Thien top hat baffle questions

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Forum topic by atlas posted 01-21-2016 02:27 AM 684 views 0 times favorited 1 reply Add to Favorites Watch
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5 posts in 1139 days

01-21-2016 02:27 AM

Topic tags/keywords: thien dust separator

I am in process of building a top hat thien baffle, and had a few questions about the design:

-I will connect the baffle to my grizzly 2hp canister DC. Am i better to make the line going from the trash can baffle to the DC 6” or 4”?
-How far should the pvc (or similar) connector to the DC extend below the top plate on the baffle? or is it better defined as how far above the baffle should it be?
- i have seen comments that the baffle should be as thin as possible – is this correct (and if yes, why)? is 0.75” too thick?
- what is the ideal height of the top hat assembly?


1 reply so far

View Holbs's profile


1878 posts in 2051 days

#1 posted 01-21-2016 05:16 AM

2hp… eh…. I would go 4” from baffle to DC inlet. Minimum 6” ducting would be up in the 2.5 – 3 HP range (this is only a guess).
- There is a magic number from the baffle to chimney pipe that only you can adjust to find, as the volume of your baffle, your dc, your chimney size, inlet size ETC all come into play and that is too much variable. Mine is roughly 25% above the baffle for it’s sweet spot.
- baffle thin or thick does not have any bearing on efficiency. Only reason to have it more so thicker is to keep it stable with all the air turbulence and suction going on. Mine is 1/2” MDF and 1/8” hardboard.
- ideal height of top hat is mostly an unknown factor. I did make mine 16” just for a try out. I’m happy with it’s separation of particles.
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