Thien cyclone separator lid with baffle

  • Advertise with us
Project by unrested001 posted 01-03-2013 04:49 AM 39924 views 27 times favorited 12 comments Add to Favorites Watch

I built this based on info from J. Phil Thien’s website. In his gallery are pics and hints on the design. I say this because he gives you just enough info to help you build it without step by step plans. I believe he wanted us to think instead of just handing it over. I’m good with that and thank him for the help. I must of course give credit where it is due, and only take credit for the effort. It works fantastic and I recommend building one if you been considering it. I also built some blast gates and pipped it through the shop with 2” PVC and some flex tubing.

-- I make lots of dust, everything else is just a byproduct of the dust making process!...Frank,NJ

12 comments so far

View a1Jim's profile


118309 posts in 4916 days

#1 posted 01-03-2013 05:13 AM

View Bill_N's profile


238 posts in 3617 days

#2 posted 01-03-2013 11:26 AM

Looks nice
and a good build
This is on my list of to dos

-- I have the Saw Dust Fever

View Uwe's profile


31 posts in 4532 days

#3 posted 01-03-2013 01:19 PM

Good job Frank. I`m also considering building one so thanks for the recommendation.

-- Uwe

View Milo's profile


869 posts in 4658 days

#4 posted 01-03-2013 01:53 PM

I’ve used a Thien for years. You’ll love it, and nice work on the blast gates!

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View whitebeast88's profile


4128 posts in 3529 days

#5 posted 01-03-2013 09:27 PM

looks great!!!

-- Marty.Athens,AL

View blackcherry's profile


3349 posts in 5162 days

#6 posted 01-03-2013 09:30 PM

Nice work on your Thien helper have had one for a few years now and what a great addition to the shop…I would recommend a ring cut out and installed about 1/3 of the way down the trash can to help give support from the suction and relief from the can noise. I just caulk it to the side walls and it work great. I also added a mobile base to the can just for shop clean up. Enjoy your clean shop…BC

View JoeinGa's profile


7741 posts in 3346 days

#7 posted 01-03-2013 10:45 PM

Yep. I’m definitely gonna hafta build me one ‘o these some day.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View JT23325's profile


168 posts in 3486 days

#8 posted 01-03-2013 10:48 PM

Well Done, Just picked up a HF system and got the trash can today to make mine..

-- Jeff, Ability will never catch up with the demand for it. - Malcolm Forbes

View NormG's profile


6575 posts in 4342 days

#9 posted 01-04-2013 02:56 AM

Thanks, have to make one

-- Norman - I never never make a mistake, I just change the design.

View Drifter's profile


35 posts in 3502 days

#10 posted 01-04-2013 02:41 PM


Nicely done – Thanks for the post. I have been thinking about adding the blast gates and piping to my system but since I work out of my garage – things tend to move around. The wife has been talking about wanting to park in the garage (cars can live outside to) but also building a small shop in the back so I am looking forward to possibly setting up a better work space.


I am going to have to try the ring in my separator. I have been planning on re doing mine – with a larger can – and have noticed that with the 5 gallon one the sides do tend to collapse a little under suction. Thanks for the tip.

-- - It's not worth doing if your not willing to do your best.

View unrested001's profile


76 posts in 3645 days

#11 posted 01-05-2013 04:06 AM

Thanks all! BC I’ll have to add that ring. I thought about putting in a ring but had not decided if I wanted it on the inside or out.

-- I make lots of dust, everything else is just a byproduct of the dust making process!...Frank,NJ

View Jim Jakosh's profile

Jim Jakosh

27258 posts in 4444 days

#12 posted 01-07-2013 03:09 AM

Good job, Frank!!

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics