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PINSTAMP® TMP4750 Dot Peen
Rugged, high-speed dot peen marking for industries
The TMP4750 delivers deep, permanent marking for VINs, metal parts, and industrial components with robust performance and reliability.
Dot peen marker optimized for mobile applications
In heavy industry, steel construction, or automotive manufacturing, production managers often face the same logistical problem: the component to be marked is large, heavy, or already permanently integrated into a system. Transporting it to a stationary machine would be time-consuming and costly. The logical solution is to bring the marking to the component.
This is exactly where the Telesis PINSTAMP® TMP4750 comes in. It is one of the proven solutions for portable dot peen marking in industrial environments. As a robust hand-held system, it combines the precision and power of a benchtop system with the flexibility of a mobile tool.
Whether you need to stamp a vehicle identification number (VIN) into a solid truck frame, mark steel beams directly on the construction site, or engrave pipelines in the oil and gas sector, this mobile marking system ensures permanent traceability (direct part marking – DPM) where other devices reach their limits. Find out why the TMP4750 is a proven hand-held dot peen device for deep and permanent marking.
Highlights
The TMP4750 Dot Peen Marker is a powerful, high-performance system built for deep, permanent marking on metals and industrial surfaces. Designed with a sturdy ergonomic handle, it provides maximum support during manual operation, helping reduce strain while maintaining accuracy. The TMP4750 adapts to any production need—use it handheld for mobile marking, mounted to a benchtop, or fully integrated into an automated line. Its rugged construction ensures durability in tough environments, and its high-speed pneumatic pin delivers clear, consistent marks ideal for traceability, compliance, and part ID across a wide range of industries.
“Floating Pin” Technology
A common problem with hand-held dot peen markers is handling on curved or uneven surfaces. Many competitors use a spring return the pin to its initial position. Due to varying marking distances, such as on the curved surface of a pipe, this spring is repeatedly compressed. This can cause the spring to break or the pin guides to jam, increasing wear on the marking system and resulting in uneven lettering.
Telesis (by Hitachi) solves this with floating pin technology:
- Dynamic height difference compensation: The pin glides on a cushion of air, which better compensates for uneven surfaces during marking.
- Tolerance compensation: The pin can handle distance changes of up to 6 mm.
- Recommended for pipes: You can mark curves without having to make complicated adjustments to the handheld device.
Models
- TMP4750/470
- TMP4750/520
Application Examples
- Trailer and VIN number marking
- Heavy equipment identification
- Pipeline and tool traceability
Advantages
- Deep, high-contrast marking
- Handheld, bench, or online
- Built for tough environments
Technical Keypoints
- Marking Window: 100 × 150 mm for VIN and industrial engraving.
- Handheld & Rugged: Built for mobile marking in tough environments.
- Pneumatic System: High-speed, deep marking for traceability.
- Curved Surface Capable: Ideal for pipes, tubes, and irregular shapes.
- Built for Demanding Sectors: Reliable marking for automotive, oil & gas, and industry.
Why choose a pneumatic handheld dot peen marking device?
When looking for a mobile pin marking device, you often have the choice between modern battery-powered devices and proven pneumatic systems. The TMP4750 deliberately relies on pneumatics (compressed air). The reasons for this lie in the physical requirements and the required quality standards.
High penetration depth thanks to pneumatics
Physical force is required for permanent metal marking that remains legible even after intensive further processing. If components are painted, hot-dip galvanized, or sandblasted after marking, surface markings often disappear.
The pneumatic drive of the TMP4750 drives the needle into the material with a high impulse force. This enables significantly deeper markings (up to 0.5 mm depending on the material) than purely electrically operated hand-held devices can achieve. The marking remains visible and legible “through the paint.”
Large marking field for complex data
Although the TMP4750 is a compact handheld device, it offers a generous marking field of 140 x 40 mm. This gives you the freedom to not only mark serial numbers, but also to apply comprehensive information in a single operation. The device is ideal for:
- Multi-line texts and logos.
- Long vehicle identification numbers (VIN) in one go.
- High-resolution DataMatrix codes (DMC) for automatic 2D code scanners.
Applications for portable pin markers
Our customers use the TMP4750 wherever heavy-duty performance is required and fine laser marking is not an option due to the harsh environment.
Automotive industry & commercial vehicles
Here, the VIN number (Vehicle Identification Number) is mandatory. It must be marked deeply enough to be forgery-proof and to last for the entire service life of the vehicle. The TMP4750 is used worldwide to mark chassis, trailer frames, and engine blocks directly on the assembly line or in the rework area.
Oil, gas, and pipes
This sector is characterized by extreme environmental conditions. Pipelines, flanges, and valves are often stored outdoors for years and are exposed to salt water or heat weathering. Mobile metal marking with the TMP4750 guarantees that batch numbers and heat numbers can still be identified even after years of corrosion.
Steel construction
Steel beams and profiles often have to be marked immediately after rolling or even on the construction site. The “floating pin” technology copes easily with the often rough surface finishes and scale.
Precision Marking for Every Industry
Ergonomics and handling in practice
Occupational safety and ergonomics are crucial when employees work with a portable dot peen marker all day long. A device that is too heavy leads to fatigue and errors.
The marking head of the TMP4750 weighs only approx. 3.9 kg and is perfectly balanced. For stationary continuous use on large components, the device also has an eyelet for spring balancers. This allows the device to be positioned “weightlessly.”
Additional accessories such as magnetic holders (to fix the device to steel beams) or V-blocks (for a secure hold on pipes) make operation safe and prevent slipping during the marking process.
Control and software
A dot peen marker is only as good as its control system. The TMP4750 works with proven Telesis controllers such as the TMC470 or the modern TMC520 touch controller.
- Self-sufficient operation: You don’t need a fragile laptop in the harsh workshop environment. Data is entered directly via the touchscreen or a membrane keyboard.
- WYSIWYG preview: The TMC520 display shows you the print image exactly as it will be marked. This prevents expensive rejects of high-quality components.
- Connectivity: Integrate the handheld device into your company network via serial ports, I/O, Profinet, or Ethernet allowing data to be sent directly from a PLC or Excel spreadsheet. Alternatively, connect a barcode scanner to scan the work order error-free.
Frequently asked questions (FAQ) about handheld dot peen marking machines
Is the TMP4750 also available in a stationary version?
The TMP4750 adapts to different production requirements. In addition to mobile applications, the dot peen marking machine can be used as a benchtop device for stationary applications or fully integrated into an automated production line. This versatility makes it the ideal solution for a wide range of industrial marking processes.
What materials is this dot peen marker suitable for?
The TMP4750 marks almost all metals (structural steel, stainless steel, aluminium , brass, cast iron) up to a hardness of approx. 62 HRC. Hard plastics can also be permanently marked.
What is the difference between dot peen marking and scribing?
In dot peen marking, the marking pin strikes the surface of a material at specific points. This is gentle on the material (no notch effect) and ideal for hand-held devices. In scribe marking, the needle is pulled through the material at high pressure. This requires massive holding forces, which is why scribe markers are almost always stationary. Dot peen marking is the standard for mobile applications.
How loud is the device?
As this is a vibrating metalworking process, it produces a typical operating noise. In typical industrial environments (for example, steel construction), this is usually not a problem and is drowned out by the ambient noise.
Advice for your mobile dot peen marking machine
Do you need to mark components that cannot be moved? Are you looking for a handheld device that can withstand even the toughest conditions? Rely on the proven technology of Telesis by Hitachi.