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I have a turbomolecular pump from Osaka vacuum that is quite dirty, and I'd like to clean the blades off to improve balance.

I'm not quite sure how to approach this, I've tried carbon cleaner for turbochargers for cars to no success, and my next thought is to walnut blast the blades, but I'm worried about bending them.

What method should I use to clean these unknown deposits off the blades of this pump?

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tuskiomi
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Acetone or other ketones are used to clean auto engine internals of "varnish"( which looks similar to your deposits). This is for research purposes ,not general engine cleaning. The material looks organic so solvent seems preferred to mechanical methods like nut shell blast. Corrosion would not be a factor for the metal if solvent is used.

blacksmith37
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