Reply by crank49

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Posted on Oneida Pro 2000 Question

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4032 posts in 2994 days

#1 posted 05-10-2012 04:10 PM

I assume when the system was originally installed you did not have these problems? Or did you literally not get to use it at all before the move?

If I accept that the system did work correctly at some point in time I would next ask what has changed?

If this line of questions is going down the wrong trail, then what could make this type of system bypass a bunch of fine dust into the second stage HEPA filter? The answer to that is air leakage in the base of the cyclone. This can be into the cyclone itself, into the connection between the cyclone and the dust container, or into the dust container itself.

If the bottom end of the system is absolutely air tight, the only other malfunction I can think of is the inlet tube, attached to the inlet of the fan is not extending down below the tangential dust duct inlet in the side of the cyclone far enough; or has dropped loose from the fan housing.

Note: I do not have, and never have personally seen, an Oneida collector, I am speaking as an engineer who has over 30 years experience designing and building systems like this. Therefore, I can only speak in generalities.

Edit: I just now saw your post about the equipment you run. The Drum Sander is most likely your main culprit if everything at the collector is functioning correctly. May just be too much dust loading to start with. A drop-out-box in the line near the sander might help this case.

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