gravostar RB-20

The unique feature of this process: the marking needle, which is spring-mounted and pre-tensioned in the axial direction, is equipped with a freely rotating tungsten carbide ball. The marking contour is created by the compaction of the material generated the rolling action of the ball on the surface of the material. Roller embossing is used for fine, visually high-quality marking and for applications where absolute freedom from burrs without any material overflow is required. Even uneven marking surfaces can be provided with a consistent marking depth due to the spring-mounted marking needle with this tool type.

The RB-20 is used for fine, visually high-quality markings as well as in applications where absolutely no burrs and no material (spatter) overflow is accepted.

Applications

For use in machine tools, automatic lathes, etc. – no additional installation required

Suitable materials

Light metals, iron casting, ductile iron casting, steel, Inconel (practically all machinable materials up to approximately 62 HRC)

Benefits

Very high process reliability
Shorter turnaround time
No missed or incorrect markings
A non-cutting process that does not weaken the material
Practically no maintenance required

Facts

Integrated, automatic distance compensation up to approx. 5 mm
Marking depth can be individually preset using the adjustment sleeve (with a scale for precise, repeatable preload adjustment)
Very short marking times are possible thanks to a high marking frequency and a feed rate of over 5‘000 mm/min
The marking needle, made of tungsten carbide (material hardness 92 HRC), offers very high wear resistance
The needle can be easily replaced in just a few simple steps

Accessories

Replacement marking needle

Specifications

Specifications	RB-20
Distance compensation (depending on the available working pressure)	up to approx. 5 mm
Standard tool holder	Weldon schank ⌀20 mm (others upon request)
Length / Diameter	145 mm / ⌀40 mm
Feed rate	over 5’000 mm/min possible
Adjusting the tool	Adjust the marking depth using the individually adjustable setting sleeve with a scale
Adjusting the tool	Adjust the marking depth using the individually adjustable setting sleeve with a scale