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Filter Kit for Harbor
Freight, Jet, Delta, Grizzly, Shop Fox, General, Wood Tek, and Penn
State. |
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| For over five years, our 35A Series
Filters have been
built specifically as upgrade replacements for the balloon bags used on
hobby-type dust collectors. With thousands of units shipped, we have
developed a wealth of experience upgrading these systems.
Upon startup with a pleated cartridge
filter, the first thing you
will notice is a huge increase in airflow, as compared to the original bag
arrangement. This is due to the large surface area of the cartridge
filter. Remember, doubling the surface area of a filter results in a
four-fold decrease in pressure. Stock bags offer about 35 sq. ft.
of area, so a 100 sq. ft. to 274 sq. ft. cartridge makes a big
difference.
(Click Photo to Enlarge)
In addition to the increased flow, the filtration efficiency of your
system is also improved.
This is partially due to the increase in surface area, but is mainly due
to the improved performance of the filter media. Our standard
35A274BLOL filter is rated 99.99% efficient at 0.5 microns after an
initial break-in period.
For more info on filter efficiency ratings click
HERE.
Our most recent addition to this product line is the
35A274NANO, which uses the next generation of Nanofiber Laminate filter
media. These filters carry the MERV 15 rating, so they have a very
high efficiency, right out of the box, with efficiency tapering off at
about 99.999% at 0.5 microns.
For more info on Nanofiber filters click
HERE.
Note that there are several different basic styles of dust collector
being manufactured out there. They all look pretty much the same,
but there are subtle differences in the diameter of the rim, and the
size and shape of the orifice plate (separation ring, cone). We
are slowly accumulating a database of the different variations, and have
listed our notes on a separate page. Click here
for our Application Notes, to see if we have
your model listed.
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35A100SBOL
$150.00 each |
35A274BLOL
$106.00 each |
35A274NANO
$165.00 each |
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Included with the kit:
(1) Filter #35A100SBOL
17.5” x 23”
Open-Closed
100 Sq. Ft. of 100% Spun Bond Polyester
MERV 11
99.995% efficient at 1.0 micron and above
Washable
Outer Screen, No Inner Screen
(3) Turn Buckles
(3) Poly Bags
Instructions |
Included with the kit:
(1) Filter #35A274BLOL
17.5” x 23”
Open-Closed
274 Sq. Ft. of 80/20 Blend Paper
MERV 10
99.99 % efficient at 0.5 micron
Outer Screen, No Inner Screen
(3) Turn Buckles
(3) Poly Bags
Instructions |
Included with the kit:
(1) Filter #35A274NANO
17.5” x 23”
Open-Closed
274 Sq. Ft. of Nanofiber Media
MERV 15
99.999 % efficient at 0.5 micron
Outer Screen, No Inner Screen
(3) Turn Buckles
(3) Poly Bags
Instructions |
Also Available- 4 mil Poly Bags (10-Pack), Part #1940PB...........$13.00/pack |
Which filter should you use? Well,
it depends on how much wood you process, the type of wood, how much fine
dust you produce, and your sensitivity to certain chemicals found naturally in
wood. These are all good filters, and are pretty evenly matched regarding flow and pressure drop. The Spunbond is the technically "correct" filter to use on wood dust, because it will handle fibers. Over the years, however, we have proven that the
80/20 blend "paper" filter works very well. The paper filter is
about the same efficiency, and
is a bit less expensive, but you can't wash it. The Spun Bond media is rated at 380 psi burst strength, wet or dry;
whereas the 80/20 blend paper is 45 psi dry, and only 25 wet. The newer
Nano filter is extremely efficient, and based on field trials, seems to clean as
well as the 80/20 blend. We expect them to last as long, or longer than
the 80/20 blend.
All are easily cleaned from the outside with compressed air (leave the filter and bag in place), or they can be vacuumed from the inside with a shopvac.
Our recommendation? The Spun Bond is the best overall filter...it's basically a lifetime
filter. For the hobbyist, however, the 80/20 blend is such an improvement
over bags, it's really hard to pass up. The Nano filter delivers the
ultimate in efficiency, and should be used whenever an extra level of confidence
is needed.
| Installation
Procedure: |
(Click Photo to Enlarge)
|
a) Remove the Filter from its shipping box.
b) Unplug Dust Collector from its power source!
c) Remove factory filter bags from your dust collector. Save the straps for
later use.
d) Center the Filter on the dust collector’s conical ring.
e) Attach and snug the Turn Buckles from the inside, as shown in above
Photo.
f) Replace lower bag with Poly Bag (stretch it to fit). Replace lower strap.
g) Start system and enjoy the improved flow and increased efficiency!
We'd like to thank Bill Pentz
for his input and support with this project.
Bill has has worked tirelessly to inform the public about the importance of air quality in the
home wood shop, and anyone working with wood should familiarize themselves with
his work. Bill's website is full of valuable information on hobbyist dust collection, and can be found here:
http://billpentz.com/woodworking/cyclone/DCConversion.cfm
Due
to the large volume of calls we get for shipping
rates, we've included a special page, with rates to anywhere in the lower 48
states. Please click Here.
We accept MasterCard, Visa, and American Express.
UPS charges will be added to your order.
Most orders will ship the next day.
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