Surface Finishing Solutions for Coin Blanks Industry  

Using ActOn’s vibratory finishing machines, the CHEF and CDF range, and our finishing consumables designed for the industry, our engineers have developed cost-effective finishing applications for parts made out of: gold, silver, copper, stainless steel, brass and aluminium. Some of the process applications include:

·       Cleaning of coin blanks ready for striking

·       Surface finishing before and after plating

·       Deburring, cleaning & burnishing before &after the annealing process

·       Descaling post annealing

·       Burnishing of silver and gold bars

·       Drying to prevent tarnishing of the surface or oxidation

A three stage process using ActOn’s high energy machine resulted in a bright mirror finish with no visible machining lines. The first two stages required a cut down and smoothening process using ceramic and plastic media. This was then followed by a dry polishing stage.