SUPER DEAL Electric Lab Laboratory Centrifuge Machine Low Speed 4000 RPM Capacity 20 ml x 6 Desktop Lab Medical Practice with Timer and Speed Control - 110v

Cool item. Use this for lab training. Works as intended and spins well.

This device is very similar to the centrifuges that we used in my high school chemistry lab. It's state of the art 1970's technology. It was old when I used it in the 1990's, but it worked.I did a series of about 40 runs on this machine to help clarify a particularly gooey herbal remedy that I make (contains several types of tree sap). I used either 1000 or 2000 rpm, with about a five minute timer. That was sufficient to get the liquid clear enough to filter. (I got over a liter through a 2 inch filter disc on a vacuum filter, and probably could have done more, but it would start to slow down at about that point.)I encountered no problems at all, however, if you have no experience with this type of thing, it could be very easy to damage.It's a fairly sensitive device as far as balance is concerned. I found that I needed to balance the weight of the tubes down to about +/- 0.1 grams. If your opposing pairs of tubes are off by more than that, it starts making a lot of noise, and if it's really loud, you have to turn it off pretty quickly to keep from destroying it. If you manage to balance the tubes exactly, at 2000 rpm, it makes only a very pleasant whirring noise. It's kind of tough to balance by eyeballing the liquid level in the tubes, but I was able to do it by using a pipette to transfer a few drops back and forth until it looked good.The included tubes say that they are good for 20 ml, but if you are going higher speed (e.g. 2000 rpm), I would suggest going only to about 19 ml. Otherwise, liquid starts coming out the sides of the tube and getting on the rotor. Getting different tubes with caps would solve that problem.

So very quiet you don’t really know it’s running. Really easy to use. I’m very pleased with this for the price I paid for it.

I bought this years ago and it still works amazing,The only thing negative I would have to say about it is you have to position it exactly otherwise you can’t turn it up very high, and then it moves about

Está centrífuga es máximo en mi laboratorio, la recomiendo 100%

I like this machine the blood aré create plasma

All samples are a toasty 72 degrees C (that's more than 160 F) after just 40 minutes! Who knows, if I hadn't intervened then they might have boiled! Egad! Popped their little caps, spinning very fast, what a mess! Not very useful if your samples were alive when you put them in there. Great if in you need sterilization! I saw one reviewer call this an "old school centrifuge". I am guessing theirs didn't get this hot, or they did things very strangely back then.I can think of no reason a properly operating device should get this warm. I couldn't move it from bench until it cooled. I understand that all six tubes need to be balanced, they were, but this thing did seem loud. It vibrated some, but I didn't consider it out of line for a low end unit. Don't get me wrong, I know this is a "cheapy", but I did see an inquiry about how hot they get. Seems like that person has run into this before perhaps?In answer, fairly hot imho! And I would guess with that possibility in mind "Caveat emptor"

An indispensable tool for my work , it works very well , it was a great investment.