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Buildup inside filters
helps trap dust better
Better
suction/
worse
filtration
Thinner cake
Thicker cake
Better
filtration/
worse
suction
Filter medium
Contrary to what you might think, dustcollection filters actually perform at their worst
when brand new. That’s because trapped dust
particles in the filter medium, called a dust
cake, actually prevent larger particles from
slipping through. But this also tends to reduce
airflow because it forces air to pass through
a thicker barrier. To improve suction that’s
dropped below your “normal” standard, knock
the dust loose from the filters; if you’re getting
adequate suction, leave the filters alone.
download a free article with step-by-step
instructions at woodmagazine.com/
wholeshopdc. Once you’ve calculated
the total SP loss, find a collector that will
overcome that much resistance while
maintaining at least 800 CFM.
Trapping the dust in the filter means you won´t breathe it
900
Particle count in shop air /cu. ft. (> 1 Micron) x 1,000
Buildup inside filters
helps trap dust better
800
700
600
500
400
300
200
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tored and maintained over time. And, a
collector’s high air velocity can force
dust particles, especially those smaller
than 3 microns, through the filter if air
pressure in the filter is too great.
up MDF dust to fully load the filter
media, replicating filter performance
months or years down the road. This
built up a layer of dust inside the filter
known as a dust cake. (See the illustration above left to understand the role a
5
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9
Number of passes sanding 12" x 48" MDF sheets
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Although all of the filters meet industrial regulatory air-quality standards, those that keep
airborne particle counts low allow you to work in the shop longer without discomfort.
So the lower and flatter the collector’s performance line, the better the air quality will be.
Now return clean air to the shop
All the test models have filter bags or
canisters rated to trap nearly all dust
particles 2 microns or larger in size. To
test each collector’s filtering ability, we
first “seasoned” all the filters by sucking
Small leaks let fine dust escape
clearing the air or leaving the shop to let
dust settle.
But the filter media isn’t necessarily
the main source for dusty air. Leaks on a
collector can also contribute significantly to the particle count. We found
leaks around bag rims (shown above
right), spot welds, and unsealed joints on
all but the Laguna and Oneida machines.
We patched these leaks by adding foam
weather stripping around bag rims, and
silicone caulking on other visible leaks.
This improved the air-quality reading
with each fix, but will need to be moni-
100
0
So how big is a micron?
dust cake plays in a filter.) With that
accomplished, we sanded MDF sheets—
for material consistency—with a drum
sander, and used a digital particulate
meter to measure the number of dust
particles larger than 1 micron floating in
the shop air during and after each pass.
As shown in the chart at left, the Oneida
V-System 3000 cyclone did the best job at
trapping dust particles during use. The
Penn State Tempest cyclone, Powermatic,
General International 10-210, and Laguna
all performed well, too.
To help interpret these filtration
data, we shared our test results with
Patrick O’Shaughnessy, a professor in the
University of Iowa’s Department of
Occupational
and
Environmental
Health. Patrick told us that all of the airquality measurements shown are within
the acceptable limits established by the
National Institute for Occupational
Safety and Health (NIOSH). However,
our testers observed more throat and
nasal irritation when testing the four
units that demonstrated a steep rise in
particle counts, as shown in the chart.
Patrick also cautions that the performance of each collector could likely
change—but still be relative from
machine to machine—based on different shop conditions and the amount
and length of work you do without
Oneida
V-System 3000 Cyclone
Penn State
Tempest 1425S Cyclone
Powermatic
PM1900TX-CK1
2-Bag + 2 Canisters
Laguna
MDC0560 Portable Cyclone
General Int.
10-210 4-Bag
Grizzly
G0440 Cyclone
JDS
Dust-Force 2500 4-Bag
Grizzly
G0562Z
2-Bag + 2 Canisters
Delta
50-761 4-Bag
The dust-collection industry and health
regulatory agencies measure air particles
by microns. One micron equals .001
millimeter—far too small to see without
magnification. By comparison, human hair
typically measures about 40–60 microns in
diameter. Dust particles smaller than 30
microns—most of them nearly invisible—
can remain airborne for about 30 minutes
before settling, so it’s important to trap
them before they get into the air. And
some woodworkers are more sensitive to
dust from different wood species, such as
western red cedar, walnut, sassafras, and
imported varieties, so for them clean air
proves even more critical.
Dust leak
Band clamps don’t always form a tight seal when
securing a bag, which is usually oversize, to the
machine’s rim, creating a dust leak under pressure.
Finally, dump the dust
When the collection drum or bags fill
with debris, you should be able to empty
them without creating a dust cloud.
Unfortunately, that’s seldom the case.
The Grizzly and Laguna cyclones make
this easiest with steel drums on casters
that conveniently roll out from under
FILENAME: 218DustReview4_#100.ai
Date: 1-13
Lorna J.
Delta 50-761, $1,000
800-223-7278, deltamachinery.com
General International 10-210, $870
888-949-1161, general.ca
Grizzly G0562Z, $675
800-523-4777, grizzly.com
Grizzly G0440, $1,375
800-523-4777, grizzly.com
JDS Dust-Force 2500, $970
800-480-7269, jdstools.com
Laguna MDC0560-0145, $1,349
800-234-1976, lagunatools.com
The only single-stage collector with its motor and
impeller not positioned on the base, but rather at the
height midpoint, the 50-761 demonstrated less airflow
than all but one other unit. Because of this design,
you’ll have to add an additional 90° fitting to hook up
ceiling-mounted duct, adding more resistance.
The 10-210 sports a good combination of airflow and
filtration. It has an adjustable vane inside the plenum
(the curvy Y-shaped discharge chute) to let you control
the flow of debris into each bag. It comes with two
extra plastic collection bags.
The G0562Z moves dust nicely, but with the most leaks
around welds, connections, and bag rims of any test
unit, it also sent much of the fine dust back into the air.
Made of the lightest-gauge steel among the group,
this machine displays more wobble than others when
moving around the shop.
This collector has the largest footprint of all the test
machines. Its pulley-operated up-and-down filter
cleaner worked well. It was loudest in the test, and
so-so on dust containment. A small hose connects to
the drum, providing suction to draw the disposable
liner against the sidewalls, helping the bag fill better.
Made with heavy-duty components, the Dust-Force
2500 does a good job of collecting dust. Although we
sealed leaks around the bag rims with foam weather
stripping, fine dust continued to escape into the shop
air. If you prefer more-efficient canister filters, get this
machine in that configuration for a $400 upcharge.
A compact, portable cyclone with limited suction
ability, this machine ran the quietest, filtered dust well,
and its drum proved easy to dump when full. (A wire
screen sits inside the disposable bag to help it fill to
capacity.) Its radio-frequency remote control lets you
start the collector without aiming directly at it.
60
WOOD magazine May 2013
woodmagazine.com
61
Roll out, tie it, toss it
DUST COLLECTORS SUITABLE FOR A ONE-MAN SHOP
PERFORMANCE RATINGS (1)
DIMENSIONS
MATERIAL (3)
FILTER MEDIUM RATING, MICRONS
COLLECTION DRUM/BAG CAPACITY, GALLONS
INLET DIAMETER, INCHES
INCLUDED INLET REDUCER
OVERALL DIMENSIONS, INCHES (W×D×H)
2
3
3
12
12
123⁄4
S
A
S
1
2
1
30
83
73
6
6
7
4"×3
4"×3
4"×3
57×19×87
60×321⁄2×76
58×32×71
JDS
DUST-FORCE 2500
B+
C
B-
C
B+
C
B
3
131⁄4
S
1
84
8
4"×3
55×21×75
POWERMATIC
PM1900TX-CK1
A
A-
A
C+ B+
B
F
3
14
S
2
75
8
4"×3
60×30×72
R
A-
B
A
A
B-
C
2
141⁄2
S
2
35
7
NONE
59×373⁄4×931⁄4
F, R, S
2
141⁄2
S
1
29
6
4"×2
36×26×74
R, S
D, F, N
A, R, S, W
D, F
A
SELLING PRICE (6)
DIAMETER, INCHES
B
B
F
COUNTRY OF ASSEMBLY (5)
RATED MOTOR HORSEPOWER
B
C
C
WARRANTY, YEARS
COLLECTOR TYPE (2)
AB
B-
MEASURED 20' FROM COLLECTOR
CLARITY OF OWNER’S MANUAL
C+
C
C
MEASURED 10' FROM COLLECTOR
EASE OF ASSEMBLY AND INITIAL HOOKUP
BBA
CORD LENGTH
EASE OF EMPTYING COLLECTION DRUM/BAGS
C
AC
OPTIONAL
EASE OF CLEANING FILTER
BB+
A-
MODEL
STANDARD
FILTRATION
SECONDARY
50-761
10-210
G0562Z
MANUFACTURER
A
A, C
A
12'6"
8'
10'
84
87
87
81
83
84
5
2
1
C
T
C
$1,000
870
675
SINGLE-STAGE COLLECTORS
C
10'
86
84
1
T
970
6'6"
86
84
5
T
1,300
6'
90
88
1
C
$1,375*
10'6"
77
73
1
T
1,349
10'
79
77
1
U
1,595†
TWO-STAGE CYCLONE COLLECTORS
GRIZZLY
LAGUNA
G0440
MDC0560-0145
C
A-
A-
C
A
B-
C-
P
ONEIDA AIR SYSTEMS
V-SYSTEM 3000
B
A
A-
B+
B
A
C
3
14
A
0.5
35
6
NONE
50×30×841⁄2
PENN STATE
TEMPEST TEMP1425S
B
A
B+
B
C
C
C
2.5
14
A
0.5
26
7
7" to 6"
58×261⁄2×94
1.
A Excellent
Good
B
Fair
C
A, N
2. (B) 2 filter bags, 2 collection bags
3. (A) Aluminum
4. (A)Ductwork, flex-hose, and fittings 5. (C)China
2. (C)
Stationary cyclone
3. (S)Steel
(C) 1-micron canister filters (T)Taiwan
2. (F) 2 canister filters, 2 collection bags
(U) United States
(D) Fiber collection drum 2. (P) Portable cyclone
(F) Floor stand
(N)Noise reducer
(R)Remote-control starter
(S) Steel collection drum
(W) Wall-mount kit
Two types, two good choices
Oneida Air Systems V-System 3000, $1,595
800-732-4065, oneida-air.com
Penn State Tempest TEMP1425S, $1,355
800-377-7297, pennstateind.com
Powermatic PM1900TX-CK1, $1,300
800-274-6848, powermatic.com
With the smoothest-running impeller, heaviest-gauge
steel, best overall fit and finish, and superior dust
filtration, this 3-hp cyclone was the cream of the crop.
Another plus: It’s second-quietest, below the threshold
of potential hearing loss (85 dB). An optional wall-mount
kit would improve access to the collection drum.
At 94" tall, this Tempest managed to just fit under our
8' ceiling. It delivers a great combination of airflow
and filtration, but an impeller that rattles and shakes
when coasting down and a filter cleanout that’s attached with just silicone causes us concerns about the
machine’s longevity and future maintenance.
With an 8" inlet and the best suction of the group,
this machine provides lots of options for setting up
a ductwork system. It’s well-built with heavy-duty
features and nice touches, such as an electronic starter
with remote, a base wide enough to support bags full
of chips and dust, and handles for easier maneuvering.
62
NOISE LEVEL,
DECIBELS
ACCESSORIES (4)
DELTA
GENERAL INTERNATIONAL
GRIZZLY
With this Grizzly G0440 and the Laguna, you empty
the chips and dust by removing a disposable
plastic bag inside the roll-out drum.
their separators, as shown above. Penn
State and Oneida have casterless fiber
drums that proved more difficult to
remove from the separator because of a
short length of connecting flex-hose that
must be compressed and the limited
space in which to lift the lid. Shortening
the hose an inch or so improved this.
The single-stage collectors all use disposable plastic bags, and all but the Delta
have about twice the storage capacity of
the cyclones’ drums. (Oneida sells an
optional 55-gallon drum; ours was 35.)
But removing those bags from the
machines often results in dust spilled on
the floor and spewed into the air.
IMPELLER
AIRFLOW
PRIMARY
CENTRAL-COLLECTION SYSTEM
WOOD magazine May 2013
When making a decision on which models to recommend, we put the most
emphasis on airflow and filtration. We
could not identify a clear advantage for
one type of collector versus the other:
The two best machines—one singlestage unit and one cyclone—would be
welcome additions to any shop. That’s
why we awarded two models our Top
Tool award.
If you have or plan a duct system that
demands high airflow to overcome
static-pressure loss, then get the singlestage Powermatic PM1900TX-CK1. It
delivered the most airflow, ranked near
woodmagazine.com
the top in fine-particle filtration, and has
nearly twice the chip-storage capacity of
the cyclones.
If you don’t require that much airflow
but desire greater filtration ability, then
go for the Oneida V-System 3000
cyclone. It proved best in our test at trapping dust, and its airflow should support
a duct system for most typical home
shops. The Oneida made an impression
on us with its high-quality components,
such as heavy-gauge steel and the
smoothest-running impeller in the test,
and seems best suited to stand up to
years of use.
6'
84
82
5
C
1,355‡
6. Prices current at time of article production and do not include shipping, where applicable.
(*) $1,150 without optional floor stand (H7499)
(†) $1,560 without optional floor stand but with 35-gallon
fiber drum; or $1,623 with optional 55-gallon fiber
drum and floor stand
(‡) $1,095 without optional floor stand (TEMSTAND2)
More Resources
 Learn more about how to choose a
dust collector for your shop at
woodmagazine.com/choosedc.
 Read editor and user reviews of these
dust collectors and others, as
well as accessories to improve the
performance of your machines,
at toolreviews.woodmagazine.com.
Produced by Bob Hunter with Tom Brumback and Doug Ley
63