Dust collection

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Forum topic by flatboarder posted 11-06-2012 02:00 AM 911 views 0 times favorited 2 replies Add to Favorites Watch
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100 posts in 2818 days

11-06-2012 02:00 AM

Can someone help me figure out what would be best for my shop. I need to Buy a new dust collector and my question is I was looking a the W1687 shop fox Dual bag with 2800 cfm I guess that would be with an 8” duct system. Im not rally sure what It would be with a 6” duct system. Because of the bags, Im sure they clog with fine dust pretty fast then reducing your cfm dramatically what to I would like to know , just a educated guess Im not looking for exact numbers here. If I were to get a Cyclone with say 680 cfm would that work better or less, I know its only a quater of the dual bag’s cfm but Im curious to know what I should do here. I have nine Machines and Ive been running them on a 1 1/2 hp single bag shop fox for three years but it really doesnt work that great. Im using a 4” ducting system with leaky blast gates on every machine. Would someone be so kind as to offer me some intelligent information on this subject please. Thanks alot , Christopher

-- Ive cut this board three times and its still too short?

2 replies so far

View Loren's profile


10241 posts in 3610 days

#1 posted 11-06-2012 02:12 AM

1. Fix your blast gates. I made my own overhead gates with
pull cords. With overhead ducting this helps a lot because
I can cut off whole branches of the system closer to the

I had the sucky plastic blast gates before.

2. My Wood Mag cyclone (built by another dude and
I bought it from him) works pretty well when the filter
is clean. If the seal on the hopper gets broken, the
cyclone sucks chips into the filter and clogs. I’m still
figuring this out, but once a clog of planer chips develops
in the cone, I have to stick my arm up in there to
clean it out and then clean the filter. So make sure
you have a good seal on your hopper.

3. Venting to the outside is a swell idea if you can do it
and if you don’t have to pay to heat your shop. In
So. Cal venting outside is an attractive option to me
and I may build a baghouse filter instead of the pleated
inside filter I have now.

4. Bag filters in your workspace may catch chips, but
getting the fine dust out of the air may not work out
so well, so if you’re going with a bag type, use plastic
lowers and a fine micron bag or filter in the upper, or
put the thing outside so the fine dust is ejected from
the shop.

5. Bags get “seasoned” with a fine coating of dust inside
and actually work better over time. This seasoning
can take awhile and while it does cause a drop in suction,
it filters out a lot more fine dust.

View AandCstyle's profile


3023 posts in 2219 days

#2 posted 11-06-2012 01:29 PM

1. Go to Bill Pentz’s web site and read all you ever wanted to know about dust collection and more.
2. 4” tubing will not give you adequate air flow. Start with a 7 or 8” main trunk with 6” branches, then 5” flex tubing to the machine and finally a 4” reducer to attach to the 4” port on the machine.
3. 5HP cyclone is recommended.
4. This may cost more than you are prepared to spend.
5. Good luck with whatever you decide to do.

-- Art

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