Coins and medals are known for their extremely high surface quality. Whether currency, proof coins or gold medals: High gloss and flawless reproduction of the detailed relief structures are top priority. This requires tools that are up to the task.
The requirements increase even further when minting dies produce proof coins, as temperature-sensitive materials are often used here. For this reason, the coating unit can only operate within a certain temperature range.
Mints strive to perform the entire process in-house, from coin design to final quality assurance. This is mainly for safety reasons, as these companies are often not allowed to use their tools outside their own premises.
A challenge for tools used in minting applications is the adhesion of the coin material to the tool surface. When cleaning the tools, special attention must be paid to corrosion. Minor corrosion on the tool surface can destroy the entire tool.
In order to meet the high requirements in coin minting, we have developed a custom coating unit that offers solutions.
The Monnaie de Paris is probably the best-known mint in France and can look back on an incredible 1000 years of company history. In addition to minting currency coins and medals (for example, Orders of the Legion of Honor), the company’s repertoire has expanded in recent years into many areas of proof coins and collectibles such as Asterix collector coins. The company’s expectations and requirements for its production quality are correspondingly high.
In the French mint Monnaie de Paris, our PVD coating unit from the S-MPuls series is used. It stands out in daily operation through its
The comparison with the conventional hard chrome plating of these tools shows the unmistakable advantages of PVD technology:
Thanks to this unit, Monnaie de Paris is therefore producing in a much more environmentally friendly way, more quietly and with considerably less risk for employees. At the same time, it works particularly efficiently and economically thanks to the long service lives of the tools.
Additional S-MPuls coating units are installed in the following mints: