Re: Question on Onieda Cyclone
Grant Smith
Barry,
Units such as these move a LOT more air than the average small DC. Your outdoor cabinet might work to make it easier to empty the bin. Assuming you have an enclosed cooled and heated shop means you will most likely want the filter to at least return inside your shop to prevent any conditioned air from being wasted by being sent outside. I think you already know that, but wanted to be sure.
The larger units such as I think you are describing don't make a whole lot of noise, more of a low roar with no high pitched noise. Given a good quality filter, I would put it inside. Mine is mounted on the wall with the bin beneath it in a corner. The filter occupies the space above the end of my lathe. A clamp rack sits behind the DC on one side so I was able to use the wall space.
My advice is to try to get both the ducting and the unit, as they are comparable in terms of cost. My 2HP unit begins at the DC with 7" piping, then separates to 6" at the first wye. Everything from there to the blast gates is 6". I then ran 6" flex to unisaw, bandsaw, miter saw with hood, 8" jointer, drum sander, and router table and lathe. One more 6" is necked down to 4" with a 15' hose for cleanup and to provide DC to my drill press. None of my machines were modified from their 4" original ports, as that very short circle doesn't slow down the air very much.
FWIW,
Grant In Iowa