Ultrasonic coin cleaning

[gold_geologist2011]

Has anyone tried these and how do they work? I've been looking at them pretty seriously but im not sure what frequency would work best on the coins. Im just wanting to clean clad for now however, it seems like this method of cleaning wouldnt be very harsh on the coins as long as they were kept off of the bottom and sides. Would it be okay to clean older coins this way as long as they were kept off of the bottom and sides?

 

[Larry (IL)]

In my experience, the cheaper ones don't do much but I have heard of good results with commercial jewelry cleaners like the jewelers have.

 

[MNCoinhunter]

If you are just cleaning clad, all you need is a rotary rock tumbler .. It sounds like it would be cheaper.

 

[hershey1]

I have a jewelery ultra-sonic cleaner my brother gave me and he was in the jewelery business for over 30 years and it is a top of the line machine. That being said does not do a very good job on coins. I myself use a double barrel tumbler with aquarium gravel and dishwashing soap and it works very well. JM2. HH

 

[gold_geologist2011]

I used to make mirrors for telescopes and such. Im kind of curious if one could use polishing grits such as really small stuff as in 3 micron or 5 micron grits to help get the dirt out of the coins and not affect them too much as far as condition is concerned. I would like to use this in a tumbler.

 

[David]

I have a jewelery ultra-sonic cleaner my brother gave me and he was in the jewelery business for over 30 years and it is a top of the line machine. That being said does not do a very good job on coins. I myself use a double barrel tumbler with aquarium gravel and dishwashing soap and it works very well. JM2. HH

Or put your dirty and corroded coins in a polyester or nylon mesh bag(s) so the coins will not fall through the mesh size but soap and water will go through it easily. Then put it in the washing machine with your clothes. In the first soap cycle wash for a while then let it sit for an hour or so then let the rinse cycle come on to finish. My coins came out clean and shiney in the washing machine.

 

[gold_geologist2011]

I have a jewelery ultra-sonic cleaner my brother gave me and he was in the jewelery business for over 30 years and it is a top of the line machine. That being said does not do a very good job on coins. I myself use a double barrel tumbler with aquarium gravel and dishwashing soap and it works very well. JM2. HH

Or put your dirty and corroded coins in a polyester or nylon mesh bag(s) so the coins will not fall through the mesh size but soap and water will go through it easily. Then put it in the washing machine with your clothes. In the first soap cycle wash for a while then let it sit for an hour or so then let the rinse cycle come on to finish. My coins came out clean and shiney in the washing machine.

That's a pretty cool idea actually... Dont know why I never thought of it.... Im gonna have to try that one! Thanks for the advice!