Dust Collection Advice Please

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Forum topic by TheDane posted 04-24-2015 12:52 AM 1388 views 0 times favorited 10 replies Add to Favorites Watch
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4930 posts in 3081 days

04-24-2015 12:52 AM

Topic tags/keywords: question dust collector cyclone

Here’s my current cyclone rig …

It is a Jet DC650 (650 cfm) dust collector with an Oneida Steel Super Dust Deputy. The cannister filter on the DC650 is a PSI 1 micron.

This system works, but I’d like to:
1) Increase filtration to catch smaller particles
2) Increase suction at the tool, and
3) Pick up a little space with a smaller footprint system.

Here is what I am contemplating:
1) Ditch the DC650
2) Put a PSI 2hp (1350 cfm) blower on top of the Oneida SDD cyclone …
... and
3) Add an Oneida Cartridge Filter Retrofit Kit

I would have to run a 240 service, but that is no big deal (my shop has a 100-amp subpanel with plenty of space), and build a mounting rack for the blower/cyclone.

This approach would cost be in the neighborhood of $800, but might deliver a better system and make use of some of my existing gear.

The alternative is to buy a new cyclone (I like the looks of the JDS 2100-CKV (1700 cfm), which lists at $1499.

So, the question is … am I nuts, or is this a workable solution?

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

10 replies so far

View AZWoody's profile


680 posts in 642 days

#1 posted 04-24-2015 01:52 AM

I did pretty much just that and am now putting together a clearvue cyclone with 6” ducting.

I had a 2hp harbor freight blower which I changed the intake to 6” and mounted it directly above the onieda with no filter on the output to see what my max cfm would be.

To compare, on the other side of the shop, I had a HF 2hp, stock hooked up to a metal trashcan with one of the pre moulded cyclone covers on it.

I did not have any noticeable difference in cfm even though you’d think the oneida should have made a much bigger difference over the trashcan.

I was averaging 400cfm at the closest point with 4” s&d pipe at 15” from the collector. 20 feet further down, I was down to about 75% of cfm.

For fine dust collection, this just wasn’t going to cut it. If you want to collect chips, it works.
I had started getting nosebleeds in the mornings after working in my shop and sometimes, directly after. I haven’t had that in a long time.
Also though, I do run a drum sander and work with a lot of rough lumber so I do much more wood milling than most people who buy s4s lumber.

View TheDane's profile


4930 posts in 3081 days

#2 posted 04-24-2015 03:16 AM

Something I neglected to point out … I am, and will likely remain, a hose-dragger.

I don’t plan to plumb the shop with metal or PVC piping.

My DC is centrally located in a 322 square foot shop, and moving the 4” hose from one machine to another is what I intend to do.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View AZWoody's profile


680 posts in 642 days

#3 posted 04-24-2015 04:40 AM

If you’re using primarily hose, I would still think you would get close to 400 cfm because the air does not travel through it as well as piping. So I would guess maybe 10’ to 13’ would have the same effect as 15’ of pipe due to not only the ribbed nature of the hose but also the bends and curves the hose will make as it goes to the machine.
The closer you can get your dust collector to the machine, the better.

If you keep the oneida, you might want to see if you can find 5” hose, as that’s what the inlet is or adapt it up to a 6” hose.
4” is going to give diminishing returns as there is only so much air that can go through it, even if you upgrade the blower.

View Dutchy's profile


1969 posts in 1586 days

#4 posted 04-24-2015 06:12 AM

Hello Gerry,

Maybe it doesn,t help, but here you can find a lot of information.

-- My englisch is bad but how is your dutch?

View Andre's profile


992 posts in 1224 days

#5 posted 04-24-2015 06:15 AM

I am in the process of piping my 575 sq/ft shop, tired of dragging hoses. My DC unit is rated at 1250 cfm and I swear that it now sucks a lot more after going through about 30 ft. of PVC than it did through 15 ft. of hose. Have not sealed or taped all the joints (some glued) yet as I left quite a few just friction fit stuck together in case of plugage or relocating in the future. Have been trying to finish this shop project going on 3 years and the end is in sight, now what to do with all that crap that I haven’t used in years but just cannot toss?

-- Lifting one end of the plank.

View Fred Hargis's profile (online now)

Fred Hargis

3840 posts in 1911 days

#6 posted 04-24-2015 09:33 AM

The PSI blower has a true 2 HP motor motor and a 12” impeller, it will move a lot more air than the Jet. You will save a lot of money nad get just as good performance buying a PSI filter to go with. I actually replaced my OEM Oneida filter on my SDG with one from PSI. More media, basically same filtration (merv 15 vs. merv 16), much less money, and it was plug and play. Best part is the PSI filter is much more robust in construction, and USA made (Clark Filters in PA). But the reality of the ducting situation may make it of limited improvement. 4” duct just isn’t going to move much air. With a 5 HP-14 1/4” impeller unit I pull a measured ~550 CFM through 4” PVC. With 6” I can get almost 1200 CFM. The 4” number would be less with flex hose, though I haven’t measured it. So think it through carefully, the increase with your current plan may not be what you hope to get.

-- Our village hasn't lost it's idiot, he was elected to congress.

View rwe2156's profile


2111 posts in 899 days

#7 posted 04-24-2015 10:42 AM

I think you’re doing the right thing the blower is a little undersized for the super DD.
Its gonna work a whole lot better

I agree with Fred you’re going to starve the unit with 4” hose.
Its not that hard to run some 6” pvc and put in 2 or 3 drops.

-- Everything is a prototype thats why its one of a kind!!

View TheDane's profile


4930 posts in 3081 days

#8 posted 04-24-2015 03:49 PM

The hose I am using is a Rockler Expandable (3’ expands to 21’ ... ). With it, I can easily reach any machine in the shop.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View timbertailor's profile


1591 posts in 842 days

#9 posted 04-24-2015 06:23 PM

Here is my mobile design that is also on wheels for moving it from tool to tool. Maybe you can get some ideas to reduce your current footprint and make it more mobile.

-- Brad, Texas,

View AZWoody's profile


680 posts in 642 days

#10 posted 04-24-2015 11:46 PM

That much hose is going to kill your cfm.

Here’s a Clearvue cyclone forum post on the amount of suction loss on hose vs ducting.
I know on pipe, 30’ run you will lose about a quarter of your capacity.

Hose at that long, and especially if it’s not perfectly straight will really be noticeable.

The mobile cart would really be the most efficient method if you don’t go the route of running pipe to the machines.
The shorter the length of hose, the better.

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