Thread: Cyclone research & importing an Oneida

If you are thinking of adding a cyclone ( and I guess you have read Bill Pentz 's site) is to have one of his units built here. I am presently completing one, to his design. ( I donated something for the plans) However I did price having one made at a local sheetmetal shop. galv. approx $700 and a few hundred more if made from S/S.
worth considering if you don't want to make your own.

Further correspondence...

Hi Daniel,

The first price listed is for the product. The second price listed is for shipping only (postage alone).

Dimensions are listed in inches

Super Dust Deputy- 18 x 18 x 18 – 25lbs

2hp V sys will have 6 boxes:
Box 1- Motor Assembly- 21 x 21 x 21 – 97lbs
Box 2- Cone- 25 x 25 x25 – 49lbs
Box 3- 35gal. drum kit- 23 x 23 x 38 – 33 lbs
Box 4- Fan Housing- 31 x 12 x 30 – 37lbs
Box 5- Filter- 14 x 14 x 42 – 13lbs
Box 6- Stand- 6 x 6 x 51 – 10lbs

As far as I know Carbatec does not plan to carry our line any further beyond the dust deputy.

Originally Posted by INVENTOR

If you are thinking of adding a cyclone ( and I guess you have read Bill Pentz 's site) is to have one of his units built here. I am presently completing one, to his design. ( I donated something for the plans) However I did price having one made at a local sheetmetal shop. galv. approx $700 and a few hundred more if made from S/S.
worth considering if you don't want to make your own.

Although I would love to make the cyclone, I'm not set up for metalwork, and with the limited time I have I don't want to spend all my 'hobby hours' making it.

$700 to me is reasonable. S/S would be nice too. I will approach a local sheet metal person or two... though I'm expecting some strange looks.

Before that, I will use Pentz spread sheets and info to come up with a clear plan, and probably make a mock up out of card to check everything is sweet.

I also thought building a cyclone would be a great year 12 DNT project. Give them the opportunity to research, design and build.

After building a few of the mini's and now the full size unit, the plans are very good.
One idea from the sheetmetal guys was to use a duct locking ring to join the top half of the cyclone to the bottom cone ( with a flange rolled on the sheet metal - like the 'speed lock' ducting) a good idea as you could easily take them apart if required and would make a nice joint.

Originally Posted by BozInOz

Although I would love to make the cyclone, I'm not set up for metalwork, and with the limited time I have I don't want to spend all my 'hobby hours' making it.

Daniel you don't need many tools to make a mini cyclone, and should be able to knock one up in a day.

Hmmm. It's tempting.
I am after one large enough for a 2/3hp dusty.

For that size Oniena recommended to 950 Cyclone Separator 7" Dia. Inlet, 8" Dia. Outlet, 9" Dia. Discharge, 20" Cyclone Diameter, 48" Tall

I have Pentz's spreadsheet somewhere. I assume it's similar.

I found this interesting one today.
Flowering Elbow » Cyclonic Dust Separation – Overview

The super dust deputy is in carbatec melbourne for ~$550 and they have a 10% off sale starting on Monday.

I have the super dust deputy which I imported a year ago via my own carrier to save a bit on freight. It's hooked up to a 2 hp unit and came with it's own 30 gal steel drum. It is excellent and runs rings around the garbage bin lid style that Carbatec also sell. It captures everything, including fine dust and I never have to empty the plastic bag on the dusty because nothing gets in there.

I am looking to mount the blower directly onto the cyclone, but that may be project for next year when I resolve the exhaust filter issue. I am also considering a unit such as the following, but with a pleated filter exhaust. I would be siting the unit outside in it's own enclosure, unless I find an all weather model.

Power Tools & Machinery Sales - Two Stage Central Dust Cyclone

Originally Posted by BozInOz

Hmmm. It's tempting.
I am after one large enough for a 2/3hp dusty.

For that size Oniena recommended to 950 Cyclone Separator 7" Dia. Inlet, 8" Dia. Outlet, 9" Dia. Discharge, 20" Cyclone Diameter, 48" Tall

I have Pentz's spreadsheet somewhere. I assume it's similar.

I found this interesting one today.
Flowering Elbow » Cyclonic Dust Separation – Overview

Thanks for posting the link. I can't believe that people go to all that trouble ( making it out of clear material) when they can see the Clear Vue mini ( that is based on the Bill Pentz design)
After building a few of them (using sheet metal), believe me, they work, just how everyone else explains. They do however decrease the suction on the vacuum slightly. But without them fitted your filters will clog in a much worse senario, so a small drop in suction is nothing! Just make sure you use them on a large workshop type vacuum unit.
I wonder how long it will take before 'someone' starts having them made in china??

Originally Posted by TP1

I am also considering a unit such as the following, but with a pleated filter exhaust. I would be siting the unit outside in it's own enclosure, unless I find an all weather model.

Power Tools & Machinery Sales - Two Stage Central Dust Cyclone

That one looks good until you get to the 100mm inlet which BP says is not good enough, 150mm minimum is what he recommends.

There are cyclones made in Taiwan and China that are sold by Carbatec. The problem is their pricing is way over the top.

As far as any suction loss goes, this is more than compensated by the use of a pleated filter which has over 7 times the surface area than the crude bag filters fitted to most dust extractors. The super dust deputy can be used with 2 or 3 hp dust extractors but I also successfully used it with a 1 hp unit with a pleated cartridge

The best any filter can flow is before you fire up the DE, after that it is all downhill until it is replaced by a new one. Cleaning them only restores a large amount of flow not all of it and yes, bags are most probably worse. There are companies that specialise in washing truck filters, I wonder if that would be better than cleaning by conventional means.

Originally Posted by Mini

That one looks good until you get to the 100mm inlet which BP says is not good enough, 150mm minimum is what he recommends.

The input is not 100mm. It is a much larger diameter with an adapter to take several 100mm inlets.

While Bill Penz has certainly articulated the design of cycLones very well on his well publicised website, he did not invent the idea and manufacturer's the world over have been building these successfully for a long time

Originally Posted by Mini

The best any filter can flow is before you fire up the DE, after that it is all downhill until it is replaced by a new one. Cleaning them only restores a large amount of flow not all of it and yes, bags are most probably worse. There are companies that specialise in washing truck filters, I wonder if that would be better than cleaning by conventional means.

The theory does not apply equally to bag and pleated filters as I have found out by experience. The bag filter is compromised very quickly but it takes a long time and wanton neglect for the same thing to happen to pleated filter. The latter also has built in cleaning aids to ensure you can keep it in optimal working condition.

But the difference is even greater because at all times, the pleated filter presents a lower exhaust resistance to the blower than the bag filter and the suction is consequently better when clean, and way way better when any dust accumulates.