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Thien Top Hat dust collector separator, Thein baffle, and 3 station manifold

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Project by mbs posted 509 days ago 6564 views 26 times favorited 13 comments Add to Favorites Watch

I had a portable Jet DC. It had a Wynn filter on top of the Jet spin chamber and I was real happy with the filtration. However, I was very surprised at how much dust came out of the filter when I cleaned it. I beat it for 20 minutes and vacuumed out the inside and I still got more dust when I hit the side of it. I decided to use the Top Hat design to limit the amount of dust going into the filter. For additional help I made a Thein baffle to fit in the bottom of the Jet spin chamber which allowed me to make the bag smaller. The original Jet DC was placed on castors but I was constantly moving it and tripping over hoses so I decided to mount the system to the wall, plumb it with S&D pipe and hopefully get some floor space back. I really didn’t net too much floor space in the end.

The Top Hat is made just like other top hats except I used 1/8” Polycarbonate instead of wood. It was real easy to work with and I can see the dust spin in the chamber. The baffle in the spin chamber is made just like Thein’s baffle.

I needed a way to go three directions at the inlet to the Thein so I made a manifold out of particle board. The system has been tested and it works very well.

Now I need to finish plumbing in the S&D pipe.

-- Sorry the reply is so long. I didn't have time to write a short reply.





13 comments so far

View Milo's profile

Milo

845 posts in 1820 days


#1 posted 508 days ago

Wow… that is an awesome modification to your Jet dust collector. I hope to do something similar in my new shop.

Fantastic job.

Milo

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

View cracknpop's profile

cracknpop

89 posts in 850 days


#2 posted 508 days ago

Thanks for sharing. This is on my build list for my portable dust collector as well. I understand the concept but have a few questions. Did you have a template for the layout of the top hat separator? Or, where did you get the layout dimensions?
Also, can you explain what you did in Image #3?

Thanks.

-- Rick

View mbs's profile

mbs

1383 posts in 1441 days


#3 posted 508 days ago

I used Phil Thien’s design. Here are some well made instructions.

Image #3 is a the same style baffle shown in image #1. I put it in the Jet spin chamber to minimize the dust going through the filter. The other boards running across the baffle are simply to hold the baffle against the spin chamber because the portion of the baffle that is flush with the edge of the spin chamber only covers 120 degrees (240 degrees of baffle are ‘just hanging there”).

-- Sorry the reply is so long. I didn't have time to write a short reply.

View cracknpop's profile

cracknpop

89 posts in 850 days


#4 posted 507 days ago

Thanks for the link and the additional information.

-- Rick

View mbs's profile

mbs

1383 posts in 1441 days


#5 posted 447 days ago

I emptied my dust bin today. It was half full and there is just a trace of powder in the bag. I’d say it’s working.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View JesseTutt's profile

JesseTutt

763 posts in 611 days


#6 posted 447 days ago

The link no longer seems to work. Is there another?

-- Jesse, Saint Louis, Missouri

View mbs's profile

mbs

1383 posts in 1441 days


#7 posted 447 days ago

I guess the guy took his instructions off the site. Try Phil Thein’s website and see if he has some instructions.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View LexWoodWorks's profile

LexWoodWorks

15 posts in 722 days


#8 posted 406 days ago

Nice setup…isn’t the Thein great.

Quick suggestion that I think can make your top hat perform even better. Try moving the intake port on the top of the unit down a bit into the chamber. Phil suggests that it be ~1/2 way in the middle for the best balance between flow and separation. I had mine like yours initially in my DC; subsequently I moved it down and have noticed a bit better performance. Have fun making (& not breathing) the sawdust!

-- the lyf so short the craft so long to lerne

View mbs's profile

mbs

1383 posts in 1441 days


#9 posted 406 days ago

Thanks for the suggestion. I’ll have to see how easy it is to modify.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View mbs's profile

mbs

1383 posts in 1441 days


#10 posted 406 days ago

When I installed the intake port I made it fit very tight and siliconed it in from the top and bottom. Tried pounding it out and it wouldn’t budge. I could insert another smaller OD pipe inside it and it would work. I don’t have any material handy now.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View mbs's profile

mbs

1383 posts in 1441 days


#11 posted 178 days ago

Update- I’ve emptied at least 3 cans of chips/dust. The plastic bag has a handful of fines. I’m still satisfied.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View Tommy Evans's profile

Tommy Evans

90 posts in 675 days


#12 posted 165 days ago

Thanks for the update. Great food for thought.
Did you eventually extend the intake port as discussed?

peace, T

View mbs's profile

mbs

1383 posts in 1441 days


#13 posted 165 days ago

Yes, tommy, I extended the suction but I haven’t seen any appreciable change in performance. I think I will take the baffle out of the spin chamber to see how well it works.

-- Sorry the reply is so long. I didn't have time to write a short reply.

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