dialong®-T is a ta-C DLC coating deposited at a temperature below 100 °C with a standard thickness of 0.5 µm. The dialong®-T coating has a sp3 percentage (typical of the natural diamond) of about 75% and a hardness of about 48 GPa (5000 HV). dialong®-T offers good performances both on tools that process non-ferrous materials and wood and on mechanical components in the food industry, pumps and compressors, packaging and wherever a hard and wear-resistant coating is needed.

With dialong®-T tools with diameters up to 200 mm and lenghts up to approx. 500 mm can be coated.


VDI abbreviation ta-C
Process PVD Arc
Structure Amorphous
sp3 fraction [%] 75
Color Grey
Thickness < 1 µm
Max. operating temperature [°C] 500
Hardness [GPa] 52
Frction coefficient 0.1

All provided data are approximate values, depend on the application, environment and test conditions. Coating hardness HIT [GPa] measured by nano indentation according to ISO 14577. Hardness can be adapted to the application. Friction coefficient (dry) compared to the steel determined by ball-on-disc dry test with a steel sphere according to ASTM G99. During the running-in the indicated values may be exceeded. Maximum service temperature [° C] These are approximate values.

High thermal stability up to 500 ° C: possibility of MQL and dry processing.
dialong®-T is a very versatile coating used both on cutting tools for milling, drilling and boring of non-ferrous materials and non-hard wood and on mechanical components in several industrial sectors.
The main advantages are:
- versatility of use
- high hardness
- wear resistance
- perfect for automatic machine components