Plastic Engraving Machines

Looking for the ideal solution to mark your plastic parts? Whether you need high-contrast QR codes, permanent serial numbers built to last the product's lifecycle, or vibrant colored logos, there's a plastic engraving machine perfectly suited to your needs.

At Automator, we manufacture all major marking technologies in-house, enabling us to guide you toward the perfect system for your specific materials, components, and production line requirements.

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On this page:

• How to choose the right plastic marking machine
• Plastic marking technologies
  • Laser marking
  • Dot peen marking
  • Scribe marking
  • Hot marking
  • Impact marking
  • Roll marking
• Which plastics can you mark?
• Plastic marking applications
• Why choose Automator for plastic marking

How to choose the right plastic marking machine

The right plastic marking machine depends on three things: what the mark has to do, which plastic you are working with, and how your production runs. Answer these questions and the choice gets much simpler.

What does the mark need to do?

Start from the result you need, not from the technology:

• Codes that must be scanned (QR, DataMatrix, barcodes): you need sharp contrast and fine detail. Laser is usually the best fit.
• Marks that must survive wear, painting or harsh handling: a mark with real depth works better. Dot peen and scribe marking engrave into the surface.
• Colored or decorative marks (logos, branding): hot marking transfers color from a ribbon onto the part.
• Simple, repetitive marks at low cost (logos, lot numbers on hard plastic): impact marking does it in a single stroke.
• Round parts in large batches: roll marking marks the full circumference quickly.

Want to understand how a laser actually interacts with different surfaces? Our guide to laser marking types and materials explains it in plain terms.

Which plastic are you marking?

Plastics do not all react the same way. Some absorb laser light well and give a crisp, dark mark; others need a different laser source or a mechanical method. Very soft materials that absorb impact are not a good match for dot peen.

For example, PC and PVC respond well to fiber lasers, while PET is a poor match for a standard fiber laser and is better handled with another method. If you are unsure, the simplest solution is to have your part tested.

How many parts, and where?

• High volumes on an automated line: integrated laser sources or line-mounted dot peen markers keep pace with production.
• Small and medium batches: a benchtop machine or a class 1 laser workstation is easy to place in any department.
• Large, heavy or fixed parts: when the part cannot move, the marker has to. Portable laser and portable dot peen markers are made for this.

Safety and working environment

If the machine will work close to operators, safety comes first. Class 1 laser systems enclose the beam, so the operator is protected during normal use. Automator also offers a portable laser marker in safety class 1, a configuration that is not easy to find on the market and lets you mark large parts freely without a dedicated laser room.

Noise matters too: scribe marking is one of the quietest mechanical methods, which makes it a good fit for shared workspaces.

Quick comparison: the right technology for your needs

Plastic marking technologies

Here is a closer look at each technology, what it does best on plastic, and which plastic marking machines to explore.

Laser marking

Laser marking modifies the surface of the plastic with a focused beam, without touching the part. It is the go-to choice for crisp codes, logos and serial numbers. Automator offers fiber, MOPA and green laser sources, compact class 4 units for integration, class 1 workstations and a class 1 portable marker for large parts.

Strengths on plastic:

• Non-contact: no pressure or mechanical stress on the part
• High contrast for codes that scanners read reliably
• No inks, labels or solvents to buy
• Permanent marks that resist abrasion and chemicals
• Works on many common plastics, including PC and PVC

Dot peen marking

Dot peen marking uses a stylus that creates a series of tiny dots on the surface, forming text, logos and 2D codes. It works on most rigid plastics and comes in benchtop, line-integrated and portable versions, including battery-powered models.

Strengths on plastic:

• Marks with real depth that stay readable over time
• Compatible with ABS, PA, PC, PE, PET, PMMA, POM, PBT and PP
• Benchtop, integrated and portable versions
• Cost-effective for permanent identification

Scribe marking

Scribe marking engraves a continuous line with a hard tip, giving clean, deep and elegant marks. It is one of the fastest and quietest mechanical methods, ideal for rigid plastics.

Strengths on plastic:

• Continuous, clean lines for text and logos
• Low noise, comfortable for operators
• Deep marks on rigid plastics
• Large marking area in a compact unit

Hot marking

Hot marking uses a heated head to press the mark into the surface, with or without a colored ribbon. It is a simple and fast way to add color and contrast to plastic and other heat-sensitive materials.

Strengths on plastic:

• Colored marks thanks to transfer ribbons
• Made for heat-sensitive materials such as plastic
• Precise temperature control for consistent results
• Simple and fast to set up

Impact marking

Impact marking engraves the mark in a single, controlled stroke using a type holder or punch. It is a proven, economical way to mark logos and codes on hard plastics.

Strengths on plastic:

• One stroke: fast and repeatable
• Low cost per mark
• Benchtop or integrated versions
• Best suited to hard plastics

Roll marking

Roll marking transfers the mark by rolling a die against the part, or the part against the die. It is the most efficient way to mark curved surfaces and cylindrical parts made of hard plastic.

Strengths on plastic:

• Marks the full circumference of round parts
• High productivity on large batches
• Manual and electropneumatic versions
• Uniform pressure for consistent results