I have this one too! It works just fine. It's a lot more challenging than my other two because it's so light, so you must balance it perfectly when spinning.This centrifuge works great and only cost $75. and comes with tubes. You do need to counterbalance your tube with another tube opposite the one you are using with plain water.
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That means if you are using float solution in one tube, use float solution in the other. It should be the same density. (if you use water in one and float in the other, you will get vibrations at least). Fill the balance tube to the same level with care. It really makes a difference.
After all these years I still squint and pray when I start the centrifuge. I also start it out slow and am ready to shut it off if it's wobbly or making a weird noise. In the 90s, my coworker crashed a floor-model centrifuge in the lab by failing to balance it, and the damage that thing did was truly impressive.