Ultrasonic Cleaning Coins - Case Study
Customers Criteria: Free from all contamination
Component: Coins
Material: Copper plated steel, Cupronickel (copper-nickel)
Contamination prior to cleaning: Oxidation
Total number off: 4
Number off per run: 1
| Ultrasonic Cleaner | Cleaning Agent | Temperature(s) | Concentration |
|---|---|---|---|
| Kemet 12 Ultrasonic Cleaner | Rodastel 30 | 45°C | 5% |
| Kemet 12 | De-ionised water | 40°C | 100% |
| Versa 120 Dryer | N/A | 65°C | N/A |
Process for cleaning coins:
The coin was placed in the tank and run for a cycle of 5 minutes, after a quick inspection you can see the coin has brightened up and the majority of the oxidation has been removed. The coin was cleaned for a further 5 minutes, Then placed in the rinse tank for 3 minutes to ensure a thorough clean removing any debris and left on cleaning agent that could stain or etch the coin. Finally the coin was dried using a hot air dryer set at 65°C for 5 minutes. Note: Both coins were processed separately with the exact same process above.
% Satisfactorily Cleaned: 100%
Before cleaning Coins
After cleaning Coins
