Dust Collector

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Forum topic by IowaWoodcrafter posted 01-11-2008 04:22 AM 1651 views 0 times favorited 5 replies Add to Favorites Watch
View IowaWoodcrafter's profile


280 posts in 4560 days

01-11-2008 04:22 AM

I currently own a Sears Craftsman 21337 1.5 HP dust collector. This months issue of Wood magazine has a review of 15 different dust collectors. The Craftsman didn’t do too bad except in the bag filtration category. The reason for the low rating is that it has a 30 micron bag instead of a 5 micron or less. The top model was the Delta 50-760 with a 1 micron bag followed by the Grizzly G1028Z with a 2.5 micron bag.

I’m concerned about the 30 micron bag on my Craftsman. I don’t want to run out and buy a new dust collector, though I will for health reasons if I have to. I’ve looked at the Grizzly G1028Z and it looks like I could use the bag on that unit with my Craftsman. Is this a good idea? What concerns should I have by using a different manufacturers bag?

I’ve sent an e-mail to Grizzly to find out what the cost of a replacement bag would be for the G1028Z. If the bag runs less than $50 I’ll likely buy one unless I hear concerns from you folks. If the bag is up around the $100 or more price I think I’ll just buy the Delta and sell my Craftsman.

-- Owen Johnson - aka IowaWoodcrafter

5 replies so far

View GaryK's profile


10262 posts in 4472 days

#1 posted 01-11-2008 04:29 AM

I really don’t see what the problem would be except that motor having to work harder pushing
the air through a finer bag. But if your motor HP rating is the same as the Delta or Grizzly I would say
it would work fine.

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View motthunter's profile


2141 posts in 4283 days

#2 posted 01-11-2008 02:59 PM

most of these machines are made in the same factories and painted different colors. I have been in the factory in taiwan that makes the same wood lathe for 6 different companies. Mos tlikely the bag will fit. Check the port diameter on yours and check the spec on the grizzley site.

-- making sawdust....

View Bob #2's profile

Bob #2

3810 posts in 4506 days

#3 posted 01-11-2008 03:15 PM

Take a good look at the Lee Valley bags. They are of excellent material and somewhat taller than the standard issue giving more surface area against the finer mesh in the material.


-- A mind, like a home, is furnished by its owner

View blackemmons's profile


13 posts in 4319 days

#4 posted 01-11-2008 06:34 PM


I use to have bag over bag Grizzly DC. The first thing I did was to replace the top bag with an oversize bag from It not only increased the flow but the filtration was excellent.

When you call them they are very helpful in helping you make a decision as to what you want and what you need.

After putting their bag on the machine seemed like a totally different collector. The bag is custom made but the cost was less than $100 and well worth it. I did have to modify the support for the upper bag because it was higher than the old one.


View IowaWoodcrafter's profile


280 posts in 4560 days

#5 posted 01-11-2008 07:50 PM

Thanks for the information everyone. After going back and reading the whole article I discovered what many of you have said. According to the article a bag with smaller micron filtration actually improves the performance of the dust collector, both air flow and air quality.

Blackemmons, the article had a link to the americanfabricfilter web site. I was going to call them today to get a quote.

Bob, thanks for the info about the Lee Valley bags. I’m going to compare prices between the American Filter and those. If the price difference is minor I’ll likely go with the American Filter because they are 1 micron while the Lee Valley says a clean filter traps 3 – 5 micron dust. Whichever way I go I know I’ll end up with a healthier environment.

The article also says that replacing the lower bag with one made of plastic helps performance and quality. They also recommend wrapping weather stripping around where the bag attaches to the unit to improve the seal. It’s a great article, I highly recommend getting this issue for it alone.

-- Owen Johnson - aka IowaWoodcrafter

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