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+-- Thread: Dust Collection: How Often Do You Empty Your Dust Bin (/showthread.php?tid=7356687)
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Dust Collection: How Often Do You Empty Your Dust Bin - Philip1231 - 07-17-2020
Ever since I went to a segmented head jointer/planer, I seem to be going through 55 gallon dust collection bags like crazy. Just wondering, how often do you have to empty your dust collector?
RE: Dust Collection: How Often Do You Empty Your Dust Bin - lift mechanic - 07-17-2020
It really depends what I am doing. On a large project I can fill 2 - 55 gal drums in a day. With small projects a drum can last several weeks. I have a Winn filter on my DC, I will turn the internal paddles to knock the dust out of the pleats at least once a day. When using the 24" drum sander I will spin the paddles several times a day it seems the fine dust plugs the pleats much faster that the tablesaw or jointer and planer.
RE: Dust Collection: How Often Do You Empty Your Dust Bin - 6270_Productions - 07-17-2020
It is very difficult to calculate frequency of Dust Collector Fill Reduction (DCFR) based on a calendar, frequency, or project involvement.
I prefer to document my DCFR based on percentage of fill.
Therefore I can say honestly that I dump mine at 10% overfill. I should try for 25% underfill - but it never works that way.
More than a few times I have dumped mine at approximately 75% overfill.
That is just an estimate since there is a fair amount still floating in the air.
I consider myself fortunate if I can get the darn thing shut down before I look like some kind of baked-brown-suger-coated cookie dessert.
Shortly (immediately?) after the shut down I evacuate The Shop and wait for the dust to settle (literally) . . . somewhere around 2 hours or so.
RE: Dust Collection: How Often Do You Empty Your Dust Bin - Phil Thien - 07-17-2020
Never soon enough.
RE: Dust Collection: How Often Do You Empty Your Dust Bin - R Clark - 07-17-2020
I did a project last summer where I was planing quite a few lengths of 1X6 pine.
I knew I was getting close, but I thought I could make it and finish before dumping the DC. It caught up with me, though, and I ended up spending a couple hours getting the shavings out of the ducting farthest away from the collector.
RE: Dust Collection: How Often Do You Empty Your Dust Bin - Stwood_ - 07-17-2020
Mine all exits outside into a pile
RE: Dust Collection: How Often Do You Empty Your Dust Bin - shoottmx - 07-18-2020
(07-17-2020, 09:31 PM)Stwood_ Wrote: Mine all exits outside into a pile
So does mine, right after I realize the da** thing is (over)full. YMMV
g
RE: Dust Collection: How Often Do You Empty Your Dust Bin - barryvabeach - 07-18-2020
I use a J. Thein Separator - I know it is time to empty that when I see shavings start to collect in the plastic bag. I also tried using a long dowel inserted through the top of the separator to gauge how full the separator is, but the results are inconsistent, also put a plexiglass window in the separator can, but not enough light gets in there to see clearly.
To the original question, others have reported that changing to a segmented head greatly increased the volume of the chips. I changed to segmented head a while ago, but have never tried to monitor whether it fills up quicker , since it would be some fairly detailed math . Sometimes I am face jointing then planing a 12 inch wide board, other times it is 3 inches wide, or just edge jointing 3/4 stock, so time that it is working is not a good indicator.
RE: Dust Collection: How Often Do You Empty Your Dust Bin - fredhargis - 07-18-2020
It seems to me that the segmented heads fill the can faster, though I'm not quite sure why. After all, it's the same amount of wood...just in smaller chips. I would have though the smaller chips would occupy less space.
RE: Dust Collection: How Often Do You Empty Your Dust Bin - Philip1231 - 07-18-2020
Segmented heads seem to produce fluffy shavings that end up being quite a bit less dense then ordinary sawdust. I noticed when extracting the plastic bag from the 55 gallon barrel that the bag weighed maybe half what it used to weigh when I had the straight blade planer. It is of course way easier now to empty the barrel. FWIW, when I purchased my dust collection system, I went for the gizmo that tells you when the barrel is full. Once I got it dialed in (have to set the sensitivity on the sensor) I have not had sawdust backing up into the cyclone and filling the HEPA filter like it did a few times prior
IMHO one of these sensors (I have the Oneida unit), properly setup, is not a bad investment.