gravostar RM-20

An active needle drive is not required for the scratch marking process because of the spring mounted, pre-tensioned marking needle. The workpiece is marked by a combination of material compression and displacement. As soon as the point of the needle is brought into contact with the workpiece, the needle penetrates the surface of the material with a defined pre-tension pressure. Even uneven marking surfaces can be generated with a consistent marking depth. This is due to the consistent pre-tension pressure of the spring-mounted marking needle. The needle pressure can easily be adjusted to reach the desired result.

This compact, short tool is suitable for making fine markings on surfaces that are either smooth or uneven.

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
Two different marking depths can be preset (marking needle preload of 30 or 80 N)
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 needles with standard angle of 90°

Specifications

Specifications	RM-20
Distance compensation (depending on the available working pressure)	up to approx. 5 mm
Default preload pressure	30 or 80 N
Standard tool holder	Weldon shank ø20 mm
Length / Diameter	102 mm / ⌀20 mm
Feed rate	over 5’000 mm/min possible
Adjusting the tool	2 different adjustable marking depths