5" Dust collection piping

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Forum topic by yuri posted 10-22-2010 05:10 PM 2356 views 0 times favorited 5 replies Add to Favorites Watch
View yuri's profile


136 posts in 3567 days

10-22-2010 05:10 PM

Hi, guys

I am thinking about dust collection piping in my shop. I came to conclusion that best piping size would be 5”. Unfortunately, that size put big limitation on material/supply selection. I can not find proper piping and other fitting in that size at least in affordable price range. What is consensus here on that?

5 replies so far

View cabmaker's profile


1720 posts in 2773 days

#1 posted 10-23-2010 04:01 AM

You are correct in that 5inch is a good size. I have 8 inch at the cyclone which I reduced to seven,six and then five to seven machines. All in spiral pipe with blast gate. Took a couple days to set it up but the payoff is big..There is an out fit near me in fort worth that handles this product and they are no strangers when it comes to shipping. M&M manufacturing on Adolph st. JB

View ND2ELK's profile


13495 posts in 3737 days

#2 posted 10-23-2010 06:19 AM

I used 6” on my main runs and 4” or 2 1/2” at the drops. Check out my blog “Dust Collection In!” if you care to see my layout and how I did it. I am very pleased how well my system works.

-- Mc Bridge Cabinets, Iowa

View yuri's profile


136 posts in 3567 days

#3 posted 10-23-2010 05:30 PM

I could go with 6”, but I do not have that powerful DC, it is Harbor Freight one and I think it will not provide enough oomph for 6” that is why I want 5”.

View jusfine's profile


2422 posts in 2889 days

#4 posted 10-23-2010 06:43 PM

I also started with a 6” main, and have runs of 6”, 5” and 4” to the various tools.

5” spiral and fittings are common here and no more money than 6”, check with a local tin basher or mechanical fabrication shop.

They have access to all sizes and some custom fittings can be as reasonable as purchasing online, I found out when I did mine this summer.

-- Randy "You are judged as much by the questions you ask as the answers you give..."

View flatboarder's profile


100 posts in 2820 days

#5 posted 10-24-2010 08:02 AM

I use thin wall PVC drain pipe just buy the sweeping y”s and 90’s. I the bought a small nipple in the a/c ducting dept. ” Lowes” Thats crimpted on one end you can glue it straight to the PVC or duct tape ” which is what I did and then i use a short piece of rex flex hose to the machine. You can buy reducers just like the nipple If you want to drop to a smaller flex hose like 4” , 2 1/4, or whatever your need s are. Works great and is much cheaper than you can buy from woodworking stores. I even ran the PVC in the concrete under the floor and stubbed up for the machines.

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

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