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Forum topic by MrRon posted 282 days ago 458 views 0 times favorited 5 replies Add to Favorites Watch
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MrRon

2790 posts in 1870 days


282 days ago

I finally got my HF 1-1/2 horse dust collector up and running. I scrapped most of it and kept only the motor/fan assembly. I have it hooked up to my cabinet saw and blowing to the outdoors by way of a chip separator barrel. Since most of the sawdust is fine, not much settles in the barrel. There seems to be too much suction resulting in a lot of sawdust being blown outdoors. Upon start-up, I can hear larger particles going through the fan. The barrel I’m using is 55 gallon with inlet/outlet located 180° apart. The barrel inlet blows straight down into the barrel. I’m not sure if I can trap sawdust from a saw. I’m using 4” duct.


5 replies so far

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b2rtch

4310 posts in 1675 days


#1 posted 282 days ago

You need a Thien separator in your trash can and a cyclone lid
Check this link:
https://www.google.com/#q=thien+separator

-- Bert

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crank49

3371 posts in 1597 days


#2 posted 282 days ago

with inlet/outlet located 180° apart. The barrel inlet blows straight down into the barrel.

You should have the inlet coming in along the outer edge of the barrel and blowing tangent to the side.
Either coming horizontal into the side, or through the top then a 90 degree ell to turn it horizontal and tangent. The outlet should be coming straight out the center and the pipe should be inside the barrel about 6” to 8”.

The Thein baffle everyone talks about basically does the same thing except it adds a baffle plate between the top inlet space and the bottom collection space. They work, but I think a properly built drum with regular inlets like I described above will work almost as well and is much easier to build.

Your drum with the inlet blowing down into the barrel will stir up the dust that is trying to settle to the bottom and encourage it to go out the outlet. If you are going to have a collection barrel you might as well make it collect something.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

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b2rtch

4310 posts in 1675 days


#3 posted 282 days ago

The baffle in the Thein baffle prevents the dust from coming back up and through the exit.
You need the baffle.
The thien baffle is easy to build

-- Bert

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MrRon

2790 posts in 1870 days


#4 posted 281 days ago

I’m going to build a Thein baffle, but of a different design because the barrel I’m using is necked down at the top.

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b2rtch

4310 posts in 1675 days


#5 posted 281 days ago

OK

-- Bert

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