Grizzly Cyclone Dust Collector(s)

[mike malone]

Just received the new Grizzly catalog and they have listed new cyclones coming out this month. (also seen on their website); Good prices compared to Oneida. Has anyone heard or read anything about these Oneida clones from Grizzly? I'm about to pull the trigger on a cyclone and now I guess I have to wait until the dust settles (no pun intended) on comparison tests between Oneida and these Grizzly newcomers. Happy New Years fellas!

[Jim Becker]

'Didin't know they existed (other than the one they've had for awhile) until your post. That unit did OK in the December 2003 WOOD Magazine review, but was not a top performer. Time will tell, but my guess is the vendor that has been in the cyclone business for a long time will continue to have the better product.

Oh, the filter area on the Grizzly units is pretty light...108 sq in for the 3hp unit is half of the filter area that my Onieda 2hp commercial system has. I would be concerned about that relative to back pressure. Their comparisons on the filter is also troubling...the "can" at the bottom of the Oneida filter only gets a little tiny bit of flour in it...it should NEVER have dust or chips! That tells me something about the knowlege of the vendor doing the comparison...I didn't go any farther than that in looking at the comparisons, however. I do know that the performance figures for Oneida are spot on and accurate. Other vendors don't tend to be that way.

[Mark Duksta]

There's a long thread over on WoodNet. A guy from Grizzly is answering quite a few questions. I was just about to buy a cyclone. I'm going to wait a bit now.

Apparently Grizzly bought an Oneida and made head to head comparisions. They talk about the plastic bag as well as other things about the new cyclone.


Mark

[mike lucas]

There's a long thread over on WoodNet. A guy from Grizzly is answering quite a few questions. I was just about to buy a cyclone. I'm going to wait a bit now.

Apparently Grizzly bought an Oneida and made head to head comparisions. They talk about the plastic bag as well as other things about the new cyclone.


Mark I will hold out on condeming Grizzlies cyclone design until I have more information.
With that said, I would never rely on a company doing their own testing as being gold. Many companies have been known to lie in order to make the product they sale to look good much better then it really is.
When one of these companies come out with the Bill Pentz design, at a fair price, only then can we be completely happy.

The more choices we have, the better products there will be at a lower price.

[Jim Becker]

With that said, I would never rely on a company doing their own testing as being gold.
Excellent point. Independent testing is important.

[Terry Hatfield]

j,

Question...the Oneida site says the 3 hp. commercial has a 130 sq.ft. filter is that correct? If so, 108 to 130 is not that great of a difference. I'm unsure how that would effect performance from a back pressure stand point.

Grizzly said in the other thread that they just bought off the shelf bags for the filter to save money. I don't think the size of the bag has anything to do with the seperation or lack there of but someone will have to verify that when they have one operational.

The numbers listed on the Griz site look like they should be very close compared to my testing on cyclones of similar impeller sizes.

t

edit: Griz site also says they have some mechanical means of cleaning the dust from the filter. Something like the Jet paddles??? No pics yet but it sounds like a good idea.

[Jim Becker]

Question...the Oneida site says the 3 hp. commercial has a 130 sq.ft. filter is that correct? If so, 108 to 130 is not that great of a difference. I'm unsure how that would effect performance from a back pressure stand point.
You are correct, Terry...I was thinking of something else and this head cold isn't helping! I'm still dubious on their specs until there is some independent testing, however...and some of the comparison things they bring up really don't float my boat. No matter. Time will tell!

[Terry Hatfield]

You are correct, Terry...I was thinking of something else and this head cold isn't helping! I'm still dubious on their specs until there is some independent testing, however...and some of the comparison things they bring up really don't float my boat. No matter. Time will tell!

j,

Agree, some of the Grizz comparison items are a bit odd. But honestly proably the same could be said for some on other's site as well.

t

[Bob Aquino]

Pappagrizzly is the head of the company and he posts on woodnet. They have a few company reps over there, but this is the first CEO that posts actively that I am aware of.


There's a long thread over on WoodNet. A guy from Grizzly is answering quite a few questions. I was just about to buy a cyclone. I'm going to wait a bit now.

Apparently Grizzly bought an Oneida and made head to head comparisions. They talk about the plastic bag as well as other things about the new cyclone.


Mark

[JayStPeter]

They look pretty interesting.
I looked at the comparisons to Oneida. I have to admit, I like the catch pan on my Oneida filter. The bag seems like the hokey design. Otherwise, their self serving comparison looks OK. Frankly, similar to the comparos on the Oneida site. One thing I didn't see is a performance curve comparo. To me, the most important feature.
But, at the prices .... I would've been tempted if they had them a year and a half ago.

Another thing that interests me some is the spray booths. Seems like a pretty good price. I remember getting one of those at an old company for something like $6K.

Jay

[Jack Diemer]

I am encouraged by what I see. The cyclone appears to be well built (at least they are telling me it is), The impeller seems to be properly sized to provide good performance. The motor seems to be a little in question, only time will tell whether the motor can take the load. As for that plastic bag on the bottom, Many are concerned that this is a cheap way to do a clean out, but I will tell you that if the cyclone is designed properly, there will never be more than a few tablespoons of fine dust in there. As for performance, until they post the static pressure curve, noone will know how well it performs.

I am concerned that visually the cone on the cyclone appears to be too short which could severly affect the performance.

[Steve Clardy]

Got a friend that has one. Not quite set up yet. He set it outside, under the eave of his shop. Intake goes through the wall to it, the outlet goes back through, inside, with the filter mounted inside so he won't pump out all his heated air. Time will tell.
Set his up so it will just dump the chips on the ground, then he will shovel them up and carry off in a wheel barrel. No bags or cans to empty.

[Terry Hatfield]

Steve,

Not one of these. Griz has no inventory yet on these new ones. The Griz site says they will be available in Febuary.

t

[JayStPeter]

Pappagrizzly is the head of the company and he posts on woodnet. They have a few company reps over there, but this is the first CEO that posts actively that I am aware of.

Rob Lee, main man at Lee Valley/Veritas, sometimes posts here and is a regular at WoodCentral.

But, all this is proof that Grizzly and other companies are listening to what is said on these forums. It seems they have at least made an attempt to provide the DCs we desire at a nice price. I like my Oneida, but the cost was tough to swallow. At this point it is the single most expensive piece of equipment in my shop (and you don't have to count the pipe).

Jay

[Terry Hatfield]

.
Set his up so it will just dump the chips on the ground, then he will shovel them up and carry off in a wheel barrel. No bags or cans to empty.

Hey Steve,

Will that work?? :confused: I've never tried such but my guess is that everything will go out the exhaust without a sealed container uner the cyclone.

t

[Jim Becker]

Will that work?? :confused: I've never tried such but my guess is that everything will go out the exhaust without a sealed container uner the cyclone.
That was my first thought, Terry, but the blower may be in front of the cyclone. The one at my local full-service lumber yard is that way.

[JayStPeter]

Hey Steve,

Will that work?? :confused: I've never tried such but my guess is that everything will go out the exhaust without a sealed container uner the cyclone.

t

I think you're right.
The chip outlet will act as the air inlet, sucking cold air into the shop. I doubt it will suck much dust either. If it does, I'd guess it'll suck it right on up into the filter. I think the only way it would work is in a push through mode. But, you still wouldn't get return air back into the shop. I think the only way a cyclone (either push or pull) really works is with a sealed collection bin.
I played around with mine when it was new. Well, more like "Hey, why isn't this thing sucking any air .... oh I see, whew". Met another guy who was telling me about having a hole in his chip bin. It caused most of the dust to be sucked up into the filter. Took him a few filter loads to debug the situation. Sounded like fun .. not.

Jay

[Terry Hatfield]

That was my first thought, Terry, but the blower may be in front of the cyclone. The one at my local full-service lumber yard is that way.

j,

Ahh...hmmm...wouldn't that mean that everything would go out the open cone??? What would make the air turn and go out the outlet to the filter if the blower was in front of the cyclone adn the cone was open?? :confused:

BTW...now I got a stinkin' head cold too so maybe it's the DayQuil. :confused:

[Terry Hatfield]

I think you're right.
The chip outlet will act as the air inlet, sucking cold air into the shop. I doubt it will suck much dust either. If it does, I'd guess it'll suck it right on up into the filter. I think the only way it would work is in a push through mode. But, you still wouldn't get return air back into the shop. I think the only way a cyclone (either push or pull) really works is with a sealed collection bin.
I played around with mine when it was new. Well, more like "Hey, why isn't this thing sucking any air .... oh I see, whew". Met another guy who was telling me about having a hole in his chip bin. It caused most of the dust to be sucked up into the filter. Took him a few filter loads to debug the situation. Sounded like fun .. not.

Jay


Jay,

I have been there. Amazing how one little leak in the drum or the connection to the drum causes the entire world to end up in the filter!!!!

t

[mike lucas]

Every setup I have seen at lumber mills are setup this way, the big difference is that everything is outside, so there is no warm or cool air (Depending on season!) to worry about getting back in to the shop area.

I don't think this is a good idea for a climate controled shop.:confused:

[Mike Linne]

To clarify:
With cyclone air discharging to fan inlet (pull thru): A bottom outlet open to atmosphere will pull air into the cyclone displacing air that normally would be drawn through the "normal" cyclone inlet. Air leaks in the bin will act similarly, but also re-entrain any particles near the leak and send them back up into the cyclone. Many larger industrial cyclones have a rotary airlock valve between the cyclone bottom outlet and the dust/chip bin. This maintains an air seal and allows the chip bin/barrel to operate non-airtight, or allows direct dumping to the ground or a trailer or dumpster.

With the fan in front of the cyclone (fan discharging to cyclone inlet i.e. push thru) an open ended cyclone bottom will result in most of air and entrained solids going out the bottom of the cyclone. Almost no air flow will go out the "normal" top discharge of the cyclone. Obviously this is about the same as the fan discharging directly to atmosphere as the cyclone and afterfilter are performing no function.

[Steve Clardy]

Steve,

Not one of these. Griz has no inventory yet on these new ones. The Griz site says they will be available in Febuary.

t
Ah. Terry. Don't know about Griz inventory, But I know he has one. Bought over a year ago. Big GREEN with GRIZZLY all over it.
And there was one on display in Springfiels 6 months ago. So they have them.;);):):)

[Steve Clardy]

Hey Steve,

Will that work?? :confused: I've never tried such but my guess is that everything will go out the exhaust without a sealed container uner the cyclone.

t
I don't know. I am just telling about how he is doing his. I am not a cyclone expert, don't have one, probably never will with the system I have.
It isn't up and running yet. Time will tell. Guess I shouldn't have even posted this here, knowing how the CREEK gets out of hand on some of these threads.:confused::confused::confused::eek::(:(:(

[Terry Hatfield]

I don't know. I am just telling about how he is doing his. I am not a cyclone expert, don't have one, probably never will with the system I have.
It isn't up and running yet. Time will tell. Guess I shouldn't have even posted this here, knowing how the CREEK gets out of hand on some of these threads.:confused::confused::confused::eek::(:(:(

Steve,

No problem my friend. I was just interested if that would work or not. Sorry it got out of hand.

As far as the cyclone goes, you buddy has this one.....right????

<IMG SRC="http://www.terryhatfield.com/G0525.jpg">

The one's that we are talking about here are brand new. They look like this.....

<IMG SRC="http://www.terryhatfield.com/G0441.jpg">

The G0525 has been discontinued acorrding to Griz.

t

[Steve Clardy]

Steve,

No problem my friend. I was just interested if that would work or not. Sorry it got out of hand.

As far as the cyclone goes, you buddy has this one.....right????

http://www.terryhatfield.com/G0525.jpg

The one's that we are talking about here are brand new. They look like this.....

http://www.terryhatfield.com/G0441.jpg

The G0525 has been discontinued acorrding to Griz.

t
Not sure on the model # Terry. Only seen it out of the crate, not set up.
I need to back up on the color. It's red, not green. Possible a prototype model when they first came out? His does have the cartridge, not a bag. And there's no plastic bag under the cartridge.
So on the model # don't know what to tell you.:confused::confused:

Guess I should have kicked the cat before I came out of the house this morning.:rolleyes::rolleyes: