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Hello, Lumberjocks. Pardon the interruption but this thread mentions our company, DAMN FILTERS, and I think it's fair that we comment.

First, even though we're in the business of industrial filters, we are not equipped to advise or supply small to mid-size woodshop dust collection projects. We love you guys, and we have several woodworkers on staff, but it's just not our thing. There are other companies, like Wynn, who do specialize in filters and fittings for shop collection. We encourage you to use them a resource…and by all means, if you are looking to supply your fleet of industrial collectors with high-quality/great-value filters give DAMN FILTERS a call…and expect some mild swearing to happen.

Second, the swearing. We've started a new "Minimal Cussing" policy and we'll strictly enforce it beginning in 2019. From now on DAMN employees will not swear at customers unless the customer swears at them first. Furthermore, the return-swear will be equal to the insult-level of the original curse. Example: If a customer calls us a "Son of a #%&*@" we will not start dropping f-bombs. But if someone pulls out the f-bomb, it's open season. I hope that clears things up a little.

Happy New Year!

Pete S.
 
When running my business, I looked into the merit of a BBB listing. Too, I ve dealt with BBB s to complain about companies. From those experiences, I submit they are as or nearly as worthless as a congressman or woman.

After a bit of investigating, it became obvious the BBB s were not overly inclined to report complaints about their paying members. The BBB admitted it took several complaints to result in a report to the public, and the company had to let the complaint stand unchallenged.

In short, though we d do well to consider a BBB complaint, it is one of the last places I d rely on to determine the good of a company.

- Kelly
AMEN!!!! The BBB is not an enforcement agency….they earn their revenue by their subscription fees from businesses. Would you bite the hand that feeds you?
Just my .02
 
I am using a Donaldson filter intended for a Diesel truck as well. PN P181038 worked for my Grizzly 2HP unit and I ordered it from www.finditparts.com I have 0 problems with the reseller or the filter and will probably go back to them whenever I need another.
 
The P181038 is 17"OD and 23" high just like the Wynn 35 series filters.

You certainly could stack them with minimal modification and increase the filter area, but the single filter is already a significant increase in filter area over the bag that came with. I think without a larger impeller, more filter area is going to have minimal improvement.

On the PN P181038, since they re so small, do you stack three or four, or build an adapter to mount them to increase surface area for air draw?

Obviously, these wouldn t compete with the 20" diameter versions otherwise.

- Kelly
 
Thanks. The site I first pulled up using this number indicated it was somewhere under 12" in diameter (around 10" ID).

Even the larger size you indicate might be a bit small for my Jet 1900, even though it would take two.

All that aside, I have a little Jet cartridge unit and, each time I cleaned the filter, a good portion of the dust would land on the plate between the mount area for the filter and the filter. Because of this, I'd start it up and it seemed my cleaning effort was a waste of time.

When I took the cartridge off to inspect for the whys and wherefores of the degrading performance, I noted the not insignificant buildup on the plate. It was obvious, to me, starting the collector again just pulled all the dust on the plate right back into the pleats again.

So, I took to shaking the entire beast, after a cleaning. When doing so, I noted a great deal of dust fall into the clear bag. After taking this approach, I noted a HUGE performance jump, from each cleaning.

From this, if I were to make an adapter to allow the smaller diameter filters to run on units intended for a 20" diameter bag or cartridge, I'd make the adapter several layers of plywood thick and the inside would be steeply beveled, sanded and sealed, to reduce the likelihood of the same kind of build up that happened to my plate happening with the adapter.

The P181038 is 17"OD and 23" high just like the Wynn 35 series filters.

You certainly could stack them with minimal modification and increase the filter area, but the single filter is already a significant increase in filter area over the bag that came with. I think without a larger impeller, more filter area is going to have minimal improvement.

On the PN P181038, since they re so small, do you stack three or four, or build an adapter to mount them to increase surface area for air draw?

Obviously, these wouldn t compete with the 20" diameter versions otherwise.

- Kelly

- RobHannon
 
I have the HF Dust collector, I use the stock cloth bags. I believe the advantage of replacing the bag with the filter is surface area, hence more airflow. Since I have no comparison data its hard for me to judge how good a filter would work, but my stock bag filter works very well, My jointer does not clog up on use, my Plainer works fine, my table saw has some topside blow back but its what I would expect. I have the Dust collector in and adjoining room with my shop plumbed with 4" drain PVC pipe. I also have a garbage can chip separator, that fills up at about 5 to 1 ratio with the lower bag on the collector. Interestingly enough the adjacent room is my bicycle room, there is virtually no dust on anything in there. I had thought about adding a filter, but its almost the same price as the dust collector. How good can it be.
 
Just FYI - since this thread has been resurrected..
I built my system to use FARR style (flanged) filters. I have used a single-filter with the HF blower for a few years. Sold that and got a Grizzly 3HP that outputs into a pair of 34" 2959sf 0.5 micron nano-fiber filters. Wynn claimed 300sf, all others were either 295 or 297sf.

Priced at Wynn - $128 ea - they refused to sell them for dust collection use stating that the internal cage would catch shavings! Personal experience was just the opposite.
Priced at Damn and FilterProfessor - both had good filter pricing (around $135) but almost $100 freight charges.
Purchased from Cardinal Filter (https://cardinalfilters.com/) for $142ea for the 2 filters but delivery (total) was just $24, so actually saved $60+.
PN for the OEM FARR is 125154-008, at Wynn it's 9E300NANO.

The output of the blower feeds directly into a plenum box, from which you can hang one or two of the flanged filters - a snap to slide out to clean. easy to build from some MDF, and very low pressure loss this way.

I used the closed-end filters - no bags hanging from them. After 4 years had no chips or anything but fines in the filter. Cleaning the filter just once during that time produced less than a cup of fine dust.
 
I have the HF Dust collector, I use the stock cloth bags. I believe the advantage of replacing the bag with the filter is surface area, hence more airflow. Since I have no comparison data its hard for me to judge how good a filter would work, but my stock bag filter works very well…

.... I had thought about adding a filter, but its almost the same price as the dust collector. How good can it be.

- Rich_LI
The biggest advantage is that the filter collects the micro particles, the ones that damage your lungs without you even knowing it. How good can it be? Consider the value of your lung function and overall health over time.
 
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