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Need Suggestions for SilverTron AlternativesPosted By Jeffrey (Burlington, VT) on 11/02/2020
Can someone please help me. The SliverTron is no longer being made. Can someone please help me find another one?
Replied by Lezlie (Naperville, IL) on 11/13/2020
EC: Sure, go ahead!
Replied by Art (California) on 11/13/2020
I would be interested in hearing about the machine you are considering buying. I looked at virtually every machine I could find before buying the Silvertron Elite and based on that search, I felt that the SilverTron was a next level device compared to almost all of the machines I looked at with one exception, but that generator was about $1,000 years ago and is likely more now. The price was too high to me at about 3x the price of the Silvertron with less features.
The many features of the SilverTron were what sold me on it over other units that could only make one batch size or only one parts per million size such as 10 or 20 ppm. The SilverTron Elite can make batch sizes as low as a cup or 250 ml or as high as a gallon or 4 liters and even larger with slight adaptations. It can also make 10 ppm batches up to 320 ppm or even higher if needed. The batches are always uniform and crystal clear and of the right color. The unit has a mini processor in it, which I have never seen in any other unit under a $1,000 and it is not much bigger than a large cigarette pack. It has a soft touch display which lays everything out for you and shows a display of where the batch is at any point during the production process and a switchable audio signal that lets you know when your batch is done! You can pause the process at any point during production and resume at the correct point at a later time. It has current regulation and adjustable milliamp settings to maximize production time.
If you find anything close to these features in a unit under $500, that would be impressive. Bill built a unit that is essentially unmatched. I wish I had a picture of what is inside as it blew me away when I saw it compared to other units. There are two stacked circuit boards plus the soft touch display and the layout is as clean as I have ever seen. Here is a youtube video of it's features that you can use to compare the unit you are considering.
Art
Replied by Walt B (Miami, FL) on 02/28/2024
Replied by Art (California) on 02/29/2024
Hi Walt,I use a heated magnetic stirring device when making colloidal silver and my water temp is heated and this means that steam vapor is generated during the entire run of the batch. I use heat to help increase the rate of ion reduction to silver nanoparticles of small size in the 12 - 20 nm range.
A device such as the one you linked to that sits over the water seems very handy, but if you run your batch with heated water as I do, the steam will take a toll on whatever electronics and connections that are inside the box and shorten the useable life of the generator. Even if the device is fairly well sealed, the temperature differentials that the device will be exposed to can potentially cause internal condensation which will have a similar negative effect.
I have a SilverTron and it sits off to the side of the beaker and heated stirring plate and is not exposed to any of the steam emanating from the beaker. It has lasted many years through hundreds of batches. Unfortunately the SilverTron is no longer available.
The generator you linked to does appear to have current regulation which is needed in order to make consistent batches so that is a big plus.
If you plan to use heated water, it appears this unit can be fairly easily adapted so it does not sit on the beaker which can potentially significantly extend the useable life of the unit.
The following scientific article explains why raising the temperature is useful in achieving faster reduction of the silver ions and smaller particle size of AgNPs:
Here is a relevant article quote :
' With regard to the effect of reaction temperature, most of reports revealed that the size of nanoparticles become smaller with the increased temperature. For example, Khalil et al. (2014) synthesized silver nanoparticles using olive leaf extract and they reported that increasing of the reaction temperature led to a rapid reduction rate of the Ag+ ions and the subsequent homogeneous nucleation of silver nuclei-allowing for the formation of AgNPs with small size. '
Art
