PVD coating of dies is an already well known technique to increase die life of minting tools. It is common to use Cr-based coating materials, due to it positive behaviour on striking coins.

However, one of the biggest challenges was always a sustainable removal of Cr-Coated dies, due to the severe environmental rules in regards of chemical decoatings and potential residuals of Cr 6 / Hexavalent Chrome.

 The developed technology, in combination with the coating developed for circulation dies, gives a high output in coin production.