2: Plastic Switch

Laser: ComMarker Omni X 6W UV

Application: Fine logo or identification marking

Parameters: 1 pass, 1,000 mm/s, 40 kHz, pulse 15, 0.03 mm line spacing

Result: Precision laser marking of intricate circuit schematic on white plastic housing.

Case 3: QR Code Marking on Metal

Laser: ComMarker Omni X 12W UV

Application: Fine logo or identification marking

Parameters: 1 pass, 2000 mm/s, 40 kHz, pulse 1, 0.03 mm line spacing

Result: Clear QR code with crisp edges, precisely marked on metal in a compact 5 × 5 mm size.

ComMarker CO₂ Laser

ComMarker CO₂ systems are designed for wood, acrylic, leather, paper, and other non-metal materials.

They are suitable for applications such as logos, text, decorative graphics, and engraving. A compatible rotary attachment can extend the system to curved or cylindrical workpieces.

Case 1: Wood Component

Laser: ComMarker CO₂ + R5 Rotary

Application: Logo engraving

Parameters: 1,000 mm/s, frequency 12, 40% power, 0.03 mm line distance, 1 pass, 200 mm lens

Result: Precision cursive‑script laser engraving on curved natural wood.

When Does In-House Laser Marking Make Financial Sense?

Compare your actual outsourcing cost with the cost of running the machine internally.

Cost	Outsourcing	In-House
Setup fee	May apply	Usually none
Minimum order	May apply	Small quantities possible
Shipping	May apply	No external shipping
Lead time	Supplier dependent	Potentially same-day
Design changes	May require new setup	Change files internally
Equipment investment	None	Required
Labor	Lower internal labor	Operator required
Maintenance	None internally	Required
Safety infrastructure	Supplier responsibility	Manufacturer responsibility

A simple break-even calculation is: Break-even batches = Machine investment ÷ Savings per batch

For example:

• Outsourcing: $0.80/part

• Setup: $75/batch

• Shipping: $30

• Batch size: 100 parts

• In-house variable cost: $0.10/part

• Machine investment: $1399

Outsourcing: $75 + $30 + (100 × $0.80) = $185

In-house: 100 × $0.10 = $10

Savings per batch: $185 − $10 = $175

Break-even: $4,000 ÷ $175 ≈ 8 batches

This is only an example. A real calculation should also consider labor, electricity, maintenance, fume extraction, software, and other operating costs.

Final Thoughts

For small manufacturers, the goal is to build a laser part marking workflow that matches the material, marking requirement, production volume, and operator environment.

For metal parts, fiber lasers are often the starting point.

For fine marking on metal, plastics, glass, ceramics, and other heat-sensitive materials, UV can provide an advantage.

For wood, acrylic, leather, and other non-metals, CO₂ can be a better fit.

Part geometry matters just as much. Flat parts are straightforward, cylindrical components may require rotary equipment, and complex three-dimensional surfaces can require advanced focusing or height-mapping solutions.

Economics matter too. If your business repeatedly outsources small batches, calculate the real cost of setup fees, minimum orders, shipping, lead time, and design changes against the cost of operating a machine in-house.

Not sure which laser fits your parts? Explore ComMarker laser engravers and find the right machine for your workshop.

Frequently Asked Questions

Can I Mark Different Part Numbers Without Changing the Setup?

Yes. Variable-data software can update serial numbers, QR codes, barcodes, and other production data without redesigning the layout. Database and barcode integration can further reduce manual entry.

Can One Laser Mark Flat and Cylindrical Parts?

Yes. Flat parts can be marked directly, while tubes, rings, and shafts may require a rotary attachment. Check diameter, weight, fixture compatibility, and marking area before choosing one.

Do I Need a Rotary for Tubes?

Not always. A rotary is recommended for circumferential or 360° marking and helps maintain consistent positioning on curved surfaces.

When Should I Choose an Enclosed or Automated System?

A compact workstation suits manual low-volume production. As volume increases, enclosed workstations, rotary tables, programmable axes, variable data, and automation can improve safety, repeatability, and throughput.