Reply by Fred Hargis

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Posted on On a Dust Collector what about placing impeller before cyclone?

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Fred Hargis

7240 posts in 3741 days

#1 posted 06-29-2015 05:33 PM

Cyclones do put a huge drag on the system, more so than filters unless they are really clogged. That’s why most of them have larger motors/impellers than a SS that moves the same air. They can also have a more efficient impeller design than a SS (which helps that larger motor/impeller thing) since they only have to worry about moving air, not be hit by debris. But they also have to have that tremendous air flow to do their separation, if they are choked down it just doesn’t work as well. I was in a shop last week where they guy took his Tempest cyclone and hooked it to 4” PVC to the tools. Something like that makes it work worse that it will otherwise. No doubt direct venting would be the cat’s arse….I’d sure do it if I could. But I don’t consider a cyclone a waste, though I do think they have to be considered of the overall scheme of what the owner may want in performance and budget.

-- Our village hasn't lost it's idiot, he was elected to congress.

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