Annealed marking on uneven parts

Steel marking, etching and engraving

Discover our rotary and laser steel engraving machine!

Steel is the most widely used material, as a raw material or as a component of industrial parts, particularly in the automotive industry. New types of steel with improved mechanical properties are now available such as anodized steel, carbon steel, stainless steel and can be easily marked, identified, traced by our Gravotech solutions.

Gravotech has extensive experience in the steel engraving industry and brings its expertise to help you find the best marking solution for your needs.

Different marking methods are available:

Steel laser engraving is done without any contact with the part and does not require any pre-treatment/post-treatment.
The result is a permanent, resistant, high-contrast marking with high definition finish and without damaging the steel. From the rawest to the most polished steel, steel laser engravers are flexible and offer a lot of marking possibilities, engraving, etching and annealing marking. It is the ideal technology for high-speed for marking & surface engraving on steel.

The Direct part marking by dot peen is performed thanks to a tungsten carbide stylus which comes into contact with the surface and deforms the material, thanks to a succession of impacts that form the final marking.
The result is a legible, resistant, permanent, non-contrasting marking that can be before and after treatment (painting, galvanizing, etc.). Ideal for industrial applications, it is a fast and reliable marking solution ideal for identification & traceability of any steel parts.

The scribing technology uses a carbide tip or diamond tip to apply permanent marking directly on the hardest steels (up to 62HRC) with a high lifetime. Unlike dot peen, the tip doesn’t vibrate but slides along the surface, the result is more clear and attractive.This process has the advantage of being very quiet on steel parts with high resonance like tubes, sheets and so on. Rotary engraving is performed with a cutting tool by rotating and removing material slice by slice thanks to a high-speed spindle.
The result is a deep engraved text, numbers, or logos and long lasting. It can also be used for drilling or light milling.

Discover Gravotech steel engraving machines

Gravotech’s dot peen marking machine and scribing solutions offer non-contrasted, visible, and deep marking that is obtained by making close impacts on the surface of several types of steel. Rotary is a good solution for a neat deep engraving and can do light milling or drilling.

The quiet metal scribing marking machine.

Front view of the XF510r machine

XF510r

INTEGRABLE SCRIBING
  • Technology: scribing
  • Marking area: from 40 x 50 mm to 160 x 50 mm
  • Materials: Metals, plastics
  • Application: Identification

The most precise and consistent electromagnetic dot peen marking machine.

XF510m dot peen marking machine

XF510m

INTEGRABLE DOT PEEN
  • Technology: electromagnetic
  • Marking area: from 50 x 20 mm to 200 x 80 mm
  • Materials: Metals, plastics
  • Application: Identification

The fastest pneumatic dot peen marking machine.

XF510P dot peen marking machine

XF510p

INTEGRABLE DOT PEEN
  • Technology: pneumatic
  • Marking area: from 50 x 20 mm to 200 x 80 mm
  • Materials: Metals, plastics
  • Application: Identification

Medium CNC engraving machine for flat and cylinder engraving on metal and plastic.

IS400 rotary metal engraving machine

IS400 – IS400 Volume

CNC ENGRAVING TABLE
  • Marking area: 305 x 210 mm
  • Materials: Plastics, metals and organic materials (glass, wood)
  • Applications: Personalization, identification, signage, creative

Large and extra large format CNC engraving machines.

ISx000 large format CNC engraving machine.

ISx000

CNC ENGRAVING TABLE
  • Marking area: Up to 610 x 1220 mm
  • Materials: Plastics, metals and organic materials (glass, wood)
  • Applications: Signage, creative, manufacturing

Small and custom engraving machine for all purposes, from perfume bottle to small industrial signage.

M20 Custom engraving machine

M20

ROTARY ENGRAVING MACHINE
  • Marking area: 100 x 100 mm
  • Diameter: From 12.5 to 27 mm
  • Materials: Plastics, metals and organic materials (glass, wood)
  • Applications: Personalization, creative

Standalone dot peen marking station.

Impact marking station: dot-peen marking machine

IMPACT

DOT PEEN STATION
  • Technology: electromagnetic & pneumatic
  • Marking area: 120 x 40 mm
  • Materials: Metals, plastics
  • Application: Identification

Small CNC engraving machine for label and small part traceability system.

IS200 rotary engraving machine

IS200

CNC ENGRAVING TABLE
  • Marking area: 225 x 80 mm
  • Materials: Plastics, metals and organic materials (glass, wood)
  • Applications: Personalization, signage

Deep and permanent dot peen marking system.

XF530m dot peen marking machine

XF530 p/m

INTEGRABLE DOT PEEN - DEEP
  • Technology: electromagnetic & pneumatic
  • Marking area: 200 x 50 mm
  • Materials: Metals, plastics
  • Application: Identification

    Lasertrace ™ facilitates the traceability and identification of all types of parts.

    How to engrave steel?

    Steel laser engraving - multilevel

    Laser etching
    Laser engraving occurs when the heat of the beam melts only the surface of the material and does not fully penetrate the material.
    Thanks to this process, laser marking a few millimeters deep is made. The high power of a steel laser engraver generates high heat to melt the surface of the material. Oxides sometimes form in engraved areas, making the marks clearer and more visible.
    Characteristics of laser etching process
    For the marking process to be easily integrated into a production process, laser engraving must meet the requirements of speed. Thanks to the laser, the roughness of the material is directly modified, and the surface becomes contrasted, and the marking generates bumps.

    Engraving
    When marked components still require reworking or additional painting and the material is rough, laser engravings need to be applied deeper into the steel. Steel laser engraver creates high heat during the engraving process, which causes the material to vaporize. This creates a cavity in the surface that is perceptible to the eye and to touch. Therefore, it is particularly recommended when the laser marking suffers from post-process stress.
    Characteristics of laser engraving process
    Engraving before treatment requires high power and several passes to obtain a marking to sufficiently give a depth marking in the material.

    Laser Ablation / Polishing Marking
    Partial removal of a thin layer from the surface of the material, which allows for contrasting marking on a dark surface. Surface treatment and cleaning: Removal of paint, coating, dust, and rust to clean surfaces. With the right settings and the right choice of laser technology, marking can be achieved by ablation. A high-speed movement coupled with moderate power is generally used to accurately remove the top surface of the material. The surface to be removed will absorb the laser energy and then vaporize to reveal the surface of the material.
    Characteristics of the laser ablation process
    Ablative marking has several advantages as it does not penetrate the material. There is little heat applied to the material and also, the surface cleaning process is non-contact, environmentally friendly, accurate, and fast.

     

    See our steel laser engravers!
     

    Steel marking with dot peen engraving machine

    Micro-impact marking and scribing are perfect for the identification of all metal parts. They offer permanent and legible marking regardless of the characteristics of the steel, the surface state, dusty or not, oily at the end of machining, cold or hot, or thin or thick.

    The Dot peen & scribing process has the advantage of not creating any breaking points in the material, whatever the thickness of the marked part. There is no material removal, oxidation, or corrosion.

    Dot peen engraving machines allow very deep markings to be made. It resists the surface treatments that will be applied after marking (painting, galvanization, etc.) and therefore maintains the legibility of the marking.

    Steel engraving with rotary technology

    Steel milling requirements are used on high-frequency spindles with strong torque and a very sturdy holding tool (collet spindle) to avoid vibrations. Moreover, this application needs tools dedicated to the hardness of steel with a specific sharpening (Percut range for drilling, Twincut range for engraving).

    Milling steel creates chips that need to be removed. As steel milling requires lubrication, it is impossible to install a standard chip collector that removes the chips directly. Chips removal can also be carried out by the lubrication system with soluble oil that carries the chips and dust to gather them in a tray. Gravotech offers this accessory.

    Rotary technology can reach practically any depth, you can make several passes to remove a few layers of material.