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NEWS

Dot Peen Marking Explained – A Beginner’s Guide to Permanent Part Marking

6/18/2025

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By Bernard Martin
Dot peen marking is a highly versatile and reliable method for industrial part identification, providing permanent, legible, and tamper-resistant marks. This marking technology has evolved significantly over time to address  it's own limitation and challenges while ensuring traceability and compliance.

​This article explores the origins, functionality, advantages, limitations, and modern developments of dot peen marking to provide a comprehensive understanding for those researching this technology.
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Origins of Dot Peen Marking
Dot peen marking technology emerged as a durable and cost-effective solution for industrial part identification. Prior to its development, manufacturers relied on manual engraving, stamping, and other marking methods, which often lacked precision, consistency, and efficiency. The need for a marking solution that provided permanent, legible, and tamper-resistant marks across various materials led to the advent of dot peen marking.

How Dot Peen Marking Works
Dot peen marking utilizes a pneumatically or electrically driven stylus to create a series of closely spaced dots that form alphanumeric characters, symbols, logos, or 2D Data Matrix codes. Unlike traditional engraving, which involves continuous line marking, dot peening uses controlled impacts to indent the surface without material removal. This process ensures durability while maintaining the integrity of the component.

Dot peen technology is versatile, capable of marking components and materials with hardness levels up to 59RC.

System configurations vary, including stand-alone bench models, handheld units, and fully integrated production line solutions, allowing for adaptability across different manufacturing environments. This adaptability makes dot peen marking an essential tool for industries requiring permanent, high-precision identification.


The Problems Dot Peen Marking Solved
The introduction of dot peen marking addressed several challenges faced in industrial part identification. One of the most significant advantages was permanence. Traditional ink-based or adhesive labels could wear off over time, whereas dot peen markings remained visible even under harsh environmental conditions.

Additionally, tamper resistance became a crucial factor, as dot peen markings are physically etched into the material, making them difficult to alter or remove. The automation and repeatability of the process also played a key role in its widespread adoption.

Manual marking processes often resulted in inconsistencies, but dot peen technology allowed for programmable, repeatable marking with high accuracy. Furthermore, its versatility enabled application across a wide range of materials, including metals, plastics, and hardened surfaces, making it an ideal solution for various industries.


Limitations of Dot Peen Marking
Despite its many benefits, dot peen marking also came with certain limitations. One of the primary concerns was surface deformation. Since the process relies on impact-based marking, it could introduce stress on thin or delicate materials, making it unsuitable for some applications.

Another drawback was the noise and vibration produced by the pneumatic or electromagnetic actuators, which could be disruptive in precision manufacturing environments. Additionally, dot peen marking had limited effectiveness on non-conductive materials, as it required a degree of surface hardness to create indentations.

Lastly, speed constraints were a consideration. Compared to laser marking, dot peen was relatively slow, particularly when marking complex designs or high-density 2D codes.


Evolution and Advancements in Dot Peen Technology
To overcome these limitations, dot peen marking systems have evolved in several ways. The introduction of electromagnetic actuation has allowed for more precise control, reducing the risk of excessive deformation on delicate materials. Advances in software have made a significant impact as well, enabling automated serialization, barcode generation, and database connectivity, which enhances traceability and efficiency.

The development of portable and handheld systems has expanded the use of dot peen marking beyond stationary environments, allowing field applications where traditional marking systems would be impractical. Additionally, manufacturers have explored hybrid systems that combine dot peen with laser or inkjet technologies, providing a balance between deep marking and high-speed coding. By integrating these advancements, dot peen marking has continued to refine its effectiveness for modern industrial applications.


The Status of Dot Peen Marking Today
Today, dot peen marking remains a widely used method for permanent marking in industries such as aerospace, automotive, medical device manufacturing, and industrial machinery. It is particularly valued for applications requiring deep, tamper-resistant marks that endure extreme conditions.

While laser marking has gained popularity due to its speed and non-contact nature, dot peen continues to be the preferred choice for applications demanding robust, long-lasting identification. With ongoing improvements in automation, connectivity, and material compatibility, dot peen marking continues to be a critical part of modern manufacturing’s traceability and compliance requirements.

Businesses looking to implement an efficient marking solution should consider how dot peen technology aligns with their industry needs, ensuring long-term durability and traceability in their manufacturing processes.

Ask the experts
Leading Marks offers a comprehensive range of dot peen marking solutions to meet your industrial identification needs. Our featured products include the Technomark Multi4, a versatile 4-in-1 system adaptable for various applications, and the Tapmatic TapWriter, designed for seamless integration with CNC machines. Additionally, we provide the Gravotech XM500, a portable dot peen marker ideal for marking large or difficult-to-access parts.

To explore how these advanced dot peen systems can enhance your production process, improve traceability, and ensure compliance, contact Leading Marks today. Our team of experts is ready to assist you in selecting the perfect marking solution tailored to your specific requirements.
This article is part of the Fundamentals Series, a collection of in-depth guides covering essential marking technologies and processes. Explore the full series here to gain deeper insights into industrial marking solutions.
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The Technomark Tempo: The Future of Integrated Marking?

1/15/2025

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by Bernard Martin
Tecnomark Tempo in line marking automation Leading Marks
Technomark has introduced Tempo, an innovative integrated marking solution designed for high-performance and traceability in industrial settings. The Technomark Tempo is a state-of-the-art marking system designed to seamlessly integrate into production lines. With its compact size and advanced capabilities, Tempo delivers high-precision, permanent markings for traceability and compliance in industries such as aerospace, automotive, and medical devices.

Technomark's Tempo integrates smoothly into existing production environments, interfacing with PLCs and other automation systems. Its compact and modular design allows for flexible installation, minimizing disruption to workflows. Tempo, part of the Inline.series, is an electromagnetic dot peen marking machine tailored for automated environments. The versatile marking head can be mounted on three sides, and the rack-mountable controller simplifies installation. The system features ergonomic software developed in-house, a 16-channel card, and Ethernet TCP-IP connectivity (Profinet and Ethernet IP). An integrated maintenance warning and prevention system further enhances operational efficiency by ensuring smooth, uninterrupted production.

Integration and Design
The Tempo system is distinguished by its ease of integration and compact design. The three-sided mounting capability of the marking head and the rack-mountable controller simplify installation. Removable and lockable cables, combined with 360° positioning, ensure the machine can adapt to a wide range of industrial environments.
Technomark Tempo   electromagnetic do peen marking network connectivity
Connectivity and Communication
Today's industrial environments demand advanced connectivity, and Tempo meets these requirements with Ethernet TCP-IP, Profinet, and Ethernet IP compatibility. These features enable seamless integration into automated production lines and reliable communication with other equipment, aided by an integrated switch function.

Performance and Durability
The Tempo system delivers adjustable marking depth and force, allowing it to work effectively on a variety of materials, from metals to plastics. High-contrast, permanent marks, including intricate data matrix codes, enhance traceability. The system operates at speeds of up to three characters per second and is designed for continuous 24/7 operation. Its anodized aluminum chassis, steel covers, and protective casing ensure durability, even in demanding industrial environments. This robust design minimizes maintenance requirements, maximizing uptime and productivity.

Applications in Key Industries
The Technomark Tempo has applications across several industries. In aerospace, it ensures stringent traceability for critical components. In automotive manufacturing, it complies with VIN and part marking regulations, improving quality control. For medical devices, it supports Unique Device Identification (UDI) to meet regulatory standards.

Benefits of Tempo
The system’s fast marking speeds and seamless integration streamline production processes. High-precision marks improve traceability, allowing for clear identification and tracking of parts throughout their lifecycle. Additionally, its minimal maintenance requirements translate into significant cost savings over time.

Tempo Inline series electromagnetic dot peen marking machine
How Tempo Compares
When compared to traditional marking methods, Tempo stands out for its versatility and cost-efficiency. While laser marking systems may offer similar results, they often require a higher initial investment and incur greater operational costs. Tempo provides a more accessible alternative, particularly for small to medium-sized operations, without compromising on quality or reliability.

Technomark Tempo offers a technically sound and efficient solution for integrated industrial marking. With its advanced capabilities, ease of integration, and robust performance, it positions itself as a strong candidate for the future of marking technology.

For a closer look at Tempo in action, watch the video below to see how this marking solution is the future of industrial marking systems. And don't forget that Leading Marks offers comprehensive support, from system selection to integration and after-sales service, ensuring that Tempo enhances your production workflow and quality standards.
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Spark Success at the 2023 Metalcasting Congress April 25-27

4/4/2023

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AFS Metalcasting Show Apri; 25 27 2023 Leading Marks Boss Buddy Casting Part Marking Booth 715
Metalcasting Congress returns to the Huntington Convention Center in Ohio on April 25-27, 2023 – and you can visit Leading Marks in Booth 715!
The Metalcasting Congress attracts attendees from across the foundry industry, as well as professionals from other businesses within the manufacturing supply chain.

​Nestled along Lake Erie’s southern shore, Cleveland is the second largest city in Ohio.  Huntington Convention Center of Cleveland is hosting Metalcasting Congress 2023, providing over 410,000 square feet of prime meeting and event space. The convention center is also just 25 minutes away from Cleveland Hopkins International Airport.

Leading Marks & Boss Buddy
​Booth 715

Leading Marks will be demonstrating the latest in part marking and identification technology.  ​ ​We will be featuring The Boss Buddy embossing system offering improved efficiency and improved legibility for pattern labeling.  ​
We will also be showcasing secondary marking requirements with direct-part marking systems and tools  such as dot peen, laser & stamps, ink marking, hand-held & automated systems, and thermal transfer labeling solutions.

We will also be discussing workbenches, air filtration, vision handheld scanners and in-line options, soldering irons, and machining accessories.


​Huntington Convention Center
Cleveland, OH
April 25 – 27, 2023
​Leading Marks Booth 715
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Fundamentals of  Dot Peen

5/25/2022

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This article is originally from Technomark entitled: "​What Is Dot Peen Marking?
Ask anyone inside the industrial manufacturing industry – part-marking is crucial to component traceability when working with large quantities.
And while several different types of part-marking exist, Dot Peen marking machines have been a preferred solution for many years.

At a high level, Dot Peen marking machines use either electromagnetic or pneumatic force to rapidly oscillate a stylus, in turn indenting the marks onto the surface of the part. 
​

One of the advantages of Dot Peen is that it’s very flexible and can be used in either manual or fully automated production lines. A lot of the applications Dot Peen serves are manual applications, however, with modular Dot Peen systems, you can start with a portable system and later convert it to an in-line system for integration with fully automated production lines
Fundamentals of Dot Peen Marking What is Dot Peen Leading Marks

The Basics of Dot Peen Marking

If you took apart a Dot Peen machine, one of the most important components you would find is a carbide or diamond-tip stylus.

The Dot peen process is considered a “low-stress” marking method because the mark is generated via material displacement rather than material removal.  The carbide stylus strikes the material surface to produce the mark via a series of cold-formed stamped dots. Compared to Laser Marking Systems, Dot Peen does not induce thermal shock to the part surface since the material is cold-stamped rather than super-heated to produce the mark.  

Dot Peen systems are commonly used by manufacturers in the aerospace and oil & gas industries where low-stress marking is required, such as tubular and flow control products that are exposed to extreme pressure differential in the oilfield. 

Dot Peen marking is viable for material hardness up to 63 HRC. Typically, when a part hardness is greater than 63 HRC, laser marking systems are recommended. 
​
All of Technomark’s Dot Peen machines rely on an electromagnetic solenoid to actuate the marking stylus. Dots are plotted in an X/Y plane via electronic control for precise placement of the Dot pattern. Using electromagnetic force versus pneumatic also provides a greater level of control of both the depth of the mark as well as the ability to mark contoured or complex surface.

Dot Peen Marking: Component Traceability In Action 

Dot Peen marking machines are utilized in almost every industrial-goods manufacturing operation, including: 
  • Automotive
  • Oil and Gas (pipes, fittings valves, other)
  • Aerospace
  • Defense
  • Metalworking (general purpose)
While these machines can run in-line and handle large quantities in an automated production environment, most are operated manually using a battery pack to go mobile. ​
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The best Dot Peen marking machines utilize a fully electric design and that doesn’t require compressed air to operate. 

All Technomark Dot Peen marking machines feature an 
Intelligent Driving Impact (IDI) function that allows for marking on many different materials and finishes.

The IDI function automatically adjusts and levels the stylus to the workpiece.

Whether the part has a curved, wavy, or complex geometry, the stylus will follow the contour of the marking surface while maintaining a constant depth of marking throughout. 
​
When structural integrity is crucial, 
Dot Peen marking provides a low-stress marking solution that removes no material when marking the part.

Why Choose Dot Peen Marking

One of the biggest benefits of a Dot Peen Marking Machine is its ability to efficiently produce marks compared to other marking systems. Other benefits of Dot Peen machines include: 
  1. Portability: battery-operated systems are ergonomic and perfect for smaller-scale operations or marking of large, heavy parts that cannot be transported to a fixed location for marking
  2. Versatility: state-of-the-art Dot Peen marking systems are modular and can start with a portable or manual marking system that can later be adapted to a fully automated production line
  3. Ease of use: Dot Peen machines are easy to program and do not require any advanced computing knowledge or technical training. 
  4. Permanency: Dot Peen marking process yields a permanent, indelible mark that can withstand harsh operating environments
  5. Economical: Compared to other marking systems, Dot Peen systems are typically less than $10,000.
Integrating a dot peen marking machine into your production line will improve the productivity and quality of the part-marking process.  
New and exciting dot peen innovations have just been introduced! Be on the lookout for machines that feature: 
  • Wireless connectivity between marking head and control (Network-able devices that are able to communicate to other devices through wireless communications)
  • On-board diagnostic tools to help the operator know when it’s time for scheduled maintenance — protecting your investment. 
If you have questions regarding Dot Peen machines or any part marking machines, contact us today. At Leading Marks, we have the experience to help you get the best solutions for your industrial marking needs.
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