Doug knows that what I posted (your original photo) is a heat exchanger (which is what I was sure it was). He's used many centrifuges on his company's (as in HIS company's) rigs.
Now he wants to know if there's a paper element inside the centrifuge so he can give you a bearing on its resale value (or current viability in the face of newer products).
Right now, you're looking at around $2000 for a centrifuge. If you're picking it up for salvage, you may be able to make some coin. It would be hard to adapt to anything without an air compressor.