Quick question about dust collection

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Forum topic by Paul C. posted 12-12-2010 12:58 AM 799 views 0 times favorited 5 replies Add to Favorites Watch
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Paul C.

154 posts in 2667 days

12-12-2010 12:58 AM

I have a quick question. I have a single stage 800 cfm dust collector, hooked into a cyclone. It removes chips from my jointer, planer and table saw very well through a 4” pvc duct. I collect dust from the other side of my shop through a 4” pipe that runs over my 8’ ceiling. It is reduced down to 2.5 inches for a maximum of 2 foot runs, using reducing tees. It seems pretty good, but am I being delusional?

5 replies so far

View mfike's profile


100 posts in 3087 days

#1 posted 12-12-2010 01:01 AM

I’m not real sure what your asking Paul. If it removes the chips and more importantly removes the fine dust then it’s doing good. So I guess your not delusional?

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Paul C.

154 posts in 2667 days

#2 posted 12-12-2010 01:16 AM

I guess my point is, I don’t know what good dust collection looks like, So I don’t really know how well it really is working. I know I am being cryptic, but I can’t seem to “find my voice” today.

View patron's profile


13524 posts in 2763 days

#3 posted 12-12-2010 01:17 AM

i have a 6” main
i went to 4” for the separate tools
and went down to 2 1/2” for that orange hose they have
to try and get corners and crannies
no luck

seems you can force air
but you can’t suck it the same

the shop vac’s are higher velocity
(why they make so much noise)
and are made for smaller hoses

i guess that’s why they have one 4” hose
with a handle to sweep the floor

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

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Paul C.

154 posts in 2667 days

#4 posted 12-12-2010 01:53 AM

it is 10 feet from my DC to my jointer, and 15 feet to my router table on the other end of the ceiling run. I will try to get pictures of my tiny little shop.
I hope this helps.

All the runs are smooth ABS

View Mark Shymanski's profile

Mark Shymanski

5300 posts in 3134 days

#5 posted 12-13-2010 12:07 AM

Is the dust being collected? Is the DC screaming? If there is no dust left over and your DC isn’t complaining about the change in diameter, I would go with the flow (pardon the pun) and accept that the DC is doing its job. If dust is not being collected (or if its sitting in the elbows or straight runs) or the DC is screaming like it is starving for airflow I would re-engineer your system. I agree with Charlie that 800 cfm sounds a bit low volume for such long runs.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

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