Retero GmbH > Home > Services > Wire Eroding / Electro-Discharge Machining

Our new rotary axis allows a wide variety of shapes, very fine recesses, filigree profiles, and small radii or surfaces on round parts – all of them contactless and without force effect on the workpieces. We use the rotary axis if deep, fine recesses or small corner radii on round parts are not feasible anymore.

The rotary axis comes with great benefits, especially in wheel dressing: we are able to insert profiles with finest inner radii of e. g. r = 0.05 mm. Thanks to this process, we guarantee both profile accuracies in the µm range and high concentricity. The only condition is that the workpiece has electroconductive properties. Spark-erosive machining comes with the great advantage that workpiece will not be scalded during the work process. Therefore, there are no structural material changes to worry about.

Funkenerosives Schleifen erodieren INOX
Erosives Schleifen für Kleinstteile


  • High profile accuracy
  • High true running accuracy (0.002 mm)
  • Realization of most filigree contours
  • Deep, fine recesses on round parts with small slot widths
  • Finest inner radii for recesses on round parts of r = 0.05 mm
  • Surface finishes of Ra 0.1
  • Different surfaces and/or widths across can be set and eroded at variable angles
    • No break out of bond matrix components during the dressing of profile grinding wheels
    • Shaping of special materials such as ceramics or hard metals
    • Machining/dressing of CBN or diamond grinding wheels (condition: bonding material and carrier are electroconductive)
    • Machining of materials such as hardened and alloyed or stainless steels (INOX), non-ferrous metals

Do you have a particular project?

We specialize in high-precise manufacturing.


Swiss Quality

iso 9001 und ISO 13485

The accredited ISO certificates 9001 and 13485 confirm how we go without saying. With these certificates, we fulfil the strict quality management regulations for the supply of products which have to meet official requirements and for the manufacturing of medical products as well. We adhere to the strict regulations with both the stringent manufacturing processes and the terms of accompanying technical documentation.

You’ve got the issue – RETERO GmbH comes with the solution
We specialize in manufacturing of micro and small parts made of conductive materials, especially of ceramics and hard metals.

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