Klartext Portal – The Information Site for HEIDENHAIN Controls

Milling and drilling made easy

The TNC 620 has a broad range of applications This enables it to economically produce both simple and complex parts. The control’s new cycles and practical options—like the DXF converter—will help you to work more easily and productively.

  • DXF converter
  • Cycles
  • Field-Proven Functions

Straightforward program creation

With the TNC 620, it’s your choice: shop-floor programming in user-friendly HEIDENHAIN plain language—or external programming. Its Fast Ethernet interface guarantees very short transfer times, even of long programs. For simple work, you do not need to write a program. It is just as easy to operate the machine manually by pressing the axis keys or using the electronic handwheel.


More working planes with the PLANE function

Programs for contours and holes on inclined surfaces are often very complex. Here the TNC 620 helps you to save a great deal of programming time.

The PLANE function defines tilted machining planes. You simply specify a machining plane, regardless of the rotary axes that are actually present on the machine. There are various possibilities for doing so, depending on the information in the workpiece drawing. Specific help graphics make it easy to enter the values for this complex function.


Five-axis machining

With 5-axis machining, you can respond to even more special requests from customers. The engraving cycle of the TNC makes it very easy to engrave logos on turned parts and on curved surfaces. Complicated three-dimensional contours and fine lines with curved contours can now be easily realized.



The next generation of the TNC 620 combines the typical advantages of proven HEIDENHAIN controls with the modern way of operation by tapping, swiping and dragging via touchscreen.

The combination of intuitive operation, context-sensitive user support and the proven HEIDENHAIN operational design ensures reduced workloads and time savings in production.