Thein Dust separator for Dust Collector

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Forum topic by Randy Woodworker posted 04-04-2012 02:47 PM 1511 views 0 times favorited 5 replies Add to Favorites Watch
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Randy Woodworker

68 posts in 2355 days

04-04-2012 02:47 PM

Any users out there? Did you make one that fits into the bucket or as a top hat on top of the bucket? How well did it work as compared to just using the inlet/outlet piping? How much do you think it cuts down on suction?


5 replies so far

View Grandpa's profile


3259 posts in 2702 days

#1 posted 04-04-2012 03:23 PM

Lance built one of the better looking Thein style separators and it is well documented on LJ. Look him up and read about his separator step by step.

View jmos's profile


839 posts in 2396 days

#2 posted 04-04-2012 03:31 PM

If you have a dust collector, as opposed to a shop vac, I would be very careful about using a bucket (assuming you mean something like a 5 gal bucket.) The air flow will be so high in a bucket nothing will fall out. I’ve got a 30gal metal trash can in front of my PM DC and if the chip level gets much higher than 6”-8” is starts carrying over.

You need more area to slow down the air enough to get chips and dust to drop out.

-- John

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8207 posts in 2603 days

#3 posted 04-04-2012 03:32 PM

View Grandpa's profile


3259 posts in 2702 days

#4 posted 04-04-2012 03:36 PM

Ryan I think the separator is a good device. It probably makes a good collector into a better collector. If they were the best system then all the manufacturer’s would use them instead of the cyclone type separator. I think a cyclone will make a good system into a much better system. I am certainly no knocking the Thein type separator because I believe they will help. I am just saying the cyclone type is a better system and I think you can get them pretty reasonably from E-Bay or some place like that. Like I said if the Thein type was the best then all the top shelf collector manufacturers would be using them.

View dbhost's profile


5726 posts in 3258 days

#5 posted 04-04-2012 03:40 PM

I have one for my shop vac, and one for my dust collector. I wouldn’t use one without it. You might take a slight hit initially on suction, but you maintain flow FAR longer than you do without a separator. I didn’t go all fancy with a top hat, I built a side inlet type separator where the inlet was cut into the side of the drum…

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