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Author Topic: New Sawdust Removal Bin  (Read 10817 times)

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Offline Kbeitz

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Re: New Sawdust Removal Bin
« Reply #40 on: February 12, 2018, 08:50:40 AM »
Only $170.00 on E-bay
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Offline SlowJoeCrow

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Re: New Sawdust Removal Bin
« Reply #41 on: February 12, 2018, 09:10:46 AM »
K, I *think* that would be for the Super Dust Deputy, not the XL which has 6" ports.  If it is for the XL, that's a good deal. 

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Re: New Sawdust Removal Bin
« Reply #42 on: February 12, 2018, 10:28:01 PM »
One the Oneida website it says these must be used on intake side with a sealed catch unit.  Can they be used on the exhaust side like Southside's photo with no seal, or are the exhaust mounted units a different configuration? 
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Online Don P

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Re: New Sawdust Removal Bin
« Reply #43 on: February 12, 2018, 10:55:57 PM »
Southsides photo has the fan on the inlet side of the cyclone, the chips pass through the fan. You can mount the fan on the exhaust side of the cyclone (the intake side of the fan), up top where the large exhaust elbow is on Southside's unit, it is easier on the impeller to move clean air so you can use a lighter impeller with quieter blade geometry BUT you can push further than you can pull, in that configuration I doubt a top mounted fan would pull up to the inlet of that cyclone reliably. You need a sealed container if the fan is up top on the exhaust side, otherwise it won't know not to pull air from your dust bin. If the chips pass through the fan you need a good radial impeller that can take hits from knots, hats, cats and the occasional Johnson paste wax can.

Offline Kbeitz

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Re: New Sawdust Removal Bin
« Reply #44 on: February 13, 2018, 07:04:00 AM »
the occasional Johnson paste wax can....

There's got to be more to that story....
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Re: New Sawdust Removal Bin
« Reply #45 on: February 13, 2018, 07:21:33 AM »
  :D They will just fit inside a loose 6" flex tube. I had the can on a molder bed I had just waxed and had pulled the tube off one of the side heads to do something. The tube came down on the can and woosh, it was gone. For whatever reason I ran down the shop hearing the can bouncing above me till it hit the fan. I looked in the truck and found a beat up can, and a fan blade, bummer! Floor sweeps, although very convenient, can really pick up junk and deliver it to the fan, just something to think about.

Some fan stuff I thought about last night, volume is determined mostly by impeller width, pressure by diameter. You can play with speed if the fan is belt and pulley driven where if it is direct drive you cannot. That runs out if the basic sizes are not right though. You can tune a little more by adjusting the cutoff gap between the impeller and the scroll shaped case where the exhaust flow is directed out BUT tightening that gap mostly creates a lot more noise than improvement.

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Re: New Sawdust Removal Bin
« Reply #46 on: February 13, 2018, 10:08:41 AM »
Since my Timberking blower has all the dust and chips pass through it and is already mounted and plumbed, I'd need to mount the cyclone on the exhaust of the blower, right on top of my bin so the chios would fall into it. 

I'm worried about how tight I need to make the bin so the airflow from the cyclone goes up and out instead of down and into the chip bin, similar to when I just pointed the bare hose into the bin and "Whoosh" the chips were all blown out by the airflow.  When I put the Grizz cyclone segment part on the hose, I still needed to put boards over the bin to keep the air going up and chips going down.  I'm hoping the cyclone would do better.  I guess I could install a blast gate on the bottom of the cyclone to adjust the chip hole to force more of the air up the cyclone instead of down, but that might cause clogs. 
I guess I need to just buy one and play with it. 
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Offline Darrel

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Re: New Sawdust Removal Bin
« Reply #47 on: February 13, 2018, 11:03:54 AM »
I've seen a lot of cyclones emptying into bins and airflow out the bottom was never a huge issue, not even with planer shavings. Yes there was a little bit of airborne debris floating around, but not enough to be a big issue.
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Re: New Sawdust Removal Bin
« Reply #48 on: February 13, 2018, 11:12:09 AM »
That gives me encouragement. Do you know a brand or internal configuration?
  I called Oneida and they said due to thier special internal configuration (I don’t know what’s so special) they said theirs would not work unless sealed. Maybe they’ve never tried it?

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Re: New Sawdust Removal Bin
« Reply #49 on: February 13, 2018, 12:02:22 PM »
You could put a rotary air lock from Oneida on the bottom of the cyclone, but that is a good chunk of change.

Offline Darrel

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Re: New Sawdust Removal Bin
« Reply #50 on: February 13, 2018, 12:22:28 PM »
Most cyclones in my experience have had no internal configuration. What you saw from the outside was what you saw the other side of on the inside. The only exception to that was a huge thing with a 2 ½' inlet it had filters and a paddle valve on the bottom, vibrators, and a filter cleaning system. If I recall correctly, it was manufactured by Carter Day. For what you need, simple is better. I've seen good cyclones for sale on Craigslist and eBay. No internal configuration is what you want IMHO.
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Re: New Sawdust Removal Bin
« Reply #51 on: February 13, 2018, 06:34:41 PM »
Exactly, if you are pushing into the cyclone the bottom does not need to be sealed. You're fine.

 The Oneida is pulling through the cyclone in their pics, notice the fan is always sucking out of the top. If you suck through the cyclone rather than blowing into it the bin has to be sealed so it pulls from the main tube rather than up through the bottom of the cyclone.

Offline Gearbox

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Re: New Sawdust Removal Bin
« Reply #52 on: February 14, 2018, 09:35:15 AM »
Welcome to the world of plugged dust piping . I will be busy that day but thanks for asking anyway . HEHEHE .
A bunch of chainsaws a BT6870 processer , TC 5 International track skidder and not near enough time

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Re: New Sawdust Removal Bin
« Reply #53 on: February 14, 2018, 10:25:41 AM »
Oneida tech support called, and they said they had an empty interior cyclone like you guys are talking about, but for a thousand bucks! :o
That's a lot of logs to saw for a tapered hunk of pipe.  I could buy another fine dump truck for that. 

Maybe time to get scrounging and building my own.  Sounds like a fun project.  Or I may order the EBay ones.  I just threw out a big 500 lb cyclone seed spreader with a busted gearbox.  It would have made a perfect funnel. 



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Offline alan gage

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Re: New Sawdust Removal Bin
« Reply #54 on: February 14, 2018, 10:35:53 AM »
Exactly, if you are pushing into the cyclone the bottom does not need to be sealed. You're fine.

 The Oneida is pulling through the cyclone in their pics, notice the fan is always sucking out of the top. If you suck through the cyclone rather than blowing into it the bin has to be sealed so it pulls from the main tube rather than up through the bottom of the cyclone.

I have an 3hp Oneida cyclone in my wood shop and what Don says is correct. There's suction in the cyclone. My barrel is connected to the bottom of the cyclone with flexible ducting. When it's less than 1/4 full the suction lifts it off the ground. System doens't work if the bottom of the cyclone isn't sealed. I've heard the big ones that dump from the cyclone into a bin have some sort of fancy rotating gate that allows the sawdust to dump while still holding a vacuum.

Alan
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Offline Mt406

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Re: New Sawdust Removal Bin
« Reply #55 on: February 14, 2018, 10:46:25 AM »
I am planning a future dust collection system and I have a question?
do any of you have problems with saw dust freezing in colder weather?

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Re: New Sawdust Removal Bin
« Reply #56 on: February 14, 2018, 11:04:54 AM »
Yes! it freezes pretty quick too. A good reason not to saw when it real cold.
If you ain't livin on the edge you are takin up way to much room. Of course at my age if I get too close to that edge any more theres a good chance I may fall off.
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Re: New Sawdust Removal Bin
« Reply #57 on: February 14, 2018, 11:11:25 AM »
I can see the look on my wife face when I tell her can't saw today to cold saw dust mite freeze.
How cold are we talking 20-30 or blow 20 degrees.
yesterday a 5 I was having to pry the boards off the cant.

Scott 

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Re: New Sawdust Removal Bin
« Reply #58 on: February 14, 2018, 12:57:11 PM »
Around minus 10C is about as low as iu like to go.
If you ain't livin on the edge you are takin up way to much room. Of course at my age if I get too close to that edge any more theres a good chance I may fall off.
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Re: New Sawdust Removal Bin
« Reply #59 on: February 14, 2018, 08:48:48 PM »
I don't like to go much below +15F myself  :D.

I've wondered whether a small feed bin wouldn't be close enough to make a tolerable cyclone.


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