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Forum topic by orangehatguy posted 06-24-2015 04:54 PM 797 views 0 times favorited 6 replies Add to Favorites Watch
View orangehatguy's profile


4 posts in 1305 days

06-24-2015 04:54 PM

Hey folks

New to the forum and hope you guys and gals can help me out with a problem i’m having. I’m about to start the install of my dust collection system .

I have a Grizzly G1030Z2P Collector, 3HP 2300 CFM. It has a 7” Inlet and came with the 7”- (3) 4” splitter. I have one of their trash can cyclone lids with 4” inlet and outlet.

I am wanting to connect to my table saw, band saw, jointer, planer, and router table which all have 4” ports. I would also like some smaller 2 1/2” drops to connect to my drill press and miter saw.

I know that for maximum efficiency I need to run the 7” ducting as far as I can, and only drop down to 4” when making the connection to the tool.

The problem that I am trying to figure out deals with the cyclone. I would like the ducting for all of my tools to utilize it but i’m limited by the 4” inlet and outlet.

My DC is outside under a covered area and all duct work will be under the floor.

Thanks for the help!


6 replies so far

View WoodNSawdust's profile


1417 posts in 1414 days

#1 posted 06-24-2015 05:13 PM


I think that I would find or build a 6” or 7” cyclone or Thien separator rather than reduce the pipe to 4”.

Another thing to consider is to replace the top bags with pleated canister filters. Wynn is one brand, others have successfully accomplished the same thing with semi truck air filters.

-- "I love it when a plan comes together" John "Hannibal" Smith

View JeffP's profile


573 posts in 1629 days

#2 posted 06-24-2015 11:12 PM

...what woodnsawdust said…plus you said it will be outside.

Given that, and the planned inclusion of either a 4 or 7” seperator…why not get rid of the filter bag? It only serves to reduce your CFM and cause you headaches cleaning/replacing it. The separator will typically take most of the dust and almost all of the chips…not much left to blow out into the outside air near your shop.

You said it will be outside and covered. That is a perfect recipe for removing the filter.

-- Last week I finally got my $*i# together. Unfortunately, it was in my shop, so I will probably never find it again.

View rwe2156's profile


3230 posts in 1718 days

#3 posted 06-24-2015 11:22 PM

+2 woodnsawdust.

Like JeffP said, if you can you vent to the outside that’s the best way to go.
When I did it with mine I noticed a definite increase performance.

Have you checked into the Dust Deputy? I have one it comes with 5” inlet and 6” outlet.

-- Everything is a prototype thats why its one of a kind!!

View orangehatguy's profile


4 posts in 1305 days

#4 posted 06-24-2015 11:48 PM

I looked into the Thien separators and feel confidant that I can build one. Now where do I source 7” ducting? I’d prefer pvc or dwv because of familiarity and ease of finding fittings, but 7” pvc does not exist to my knowledge.

View Rayne's profile


1124 posts in 1777 days

#5 posted 06-25-2015 12:08 AM

Find a local HVAC supplies distribution location. I was lucky that there was one near me and was able to get 6” and 5” snaplock 26-ga ducts for super cheap. 6’ sections for only $7. The only thing I had difficulty finding were the Wye’s. Everything else were readily available. Worth looking into if PVC it too difficult to find.
Home Depot’s online site may also have 7” 26ga duct work as well.

View orangehatguy's profile


4 posts in 1305 days

#6 posted 06-26-2015 12:03 AM

Looked at Lowes today and found all the sheet metal. Talked to a buddy of mine that does HVAC and he’s going to hook me up. Thanks guys!

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