What's the difference?

No help at all

Barry Irby

>I can't answer your question because I have not got a cyclone, but I wanted to point out that emptying the bag is not exactly a piece of cake. I made the mistake of putting mine in a place that is tucked into a corner and in a hole. There is more fine dust around than I expected and it gets messy when you remove the bag. You have to lean around the machine to remove and attach the bag and its like hugging a big dusty bear. I am thinking of going to considerable effort to change it around to make it easier. I have to empty the bag much more frequently that I imagined and its a lot nastier and more cumbersome than I thought. I wanted a dust remover and what I got was a dust collector. I was surprised at the amount of work it takes to monitor the bag, change the bag, etc. I'm beginning to think a system that just blows it out doors would be a great improvement. I'm really glad my system is outside in a shed, I would not want all that mess back in my shop when I change the bag. The point is, Pick your spot carefully and design it to be easy to get to.

I too want to hear the difference between a cyclone and the system I have.

Re: What's the difference?

Craig Daymon

>Understand that my current dust collection system is a broom, but as I understand it when the bags inflate they puff out a good cloud of dust. They are also more difficult to empty than the barrel uder a cyclone (or at the end of a filter usually attached to the cyclone). The bag systems will also become less efficient as they fill, whereas the cyclone should remain as efficient until the barrel is full. The cyclone will also safely capture any larger chunks before they have a chance of damaging the filter.

As I understand it.

-Craig

P.S. I'm planning on getting the new Oneida Gorilla system...once I get the house to put it in.

Re: What's the difference?

John Trant (Baltimore/DC area)

>One major difference is that the chips and chunks hit the fan in a DC systembut not a cyclone. However, I have found that the putting a "trash can cyclone" just before the intake of the DC alleviates this problem.

John

Re: What's the difference?

woodspinner/ Bill Hale

>Peter

I am fortunate enough to live where I direct vent out of my shop on to the ground. Other than the dump problem with the two systems that I can see is the noise. I do use mine as a broom and do all floor cleanup directly through the blower. When a small chunk hits the impeller it sounds like a gun going off. I have been running this way for about 5 years and no impeller imbalance.

If you live in an area where you require AC in your shop I believe I would go with the cyclone and a multi bag system for the return air back into the shop.

Good turning and be safe

Bill in Casa Grande, AZ.

Re: What's the difference?

Mike Sloan

>I have both a cyclone (Oneida 2HP Commercial), and an older two bag (felt bag) dust collector. The cyclone works much better.

While a canister system would be much better than my old two bag system, there is still a fundamental system engineering difference between the two types of system that would typically help the cyclone perform much better.

In the cyclone system, the motor is after the cyclone, hence air is being sucked through the cyclone, and there is a lot of vacuum pressure inside of the cyclone. As a result, any leaks in the dust storage and collection system actually leak air into the cyclone, and the dust in the cyclone and in the storage bin tends to stay there.

On a bag system, the bags are located after the motor, hence all of the dust collection and storage part of the system is pressurized, and the pressure tends to try to force dust out of the system, so unless you get a perfect seal, you leak a lot of fine dust.

Also, the bag system blows air into the collection bin, which tends to stir up more dust than in the cyclone (my theory).

One of the implications of this difference is that the cyclone removes almost all of the dust before the air passes the motor and goes to the filter, while in the bag system all of the dust is on the same side of the motor as the filter, hence (I believe) the filter on a bag system will get clogged up much faster than on a cyclone system.

Overall, I think that the cyclone does a much better job of containing the fine dust.

Mike

Re: What's the difference?

Peter Teubel

>Mike wrote:

"In the cyclone system, the motor is after the cyclone, hence air is being sucked through the cyclone, and there is a lot of vacuum pressure inside of the cyclone. As a result, any leaks in the dust storage and collection system actually leak air into the cyclone, and the dust in the cyclone and in the storage bin tends to stay there. "

========================

Now that makes sense. I have a canister filter 2hp system. While it works OK, I am not careful of what I "collect". I have a habit of just throwing sandpaper discs into the collector and they tend to whip around in the plastic bag and create pin holes. So much for 2 micron filtration...

Thanks for the insight. More food for thought...

Re: What's the difference?

Steve Worcester

>The cyclone is much quieter.