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.
The RM-12L is a very compact tool for Weldon ⌀12 mm, designed for making fine marks 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. 3 mm
- Marking depth can be individually adjusted using the adjustment screw
- 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-12L |
| Distance compensation (depending on the available working pressure) | up to approx. 3 mm |
| Standard tool holder | Weldon shank ⌀12 mm |
| Length / Diameter | 53 mm / ⌀12 mm |
| Feed rate | over 5’000 mm/min possible |
| Adjusting the tool | Engraving depth can be individually adjusted using the adjustment screw |
Layout gravostar RM-12L
