DC Canister Filters

[jackellis]

The used 3hp DC I purchased several months back came with well used cloth bags. I'm thinking I should replace them with canister filters for ease of cleaning. The ring is a shade under 20" in diameter, and it appears the Grizzly replacements will fit - in fact, although the nameplate is different mine looks just like the Grizz G0562. I checked the Wynn web site and it appears I would have to build a donut for their 35 series filters (actually 2 donuts since the unit has four cloth bags).

Is anyone aware of other sources for canister filters that will fit a 20" ring other than Grizzly?

[drumpriest]

2 donuts and 2 plastic bags. Is the Jet perhaps the same size? Then the dust dog filters would work, but I'm betting the Wynn filters are a lot better, as mine (Jet) is 2 micron

[LCHIEN]

jet and penn state both make kits that will add on just like the grizzly - I have the grizzly.

I have posted all the model number some time back a year or two ago.

[dbhost]

Not sure where you get that idea. The Wynn 35A is a drop in to the HF 97869. The inlet ring on those is just over 19". I believe something like 19.5",

I'd say take actual physical measurements of your inlet ring, both the outside flange, and the hole in the middle, and call Wynn. They are really helpful folks. The lady that answered the phone couldn't answer my dumb questions right off hand, but got the answer for me from Dick Wynn and got right back to me...

[jackellis]

Not sure where you get that idea. The Wynn 35A is a drop in to the HF 97869. The inlet ring on those is just over 19". I believe something like 19.5",

This page is the only one on the Wynn site with dimensions for the 35A. I wrote them a note this evening.

I'll likely get either the Wynn or the Grizzly but I'm trying to find out what other alternatives there are before I take the plunge. The Wynn paper filter is a lot cheaper than the Grizzly and filters down to 0.5 microns, but I can buy the Grizzly with "free money" (Amazon reward certificates) and I need two.

$75 for the dust collector, $250-350 for filters. Makes sense, right?

[dbhost]

Check out their Application Notes Page. They don't list the specific Grizz model, but do show a 20" orafice plate model but needs different size turnbuckles. No big deal, just get over to Ace Hardware and fish through their turnbuckles to get the right ones...

In my case, $143.00 for the DC, $175.00 for the filter (shipped spun bond).

Not sure how often you are going to need to clean your filters, but I chose the spun bond for cleanability sake...

Does the Grizz Canister use washable media? Something to consider I guess.

[Rich P]

DC is a bit like turning. The lathe is the cheap part.

I have the 35A installed on the HF unit (here in Los Altos), so if you want to drop by to see it just PM me.

[jackellis]

I saw Rich P's setup this afternoon (thank you very much, Rich) and have decided a pair of the Wynn 35A series 80/20 filters are the way to go. I probably need a separator upstream of the impeller to protect it and the filter, but for the time being, I think I'm going to fabricate either a Thien separator to fit inside the orfice ring or a guard made of screen that fits underneath the canister to protect the filter from damage.

At least I don't have to buy pipe and flex hose. Got plenty of that with the DC.

[dbhost]

Unless you suck up nuts, bolts, nails, screws and maybe the neighbor's cat, I don't think anything that is SUPPOSED to go through a DC will hurt the impeller. Maybe if it is run 24x7x365 for years I could see it, but not in a hobbyist shop. Not even an obsessive compulsive hobbyist shop...

The only drawbacks I can see to adding a Thien Baffle to the inlet ring of a twin canister rig is that you have two baffles to build, you have two waste bags to replace / empty more frequently than say a separator dust bin (trash can) and the impeller isn't protected... But you save on fittings, hose, and floor space for the dust bin...

It's a tough choice...

And yeah, with dust collection, the DC itself is the cheap part. I paid $143.00 after sale price and coupon for my HF 2HP DC... I have about $800.00 in the dust collection system, including the shop vac based side of it, adapters, blast gates etc... And I could have EASILY gone to nearly $1500.00 had I used metal pipe in 6" instead of 4" S&D PVC.

[jackellis]

I sprang for two Wynn Series 35 filters today. Over the weekend, I fabricated a circle from some 1/4" MDF with a simple router jig and discovered that the inlet ring is probably not perfectly circular. Some weatherstripping or caulk will take care of the gaps. When the filters arrive, I can finish the donuts and see how it comes together. Also on tap, neutral vanes for each leg. I've been hoarding cardboard to make prototypes.

When I'm through, this thing should be capable of vacuuming up small children and my shop will be cleaner than Rods

[dbhost]

Just wondering, have you considered Thien cyclones instead of Neutral vanes? The Thien cyclone baffle will prevent scrubbing where the neutral vane will not...

I know it's more work, but it should be worth the effort.

[LarryG]

Some weatherstripping or caulk will take care of the gaps.

The Wynn filters come with weatherstripping around the bottom. It should seal okay, unless your inlet ring is REALLY out of whack.

I'm still not persuaded you'll need the donuts, but maybe so.