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Forum topic by Drew - Rock-n H Woodshop posted 982 days ago 747 views 0 times favorited 11 replies Add to Favorites Watch
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Drew - Rock-n H Woodshop

633 posts in 1296 days


982 days ago

Topic tags/keywords: delta dust collector shop

Hey fellow LJ’s,
I have a Delta 650cfm dust collector. I am interested to know, is it possible to route piping around the shop rigged with blast gates to close off any other ports to help with suction? And if this was done, with a low cfm like mine of 650, will it work with this method or will I have to just cart the unit to each tool to collect directly from its port. Also, will using a smaller pipe to restrict the suction size work better than a bigger pipe? Do any of you use a collector this little? And if so, do you have your shop rigged with piping to run to each tool. How does it work for you?

Drew

-- Drew -- "I cut it twice and it's still too short!"- Rock-n H Woodshop - Moore, OK


11 replies so far

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Drew - Rock-n H Woodshop

633 posts in 1296 days


#1 posted 982 days ago

bump…...

-- Drew -- "I cut it twice and it's still too short!"- Rock-n H Woodshop - Moore, OK

View PurpLev's profile

PurpLev

8476 posts in 2254 days


#2 posted 982 days ago

even larger single stage DCs will have a hard time handling duct and should be planned carefully (1000CFM+). personally with anything in the 1HP and less and at 650CFM single stage I wouldnt even attempt to do anything stationaty and would just move my DC from tool to tool. sorry to be so blunt about it, but this is the nature of the smaller DCs.

FWIW I have a 1100CFM DC and experienced poor results with trying to keep it stationary with medium runs. ended up moving it closer to the dust generators (TS/planer/jointer) and have ~5ft runs to get adequate suction

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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dbhost

5378 posts in 1837 days


#3 posted 982 days ago

Drew, that 650 CFM DC was designed to pull from a single, short hose. It lacks the power to draw over long distances. I have an alleged 2HP 1550 CFM (All dust collector manufacturers LIE about their ratings, always overstated) and it is enough for my simple ducting system, but I wouldn’t push it any further. My longest run is 20’.

If you want to stay with that small DC, roll it to the machine to be used, and connect as short of a hose as you can get away with to it…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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Sawkerf

1730 posts in 1674 days


#4 posted 982 days ago

I ran a Jet 650 cfm with 4” ducting and gates at each tool and it did ok – but not great. If I kept the filter bag clean it really hepled.

My system got much better when I went to the 1150 cfm Jet with the pleated fliter, piped as much as possible with 6” duct, and minimized my use of flex duct.

-- Adversity doesn't build character...................it reveals it.

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Grandpa

3056 posts in 1280 days


#5 posted 982 days ago

There is a good article in Fine Woodworking magazine. Check it out.

View Drew - Rock-n H Woodshop's profile

Drew - Rock-n H Woodshop

633 posts in 1296 days


#6 posted 982 days ago

Okay, thanks guys! big help! :)

-- Drew -- "I cut it twice and it's still too short!"- Rock-n H Woodshop - Moore, OK

View Rick  Dennington's profile

Rick Dennington

3274 posts in 1799 days


#7 posted 982 days ago

Drew,

You know what they say…..”The bigger the better”. I have a Delta 1200 cfm in my shop, and wish it was bigger, sometimes. But if I only run one machine at a time, and keep the other blast gates closed, then it does really good. I can even run 2 machines at once if I needed to, but have never found the need to. As was stated above, move the d.c to the machine you’re operating, small duct run…wouldn’t work for me, but might for you…..OR…you might possibly sell it and get a bigger d.c with more cfms….just a thought…..

-- " I started with nothing, and I've still got most of it left".......

View Beginningwoodworker's profile

Beginningwoodworker

13337 posts in 2278 days


#8 posted 980 days ago

4’’ dust work, might be the best way to do it.

-- CJIII Future cabinetmaker

View Bill White's profile

Bill White

3353 posts in 2565 days


#9 posted 980 days ago

Sell yours and get a Harbor Freight unit. Inexpensive and more adaptable for your needs. Even that one will not work that well for a “whole shop” application. For that use, you’ll need a big unit.
Bill

-- bill@magraphics.us

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MrRon

2731 posts in 1848 days


#10 posted 980 days ago

I would stress the ductwork must be LEAK free. Even the slightest leak can degrade any DC system. The blast gates are major culprits. Cheap ones may leak more than you want. I would go with a 6” main run with 4” taps to each machine and hook up your 650CFM DC. If it works ok, that’s it. If not, get a larger DC. The ductwork will still be usable without change.

View Sawkerf's profile

Sawkerf

1730 posts in 1674 days


#11 posted 980 days ago

A big AMEN to MrRon’s comment about leaks. When I ran my 6” metal duct, I taped every joint and the duct seams with aluminum duct tape. A bit spendy, but it lasts longer than duct tape or electrical tape.

-- Adversity doesn't build character...................it reveals it.

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