Technical specifications

Dry polishing

As with wet finishing, the workpieces move in a high-energy eddy current. Very fine polishing granulates made from walnut shell provides gentle removal in the micro range.

After as little as approx. 2 – 3 hours pre-polishing and 0.5 h finial polishing the ECO-Maxi achieves:

  • Very smooth surfaces
  • Brilliant shine, comparable to manual polishing,
  • without damaging set diamonds, zirconia or pearls.

Recommended process quantities*:

  • Granulate:
    2.2 kg walnut shell granulate
  • Number of workpieces: ca. 200 g

*Depending on the design, individual weight and total weight of the workpieces, the actual workpiece capacity may differ from the recommended quantity.


OTEC Präzisionsfinish GmbH Hotline: +49 7082/491120 Fax 491129 E-Mail: info@otec.de