Magnet Sales
Manufacturing Inc.
&
10
Magnetic
Ideas
CERAMIC
R
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Magnet Sales & Manufacturing Company - a snapshot
ABOUT OUR COMPANY
Since 1955, magnets have been our business. From technical
assistance for high-tech applications to recommending
sensible magnets for down-to-earth ones.
ASSISTANCE IN SELECTING THE PROPER MAGNET.
AND CUSTOM FABRICATION TOO.
Experienced staff to help you select the right magnet for
the job. For more technical applications, we can model a
magnet on computer to predict it’s behavior. Plus we have
full fabrication facilities. To cut, score, slit, punch, or die
cut flexible magnets, or machine and assemble other hard
magnets.
HIGH QUALITY MAGNETS
FROM RARE EARTHS TO FLEXIBLES
Get just about every material available. In every grade and
strength. From the incredibly powerful Rare Earth magnets to
the extremely economical Flexible types.
OVER 6 MILLION MAGNETS IN
STOCK, AND AVAILABLE IN 24 HOURS.
COAST TO COAST.
Stock magnets can be shipped within 24 hours from one of
the largest magnet inventories anywhere. Over 6 million
magnets. So the magnet you need is probably in stock, even
if it’s not in this catalog. Plus we can provide scheduled
shipments to fit your production schedule.
SHORT RUNS ARE NO PROBLEM
Whether it’s one or a million, we have the capacity to
handle your needs, fast and competitively. We’re ready to
help you get your projects off the ground.
ABOUT OUR CATALOGS
We have so many magnets and there are so many
applications that we have published several catalogs to help
you locate the magnets you need. Some of these are:
High Performance Permanent Magnets - directed toward
the technical user.
Flexible Magnets - a comprehensive selection of rubber
type flexible magnets.
Magnets for Material Handling magnets for holding, lifting, cleaning, and identifying; used
for plant maintenance and material handling applications.
Magnetic Drives - custom magnetic couplings used for
non-contact drives.
Magnetic Systems for Scientific Applications - complex
custom magnetic assemblies such as Halbach arrays, used
for research purposes.
Catalog H - craft magnets for the small to medium sized
user.
Catalog R - craft magnets packaged for resale.
CONTENTS
SECTION 1: MAGNET MATERIALS
Flexible Magnets
Ceramic Magnets
Alnico Magnets
Neodymium Iron Rare Earth Magnets
Samarium Cobalt Rare Earth Magnets
Magnetization Patterns
Key Characteristics of Magnet Materials
SECTION 2: MAGNETS FOR THE OFFICE
AND SHOP
Magnetic Picture Hangers,
Coat Hooks, and Visual Aids
Pocket Magnets
Holding and Lifting Magnets
Magnetic Sweepers
Electromagnets
Magnetic Catches
SECTION 3: MEASURING, LEARNING,
AND FUN WITH MAGNETS
Measuring Magnetic Fields
Books for the “Technical Layperson”
Magnet Inventory Locations In
Pensylvania
Texas
France
United Kingdom
E-mail
[email protected]
Web
http://www.magnetsales.com
AMERICAN EXPRESS ®
®
SM
MasterCard
gn
.m a et
sal
e s.c o m
www
®
© Copyright 1999, Magnet Sales & Manufacturing Co., Inc.
No part of this catalog may be reproduced without written permission from
Magnet Sales & Manufacturing Company.
Important Note to Purchaser
All statements, technical information, and recommendations contained herein are based on tests we believe to be
reliable, but the accuracy or completeness of which is not guaranteed, and the following is made in lieu of all
warranties, expressed or implied:
Seller’s and manufacturer’s only obligations shall be to replace such quantities of the product proved to be defective.
Neither seller nor manufacturer shall be liable for any injury, loss, or damage, direct or consequential, arising out of
the use, or inability to use, the product. Before using, the user shall determine the suitability of the product for his
intended use, and user assumes all risk and liability whatsoever in connection therewith. No statement or
recommendation contained herein shall have any force or effect, unless in an agreement signed by the officers of both
user and seller. Colors shown in this catalog may not match that of actual product.
SECTION 1 : MAGNET MATERIALS
COST
General Information on Magnet Materials
1-2
Flexible Magnetic Strip
1-3
Flexible Magnetic Sheet
1-4
High Energy Flexible Rectangles,
Discs, and Rings
1-5
Ceramic 5 Discs
1-6
Ceramic 5 Bars and Blocks
1-7
Ceramic 8 Blocks
1-8
Ceramic 5 Rings
1-9
Ceramic 1 Discs, Rings, & Rectangles
1-10
Alnico Magnets
1-11
Rare Earth Neodymium Magnets
1-15
Rare Earth Samarium Cobalt Magnets
1-17
Notes on Magnetization Patterns
1-18
Key Properties of Magnet Materials
1-19
S
STRENGTH
RESISTANCE TO DEMAGNETIZATION
X
MACHINABILITY
A Quick Look at Different Magnet Materials
Modern magnet materials are available in many different alloys, each
designed to achieve a different objective. The ultimate objective is
usually to choose the most economical magnet that will do the job
reliably. Correct selection of the magnet material, size, and shape, can
give you just that. Tell us about your application, and we’ll help.
NEODYMIUM
SAMARIUM
COBALT
ALNICO
CERAMIC
Magnet
Materials
Color Index
FLEXIBLE
Here’s a quick look comparing the different magnet materials. This will
help guide you towards the magnet that you need. Please see page 1-2
for more information.
MAXIMUM PRACTICAL OPERATING TEMPERATURE
HELPING YOU CHOOSE
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Comparison of Magnet Materials
Dimensions and Tolerances
Flexible Magnets: very low cost, easy to use, easy to cut
with scissors or paper cutters, can be laminated with an
adhesive on one side making it very easy to attach to your
product. Normally magnetized with multiple poles on only
one surface to give higher holding strength. High energy
flexible magnets are similar in strength to the Ceramic 1
types, but are far easier to machine to specific shapes and
sizes.
All dimensions in this catalog are in inches. (To convert
from inches to millimeters, multiply the inch dimensions by
25.4.) The dimensions stated in the catalog are nominal
dimensions. Actual dimensions vary a little from the
nominal. The band within which the dimensions may vary
is the “tolerance band”. In general, you can expect a
standard tolerance of + 0.010" on the thickness if machined,
or + 0.020" if not machined. (The tolerance on the
thickness of Flexible materials is + 0.005".) On other
dimensions, the tolerances are the greater of + 0.020" or
+ 2% of the dimension.
Ceramic Magnets: low cost, yet relatively high strength, the
most widely used magnets today. Ceramic 5 and 8 are
significantly stronger than the Ceramic 1 types. A wide
variety of standard shapes and sizes are available. Hard to
machine, Ceramic magnets are highly resistant to demagnetization.
Alnico Magnets: The most temperature stable magnet
material, can be used up to 1,000 degrees Fahrenheit!
Alnico 5 should normally be used in long (in relation to the
other dimensions) lengths, to avoid self demagnetization.
Alnico 8 can be used short lengths. Very hard to machine,
Alnicos are relatively costly materials, containing large
amounts of cobalt. Alnicos require careful handling to avoid
demagnetization.
Neodymium Rare Earth Magnets: The most powerful class
of magnet materials available today. A Neodymium magnet
the size of a grape has the same strength as a Ceramic
magnet the size of a tennis ball - 9 times it’s volume!
Though costly, these magnets can be used very effectively to
miniaturize large components. Because of their high
strength, smaller magnets can be used to get the same energy. Extremely resistant to demagnetization, Neodymium
magnets have to be protected against rust - by encapsulating,
painting, varnishing, or, plating - and should not be used at
temperatures above about 300 degrees Fahrenheit without
careful design.
Samarium Cobalt Rare Earth Magnets: The most costly
magnet material, Samarium Cobalts can maintain their high
magnetic properties up to almost 600 degrees Fahrenheit,
and do not have any rusting problems. This material is
extremely brittle, hard to machine, and should be handled
with care to avoid chipping and cracking.
Please remember, we have a full machine shop and are able
to custom machine any magnet material to virtually any
shape, size, and tolerance.
The “Magnetization Direction”
M
Except for the low energy Flexibles and the Ceramic 1 types,
all magnet materials in this catalog are “oriented”. This
means that they can only be magnetized through one specific
direction. The orientation direction is shown by the
symbol M . The magnetic poles and therefore the strongest
surfaces are on either end of the arrows.
Assembling Your Magnets
Adhesives of various types are recommended to assemble
magnets to your product. All adhesives require that for best
results the surfaces to be bonded should be clean and dry. It
is best to experiment with adhesives for your product before
deciding on one.
Safety First
Large Ceramic magnets and all Rare Earth magnets can be
extremely powerful, and great care should be taken to avoid
injury to personnel who handle the magnets. All hard
magnet materials are brittle, so avoid dropping them or
allowing them to snap towards each other. And remember
that magnetic fields can destroy data on floppy discs and
should be kept away from sensitive electronic equipment.
FLEXIBLE
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SA LE S &
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CT U RI NC.
IN
Total Magnetic Solutions
The Ultimate in Versatility! Low cost EZ-Grip Flexible Magnetic Strip
makes your product instantly magnetic. From the largest inventory of
Flexible Magnets anywhere.
In convenient roll sizes. We supply rolls of about 12” diameter for ease of
handling. For material which is 0.060” thick, this is a 100 foot long roll weighing
in at about 5 pounds. For 1/8” thick material, 50 foot rolls are supplied. 1/4”
thick material is normally supplied in 100 foot rolls, 24” in diameter. Longer roll
sizes are available.
With or without pressure sensitive adhesive backing. Rubber based adhesives
(Type A) for general purpose indoor applications, and acrylic based adhesives
(Type T) for general purpose outdoor applications, are standard. Type T adhesives
perform better with plastics and other “hard to adhere” materials. Other non
standard adhesives are available to meet your requirements. We recommend that
adhesives be tested on your product prior to ordering production quantities.
Cut to length. We can cut strip to any specified length. Tolerances on cut
dimensions are the greater of + 0.030” or + 2% of the cut length.
Scored to length. Instead of cutting all the way through, material can be scored
to length. This allows greater ease in removing liner paper for adhesive backed
strip, and storage of material in roll form. To break off, simply bend the material
at the score line, and the part easily breaks to size.
Special non standard sizes, and custom extruded shapes. Call our sales team
to discuss special non standard sizes and shapes.
To order strip with adhesive, simply add the letter “A” or “T” to the part number. For
example, 0632A is 0.500” wide x 0.060” thick laminated with Type A general purpose
indoor adhesive.
Part No.
Thickness
Width
0643
0.030
2
0643A*
0.030
2
10003
0.045
1
10003A*
0.045
1
01604
0.060
1/4
01604A*
0.060
1/4
0632
0.060
1/2
0632A*
0.060
1/2
0630
0.060
3/4
0630A*
0.060
3/4
0639
0.060
1
0639A*
0.060
1
09604
0.060
1-1/2
0642
0.060
2
0642A*
0.060
2
0648
0.060
3
0633
0.093
1/4
0633A*
0.093
1/4
03206
0.093
1/2
03206A*
0.093
1/2
0640
0.093
1
0640A*
0.093
1
0644
0.093
2
0635
0.125
3/8
0635A*
0.125
3/8
03208
0.125
1/2
03208A*
0.125
1/2
04808
0.125
3/4
0645
0.125
1
0645A*
0.125
1
20008
0.125
2
0634
0.171
5/16
0637
0.180
7/16
10012
0.187
1
0638
0.250
19/32
* with pressure sensitive adhesive backing
I
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FLEXIBLE
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STANDARD SHEETING
Part No.
Size
Finish
8100
.010 x 24
Plain
8103
.010 x 24
Matte White
8220
.020 x 24
Plain Brown
8221*
.020 x 24
Plain Brown
8222
.020 x 24
Gloss White
8223
.020 x 24
Matte White
8223-C
.020 x 24
Assorted Colors
8320
.030 x 24
Plain brown
8321*
.030 x 24
Plain Brown
8322
.030 x 24
Gloss White
8323
.030 x 24
Matte white
8323-C
.030 x 24
Assorted Colors
8420
.045 x 24
Plain Brown
8620
.060 x24
Plain Brown
8621*
.060 x 24
Plain Brown
* with adhesive
SAFEMAG SHEETING
Part No.
Size
Finish
8322-SM .030 x 24 Gloss White
8323-SM .030 x 24 Matte White
Care Tips: If applying to a vehicle, both the magnet and vehicle
surfaces should be clean, dry, and waxed prior to applying. Generous
waxing prevents marring of painted surfaces, especially in hot
climates. It is best to remove the magnetic sheet weekly from painted
surfaces for cleaning and to ensure that moisture is not collecting
between the surfaces. (These precautions are not necessary when
using Safemag sheeting.) We do not recommend applying magnetic
sheet to repainted vehicle surfaces.
M AN U FA
SA LE S &
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CT U RI NC.
IN
Total Magnetic Solutions
cut with
scissors,
knives, or
dies.
EZ-Grip Flexible Magnetic Sheet
For signs, warehouse labelling, movable art, novelties, magnetic
business cards, magnetic frames and more.
Easily printable, grips tight to any steel surface.
In convenient roll sizes. 24” wide, 50 foot or 100 foot long rolls are
standard - smaller orders are gladly accommodated. Roll sizes up to 200
feet long are available on special request. A 100 foot roll of 0.030” thick
material weighs about 115 pounds.
With or without pressure sensitive adhesive backing. Standard are
rubber based adhesives for general purpose indoor applications, and
acrylic based adhesives for general purpose outdoor use. Adhesives should
be tested on your product to ensure that they are compatible prior to
ordering production quantities.
Cut to length. We can cut sheet to any specified length. Tolerances on
cut dimensions are the greater of + 0.030” or + 2% of the cut length.
Slit to width. We can slit standard 24” wide sheet to your specified
width. Slitting tolerances are the greater of + 0.060 or + 3% of the slit
dimension.
In eleven colors. Red, yellow, orange, blue, green, brown, black, silver,
gold, white vinyl laminates, and chrome mylar laminate. Call our sales
team to discuss availability of special colors.
With a protective backcoating. Safemag™ sheeting is backcoated to
provide a safe barrier between the magnetic surface and the surface to
which it is applied, an important new benefit to sign makers in applications such as vehicle signs. It also helps screeners when printed magnets
have to be stacked during the printing process.
Flexible magnetic sheet is sold by the square foot: for example, a 2 foot
wide by 5 foot long piece is 10 square feet. Our minimum order is 10
square feet.
HI-ENERGY
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RECTANGULAR MAGNETS
Part No.
L
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22F
1.000
0.750
0.187
0.187
24F
2.000
0.750
0.250
-
55F6001313
6.000
0.130
0.130
-
STRIP MAGNETS
Part No.
Thickness
Width
Magnetization
HF0464-M7
0 .060
1/2
multiple poles
HF08482PES
0.125
3/4
2 poles
HF1248
0.187
3/4
1 pole
M10016
0.250
1
2 poles
M30008
0.125
3
multiple poles
M60002
0.030
6
multiple poles
High Energy Flexible Magnets
Easy to machine and cut
Will not shatter or break
As strong as or stronger than hard
Ceramic 1 Magnets
Stronger (and more costly) than the regular flexible
magnet material, this High Energy Flexible material is
about the same strength as the hard Ceramic 1 types
(some grades are actually stronger than the Ceramic 1
types), but much easier to cut, machine, punch to
shapes, and otherwise customize.
Special magnetizing patterns are available to give the
best performance for your application. Please describe
your application to our sales-people so we can help
you select the best type for the job.
Please note that the thicker the strip, the shorter the
lengths that we can supply them in, since the strips get
increasingly difficult to coil as the thickness increases.
For example, strips which are 1/4" thick can be
supplied in maximum lengths of about 6 feet.
Shown here are a small sampling of the strip sizes and
a few of the more popular standard shapes and sizes
that we carry. Please ask if you have other size
requirements.
OD ID
T
ROUND MAGNETS
Part No.
OD
ID
T
42F12125
1.125
-
0.125
63F1410187
1.490
1.060
0.187
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CERAMIC
5
D
S
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S
C
Small but Powerful Ceramic 5 Button Magnets
Economical Magnet Power
Makes sense when counting
dollars and cents
Outstanding features of these magnets are their
low cost, good holding strength and great
value.
Ceramic magnets are a dark, “charcoal grey” color,
and do not appear metallic.
Part No.
D
T
42B3112
0.312
0.125
42B3725
0.375
0.250
42B5018
0.490
0.187
42B5020
0.490
0.200
42B5023
0.490
0.230
42B7515
0.710
0.156
42B7525-M1
0.710
0.200
42B7528
0.710
0.250
42B10015-M1
0.985
0.156
42B10025
1.000
0.250
42B10027
1.000
0.270
F50566
0.870
1.000
Some of these magnets can be magnetized with
several poles on one face to give greater holding
strength on that surface. (This gives a lower holding
force on the opposite surface.) Please talk to our
salespeople about your application, so that we can
help select the best magnetizing method for the job.
Other sizes available — ask us!
Typical applications include craft projects, badge holders, latches, display
boards, science projects, toys, magnetic jewelry, games, and many others.
M
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M AN U FA
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Total Magnetic Solutions
T
CERAMIC
&
B A R S
M AN U FA
5
B L O C K S
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G
CT U RI NC.
IN
Total Magnetic Solutions
Powerful Ceramic 5
Rectangular Magnets
Lots of Magnet Power available here!
Outstanding features of these magnets are their low cost, and
good holding strength. These magnets represent some of the
best value magnets anywhere.
Typical applications include holding, latches, science projects, toys,
games, and crafts, as well as more technical applications such as
sensing, actuating, and many others.
D
BLOCKS
Part No.
L
W
T
D
21986
1.875
0.875
0.250
-
21987
1.375
0.750
0.270
-
21988
1.750
0.875
0.387
-
21989
1.875
0.875
0.387
-
21990
1.875
0.875
0.387
0.187
0.43
M
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BARS
T
M
Part No.
L
W
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55B872218
0.875
0.227
0.187
55B973120
0.975
0.312
0.200
55B1001350
1.000
0.125
0.500
55B1002539
1.000
0.250
0.390
55B1173523
1.175
0.355
0.235
55B2001350
2.000
0.125
0.500
55B2007512
1.940
0.740
0.125
L
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M
D
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BARS WITH A CENTER HOLE
Part No.
L
W
T
D
55B756216
0.750
0.625
0.165
0.132
55B1007518
1.000
0.750
0.177
0.187
L
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CERAMIC
B
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8
K
S
Large Blocks Give Lots of Strength. Or we can cut
them to your exact specs.
Ceramic 8 Magnets are about the same
strength as the Ceramic 5 types under most
normal operating conditions.
They perform better under “dynamic load” conditions
(for example in motors, or at high temperatures). Use
these large blocks when you need to project magnetic
fields a long way, or need a lot of total magnetic field.
Also, we can use these blocks to cut magnets to
whatever size you need for your application.
M
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Part No.
L
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T
F83208
3.000
2.000
0.125
F83212
3.000
2.000
0.187
F84416
4.000
4.000
0.250
F86416
6.000
4.000
0.250
F86424
6.000
4.000
0.375
F86432
6.000
4.000
0.500
F86448
6.000
4.000
0.750
F86464
6.000
4.000
1.000
F810332
10.62
3.500
0.500
F810348
10.62
3.500
0.750
F810364
10.62
3.500
1.000
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CERAMIC
R
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5
S
Like other Ceramic 5 magnets, these ring shapes
are economical yet strong!
M
OD
From a little over 1/2" to over 8-1/2" in
diameter. Many other sizes are available
from stock.
Like other Ceramic 5 magnets, these ring shapes are
economical and yet strong. Ring magnets can be
magnetized either conventionally with one pole on
each surface, or with several pie shaped poles on one
or both surfaces to give very high holding forces.
ID
T
If stock sizes aren’t quite right for your application,
we can machine stock rings to fit.
Other sizes available — ask us!
Part No.
OD
ID
T
63B0552220
0.550
0.228
0.200
63BO6929118
0.690
0.290
0.118
63B1150250
1.180
0.500
0.250
63B1253719
1.250
0.375
0.188
63B1554250
1.500
0.540
0.250
63B1785155
1.765
0.855
0.155
63B2180270
2.100
0.800
0.270
63B23710028
2.375
1.000
0.275
63B23710037
2.375
1.000
0.375
F640
2.800
1.203
0.330
F643
3.376
1.280
0.425
63B43177425
4.330
1.770
0.425
F6455
7.500
3.250
0.745
63B8643866
8.660
4.330
0.866
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CERAMIC
D I S C S
,
R I N G S
&
1
R E C T A N G L E S
Non-Oriented, can be magnetized in
any direction.
Economical magnets available in many different sizes.
When magnetized with multiple poles on one side, can pull almost
as strongly as the Ceramic 5 types.
Because they are not “pre-oriented” they can be magnetized in any
direction, unlike most other magnet materials - across a diameter,
across any of the three dimensions of a bar magnet, or for that
matter in any other direction!
DISCS
Part No.
D
T
42A5015
0.500
0.150
42A5018
0.500
0.187
42A6218
0.625
0.187
42A13028
1.300
0.280
D
T
RINGS
Part No.
OD
ID
T
63A500925
0.500
0.093
0.250
63A501812
0.500
0.187
0.125
63A1047925
1.040
0.799
0.250
63A1082113
1.080
0.215
0.315
63A1123925
1.125
0.395
0.250
63A1095025
1.125
0.500
0.250
63A1132250
1.130
0.220
0.500
63A1181112
1.187
0.118
0.125
F405
1.230
0.885
0.431
63A1770375
1.705
0.705
0.375
OD
ID
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M AN U FA
RECTANGLES
Part No.
L
W
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D
55A705915
0.710
0.595
0.157
-
55A1007518
1.000
0.750
0.177
0.187
55A2007512
1.950
0.750
0.125
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ALNICO
H
O
R
S
E
S
5
H
O
E
hole
TYPE
A
TYPE
B
TYPE
C
Part No.
type
height
width
depth
pole
width
apprx.
pull
hole
dia.
100-1
C
1.000
1.125
0.312
0.250
2
-
100-2
B
0.750
1.125
0.750
0.250
13
0.187
100-4
B
1.000
1.500
1.000
0.312
20
0.187
100-6
B
1.125
1.750
1.125
0.312
25
0.187
100-8
A
1.812
2.187
0.937
0.500
30
0.187
100-10
A
2.000
2.218
0.937
0.625
32
0.250
100-12
A
2.250
2.625
0.937
0.625
40
0.250
100-16
A
2.500
3.000
0.937
0.750
45
0.250
100-24
B
1.187
2.500
1.875
0.625
60
0.250
Horseshoe and Round
Horseshoe Magnets
Strong pull through a
distance. Use for holding,
lifting, sorting, clamping, or
retrieving steel parts. Most of
these magnets have a hole in
the top for easy attachment
to conveyors, racks, and
other jigs.
Holding forces shown in pounds
D
A
C
B
Part No
A
B
C
D
Pull
200-1
0.500
0.375
0.187
0.156
1.5
200-2
0.750
0.500
0.218
0.187
4.0
200-3
1.000
0.625
0.218
0.187
6.5
200-4
1.250
0.750
0.375
0.187
12
200-5
1.500
0.875
0.625
0.250
16
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ALNICO
&
P O T
5
S H A L L O W
P O T
Pot Magnets
These are Alnico assemblies with a lot of holding power.
Both magnetic poles are on one side (the “strong side”).
They have a tapped hole on the non magnetic side for
easy attachment.
Part No.
300-1
300-2
300-3
300-4
A
0.688
0.812
1.062
1.375
B
0.625
0.750
1.000
1.187
C
0.125
0.156
0.156
0.187
tapped hole
1/420
1/420
1/420
1/420
pull
5
9
12
20
A
Shallow Pot Magnets
B
Similar to the Pot types, but “slimline”
versions. These magnets have a through hole for
attachment.
Part No.
400-1
400-2
400-3
A
0.750
1.125
1.500
B
0.312
0.344
0.406
C
0.147
0.190
0.190
D
0.220
0.300
0.300
pull
4
6
9
C
Holding forces are shown in pounds.
A
C
D
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B
ALNICO
R O D S
&
D I S C S
A
B
Remember, we have a huge variety of
Alnico magnets in stock. Only a few of
the most common sizes are shown here.
Alnico 5 rod magnets should have lengths
long in comparison to their diameters in
order to avoid self demagnetization - a
ratio of 5 to 1 is best. Any lengths can be
cut to your requirements. Part numbers
beginning with CG have already been
machined to tolerances of + .001. Part
numbers beginning with RR are “as cast”
and tolerances are wider - the greater of +
.015 or 2% of the dimension.
Sintered Alnico 8 is more resistant
to demagnetization than Alnico 5
material, and can therefore be used in the
thin disc shapes shown here without
self demagnetization. Like the Alnico 5
material, Alnico 8 has excellent temperature
stability and can be used to 1,000 degrees
Fahrenheit!
CAST ALNICO
5 ROUND MAGNETS
Part No
A
B
M7103
0.187
1.000
CG705-750
0.250
0.750
CG706-1000
0.312
1.000
CG706-1500
0.312
1.500
RR8-625
0.125
0.625
RR16-1000
0.250
1.000
RR17
0.265
6.000
RR24
0.375
8.000
RR32-2500
0.500
2.500
RR64
1.00
8.000
SINTERED ALNICO
8 DISC MAGNETS
Part No.
A
B
S8D1606
0.250
0.100
S8D1616
0.250
0.250
S8D2408
0.375
0.125
S8D2409
0.375
0.144
S8D2412
0.375
0.188
S8D2416
0.375
0.250
S8D3206
0.500
0.100
S8D3212
0.500
0.188
S8D3215
0.500
0.240
S8D3232
0.500
0.500
S8D4010
0.625
0.150
S8D4016
0.625
0.250
S8D4810
0.750
0.160
S8D4816
0.750
0.250
S8D6406
1.000
0.100
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ALNICO
R
E
C
T
A
N
G
U
L
A
R
B
M
A
C
Just a few of the huge variety we have in
stock. Call us if the size you need is not
shown here.
ALNICO
5 RECTANGULAR MAGNETS
Part No.
A
S5SB432
Alnico 5 rectangular magnets should have
lengths long in comparison to their cross
sectional dimensions in order to avoid self
demagnetization - a ratio of 5 to 1 is best. Any
lengths can be cut to your requirements.
Tolerances are the greater of +.015 or 2% of the
dimension.
0.062
B
C
0.062
0.500
SB8-4
0.125
0.125
4.000
RB832-1000
0.125
0.500
1.000
SB16-1000
0.250
0.250
1.000
SB16-1250
0.250
0.250
1.250
SB16
0.250
0.250
6.000
RB3264
0.500
1.000
6.000
SB32
0.500
0.500
6.000
SB64
1.000
1.000
6.000
B
M
A
C
SINTERED ALNICO
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8 RECTANGULAR MAGNETS
Part No.
A
B
C
S8RB816
0.125
0.250
0.500
S8SB0848
0.125
0.125
0.750
Sintered Alnico 8 bars are more resistant to
demagnetization than the Alnico 5 types, and
are therefore more stable. Like the Alnico 5
material, Alnico 8 has excellent temperature
stability and can be used to 1,000 degrees
Fahrenheit!
NdFeB
D I S C S
M
ID
OD
&
R I N G S
M
D
T
T
Power Packed Round Magnets. Amazing
strength in a small size.
The first two digits of the part number
represent the grade of the material. The
higher the grade, the stronger the material.
Shown here are some of the sizes that we carry in
stock. We actually carry a wider variety in stock,
many of which are used for more technical applications. These are available up to 4" in diameter.
Unlike most other materials, Neodymiums will rust
in humid environments, and if exposed to such
environments should be somehow protected. This
can be done by painting, oiling the surfaces, or
plating. If you foresee any problems, please ask us.
We are able to plate these materials and to apply a
variety of other corrosion resistant coatings.
Any size can be machined to your exact
specifications.
RING MAGNETS
Part No.
OD
ID
T
24NEG240804
0.375
0.125
0.060
DISC MAGNETS
DISC MAGNETS
Part No.
Grade
D
T
Part No.
Grade
D
T
35DNE0604-NI
35
0.100
0.060
30DNE2416-NI
30
0.375
0.250
30DNE0606-NI
30
0.100
0.100
30DNE3204-NI
30
0.500
0.060
35DNE0802
35
0.138
0.040
27DNE3208
27
0.500
0.125
35DNE0802-NI
35
0.138
0.040
27DNE3213
27
0.500
0.200
35DNE0905
35
0.138
0.077
27DNE3216
27
0.500
0.250
35DNE1002
35
0.157
0.040
24DNE3224
24
0.500
0.375
35DNE1005
35
0.157
0.077
27DNE3232
27
0.500
0.500
30DNE1606
30
0.250
0.100
35DNE4824
35
0.750
0.375
28DNE1608
28
0.250
0.125
35DNE4824-NI
35
0.750
0.375
28DNE1613
28
0.250
0.200
35DNE5624
35
0.875
0.375
35DNE1616
35
0.250
0.250
35DNE5624-NI
35
0.875
0.375
35DNE1616-NI
35
0.250
0.250
27DNE5664
27
0.875
1.000
30DNE1632-NI
30
0.250
0.500
30DNE6406-NI
30
1.000
0.100
24DNE2016
24
0.312
0.250
35DNE6416
35
1.000
0.250
24DNE2404
24
0.375
0.060
35DNE6416-NI
35
1.000
0.250
28DNE2404
28
0.375
0.060
28DNE6424
28
1.000
0.375
30DNE2404-NI
30
0.375
0.060
35DNE6424
35
1.000
0.375
24DNE2406
24
0.375
0.100
24DNE6432
24
1.000
0.500
27DNE2412
27
0.375
0.187
27DNE6432
27
1.000
0.500
30DNE2412
30
0.375
0.187
27DNE6448
27
1.000
0.750
27DNE2413
27
0.375
0.200
35DNE6448
35
1.000
0.750
27DNE2416
27
0.375
0.250
35DNE12832
35
2.000
0.500
Note: Part Numbers
ending with ‘NI’ are
nickel plated.
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NdFeB
R
E
C
T
A
N
G
U
L
A
R
The Most Powerful Magnets Available Today! These
rectangular Neodymium magnets pack a tremendous
punch.
T
W
The first two digits of the part number
represent the grade of the material. The higher the
grade, the stronger the material.
Shown here are a few of the sizes that we carry in stock.
We actually have a very large variety of sizes, and grades up
to 48, including many temperature compensated grades.
Unlike most other materials, Neodymiums will rust in
humid environments, and if exposed to such environments
should be somehow protected. This can be done by
painting, oiling the surfaces or plating. If you foresee any
problems, please ask us. We are able to plate these materials
and to apply a variety of other corrosion resistant coatings.
We can machine almost any size and shape to your
specifications if these don’t fit.
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M
L
Part No.
L
W
T
35NE111111
0.175
0.175
0.175
35NE501212
0.195
0.790
0.195
30NE161606
0.250
0.250
0.100
35NE209620
0.305
1.500
0.305
35NE642424
0.375
1.000
0.375
30NE323232
0.500
0.500
0.500
35NE646432
1.000
1.000
0.500
35NE2812832
2.000
2.000
0.500
35NE2812864
2.000
2.000
1.000
SmCo
D
Part No.
D
T
Part No.
D
T
18DRE0606
0.100
0.100
18DRE2008
0.312
0.125
18DRE0707
0.118
0.118
18DRE2404
0.375
0.060
18DRE0803
0.120
0.040
18DRE2408
0.375
0.125
18DRE0903
0.138
0.050
18DRE2416
0.375
0.250
18DRE1004
0.156
0.060
18DRE2424
0.375
0.375
18DRE1204
0.187
0.060
18DRE3204
0.500
0.060
18DRE1303
0.200
0.046
18DRE3208
0.500
0.125
18DRE1304
0.200
0.060
18DRE3212
0.500
0.187
18DRE1604
0.250
0.060
18DRE3216
0.500
0.250
18DRE1606
0.250
0.100
18DRE4008
0.625
0.125
18DRE1608
0.250
0.125
18DRE4816
0.750
0.250
18DRE1613
0.250
0.200
18DRE4824
0.750
0.375
18DRE1616
0.250
0.250
18DRE12832
2.000
0.500
M
D
T
I
S
C
S
Powerful, temperature
stable, and won’t rust.
Extremely powerful, all Rare Earth magnets
should be handled carefully to avoid injury.
Samarium Cobalts are very brittle, and will chip
and shatter easily if allowed to drop or snap
together. Use these magnets when space is a
limiting factor, high magnetic strength is
required, or where temperatures are expected
to exceed about 300 degrees Fahrenheit.
The first two digits of the Part
Number represent the “grade” of the material.
The higher the grade, the higher the energy
available from the magnet. We have available
Samarium grades up to 32 in block shapes,
though these are used mainly for more technical applications and are therefore not shown
here. Please call us for more information on
these.
Our rectangular Samarium Cobalt Rare Earth
Magnets are not shown in this catalog. Many
other standard sizes are available. Please call us
with your requirements!
Please remember, we have a full machine
shop and are able to custom machine any
magnet material to virtually any shape,
size, and tolerance.
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A L O O K AT D I F F E R E N T
MAGNETIZING PATTERNS
Diametrical
Radial through
arc segment
Radial
Parallel to lengeth
Parallel to
thickness
Multiple pole
Different Magnetizing Patterns Give Different Results
Except for the regular Flexible and Ceramic 1 materials, all magnet materials
are “pre-oriented” and can only be magnetized in a particular direction.
Standard (or “conventional”) magnetization is straight through the orientation direction,
and produces one North pole and one South pole. The Rare Earth magnets are extremely
difficult to magnetize in non-standard ways. However, the Flexible and Ceramic types
can be magnetized in many non-standard ways to give special results.
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MAGNET TERMINOLGY
&
Magnet “strength” (symbol B) is measured in
Gauss (symbol G). The maximum magnetic flux
density available from a magnet is given the
special symbol Br. This is rarely possible, and
very difficult, to achieve in practical applications.
The flux density actually achieved in practice can
be changed by creating a “magnetic circuit”
which might involve one or more magnets
and some steel components. You can measure
the flux density emanating from a magnet
using a Gaussmeter.
MAGNET MATERIAL CHARACTERISTICS
Neodymium
24
27
27H
28
28UH
30
30H
30SH
32
32SH
33SH
35
35H
37
39H
40
42H
45
Br
(Gauss)
9800
10500
10600
10800
10900
11000
11200
11200
11600
11500
11700
12300
12100
12400
12700
12900
13300
13500
Hc
(Oersted)
7500
10000
10100
10100
10400
10600
10700
10700
10800
11000
11100
11300
11600
11800
12200
12400
12800
11700
BHmax
(MGOe)
24
26
27
28
28
30
30
30
32
32
33
35
35
37
39
40
42
45
** Max Oper
Temp °F/°C
176/80
300/149
300/149
300/149
380/193
300/149
300/149
350/177
300/149
350/177
350/177
300/149
300/149
300/149
300/149
260/127
240/116
250/121
Relative
Cost by Wt
60
70
80
70
80
70
80
90
70
90
90
70
80
80
90
90
100
90
Other Neodymium
Bonded Nd (B10)
6800
5780
10.0
300/149
40
Samarium Cobalt
18
22
26
26HS
28
32H
8600
9500
10500
10700
10700
11500
7200
8600
9200
9800
10300
10600
18
22
26
27
28
32
500/260
662/350
662/350
716/380
716/380
662/350
100
110
120
130
130
140
12500
8300
6600
10800
7000
640
1650
550
600
1900
5.50
5.50
1.40
3.75
5.00
1004/540
1004/540
1004/540
1004/540
1004/540
15
15
8
10
10
2200
3950
3900
1900
2400
3200
1.05
3.60
3.50
896/480
896/480
896/480
2
3
3
1600
2200
2450
2650
1370
2000
2200
2200
0.60
1.10
1.40
1.60
212/100
212/100
212/100
212/100
1
2
2.5
3
KEY
CHARACTERISTICS
Resistance to demagnetization
(symbol H) is measured in Oersteds
(symbol Oe).
Maximum energy available from a
magnet (symbol BHmax) is measured
in Gauss Oersteds (in practice,
millions of Gauss Oersteds, therefore
the symbol MGOe, M for million)
The table summarizes some of the
key characteristics of our magnet
materials. There are actually many
other important characteristics, but
these are normally important in more
technical applications. Please consult
our engineering department for more
information.
** These maximum operating
temperatures apply under certain
conditions and are for reference
only.
If your application will approach
these temperatures, please consult
with our engineers.
Alnico
5 Cast
8 Cast
2 Sintered
5 Sintered
8 Sintered
Ceramic
1
5
8
Flexible
Regular Flex
HF1
HF2
HF3
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SECTION 2 : MAGNETS FOR THE
OFFICE AND SHOP
Magnetic Picture Hangers & Coat Hooks
2-2
Magnetic Clips and Holders
2-3
Magnetic Map Holders and Tacks
2-4
Pocket Magnets
2-5
Magnetic Labeling Systems
2-6
Rectangular Holding Magnets
2-7
Parts Lifting Magnets
2-9
Round Holding Magnets
2-10
Magnetic Sweepers
2-11
Electromagnets
2-12
Magnetic Catches
2-13
At the office, warehouse, shop, and home, these magnetic devices
help hang, organize, decorate, indicate, hold, transfer, and clean.
Elegant solutions to a variety of holding, hanging, transfering, and
display problems, magnetic devices give years of quiet, active, and
energy free service. A selection of our small round electromagnets
is also shown in this section. For more information on other
electromagnets available, please see our “Magnets for Material
Handling” catalog.
C
PICTURE HANGERS
&
O
K
A
T
H
O
O
S
Magnetic Picture Hangers
PH-2 2” x 3”
2 lbs capacity
PH-5 2” x 6”
5 lbs capacity
A quick solution for decorating metal walls.
Designed for hanging pictures, certificates, maps,
and calenders to steel walls, partitions, filing
cabinets or lockers. No need to drill holes, these
permanently magnetized rubber backed picture
hangers protect the finish on your walls. No
preparation needed, simply place the hanger on
any steel surface and hang your picture.
PH-10 4” x 6”
10 lbs capacity
PH-15 6” x 6”
15 lbs capacity
PH-25 6” x 9”
25 lbs capacity
Magnetic Coat Hooks
HB-5 4.25” x 4”
5 lbs capacity
Coat hooks for those steel walls or filing cabinets.
Again, no preparation or tools needed simply place the magnetic hook on a steel surface
and you’re ready to go.
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CLIPS
H
O
L
D
&
E
R
S
Magnaclip
Part No. #10
This neat, satin finished magnetic clip attaches to any
flat steel surface to hold notes, schedules, records,
charts, etc. 2-3/8" high x 1- 7/8" wide.
Heavy Duty Magnetic
Bulldog Clip
Hang Them Where They'll be Seen, Not Forgotten!
Part No. PC83
This clip holds loads of paperwork in warehouses, offices,
shops and shipping areas. Move orders, process sheets,
job cards, and other paperwork easily. Powerfully attaches
to any steel surface.
The Grabbit
Holds paper clips, pins, tacks.
Neat and Easy to reach.
Part No. GRABBIT
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These decorative little wonders will help keep your desk
organized. No more reaching into a box or drawer. The
4" diameter x 1-3/8" high magnetic saucer holds all
manner of clips, pins, tacks, nails, and screws within easy
reach. Available in bright green, blue, orange, and red,
these plastic encased grabbers look at home on your desk
and on the shop floor.
MAP HOLDERS
T
A
C
K
S
SA
LE
S
&
M
FG
.C
O
.
&
MH1001
Low Cost Powerful Magnets. Hold multiple
maps, charts, blueprints, or other heavy sheets
to metal walls. Any of the big ones will stay
up!
MH2001
Part Number MH2001
Size: 1-1/4" diameter x 1/4" high
Colors: white is standard, other colors on request.
The answer to blueprint or other large chart
holding problems. No more adhesive tapes or
other halfway solutions to hanging the big
ones on steel walls.
Encased in a clean, decorative, plastic shell, will not
mar or damage charts or walls.
Your logo or sales message can be imprinted on
these magnets. Use as giveaways that will be used
day in and day out, not tossed in a drawer and
forgotten. They’ll be in sight of your customer all
the time.
Part Number MH1001
Size: 2" x 1" x 1/2"
Colors: white is standard, other colors on request.
If lighter duty is what you need, use this
memo holder magnet.
Holds up memos and notes no problem. Ideal as an
inexpensive giveaway when imprinted with your
logo.
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POCKET
M
A
G
N
E
T
S
Magnetic Retrievers and Testers
Ideal for testing for ferrous metals, picking up
small parts, holding screws, retrieving fallen
parts, and to use as giveaways that won’t be
forgotten.
Model HEX-112
1-3/4" long by 9/16" diameter
in a hexagonal plastic case,
similar to the PM-11 except in a
bigger diameter. Can be
imprinted with your logo or
sales message.
Model HEX9-208
A more powerful version of the
HEX-112, 11/16" diameter by
2-1/2 long.
Flexible Magnetic Pick
Up Tool
Model TS4-18F
18" long x 5/16" in diameter,
this will help you retrieve that lost
screw or other ferrous part which
falls in a hard to reach place. With
the stiffening rod in place, it
becomes rigid so you can point
and pick. With the stiffening rod
removed, it be-comes flexible, so
you can reach around corners.
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Model PM-10
2-1/2" long metallic magnetic
tube, strongly magnetized at
the tip, and provided with
a keychain for easy storage.
Model 385
Pencil type magnet with
a pocket clip.
Telescoping Magnet
Model 4T
Chrome plated, this handy
little magnetic tool
telescopes up to a 17" length
from just 5-1/4"
Model PM-11
Similar to the PM-10, except
in a hexagonal black plastic
casing which can be imprinted
with your logo or sales
message.
MAGNETIC L ABELING
S
Y
S
T
E
M
S
Magnetic Labeling Systems
All Magnetic Identification Holders
Simply slip in our specially die cut cards into these 100% magnetic
holders and you have an instant label that you can move around
with your product. Can be bought in roll form (cuts easily with
scissors or paper cutter), or cut to length.
AG
ET
C
I
PR
Re-use the magnet when the product label is no longer required by
simply removing the obsolete card and inserting a new card.
Part No.
A
B
C
03011
0.485
0.370
0.165
06211
0.975
0.840
0.125
09411
1.850
1.625
0.130
B
C
A
5-16470F
5-16470 F
Flex-O-Matic Label Holders
Part No.
Width
Length
Great for warehouses!
30-104
0.750”
1.250”
Flat magnetic holders are a must in any warehouse. Adhere your
inventory labels to the non magnetic side of the label holder, and
you have a magnetic label that can be moved around with the
product. No more messy tapes on shelving.
30-112
0.750”
1.750“
39-202
1.000”
2.125“
39-308
1.000”
3.500“
39-400
1.000”
4.000”
39-500
1.000”
5.000”
Excellent for any application where labelling information requires
frequent and instant change, such as in drug stores, pharmacies,
labs, warehouses, sample rooms and others.
Standard thickness of 1/16" gives plenty of magnetic power.
Standard packaging is 1,000 pieces per box. If your label is a different size, please contact us - we can quickly make almost any non
standard label holder.
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R E C TA N G U L A R H O L D I N G
M
A
G
N
E
T
S
Rectangular Holding Magnets
Powerful holding magnets with up
to 225 pounds of pull.
TS-4
70 Pound Power Magnet
Weighs just one pound!
Just 1-3/4” square by 1-1/2” high, this magnet
delivers pull through it’s two 1/4’ high pole
shoes. Housed in an aluminum block with a 1/420 tapped hole 1/2” deep for easy fastening.
TS-3, 35 Pounds Pulling Power
From a 4 ounce powerhouse
Very economical, this magnet gives 35 pounds
pull when in contact with a flat, machined steel
plate 1/2" thick. Cadmium plated to resist rust,
with two 3/16" diameter holes for easy fastening.
MO-81, 45 Pounds Pull
Provided with two 3/16" diameter holes for fastening, this 2" x 1" x 5/8" magnet delivers 45
pounds of holding force.
Size: 2-3/4" long x 1-3/16" wide x 1/2" high.
TS-5, 225 Pounds Pull
The “Fishing” Magnet
Use this to fish around for lost objects in the bottom
of the tank. 225 pounds pull when tested on a flat,
machined steel plate, 1/2" thick. Painted to resist
rust, includes an eyebolt to attach to a rope or chain.
Size: 4-3/4" long x 1-7/8" wide x 2-1/2" high.
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R E C TA N G U L A R H O L D I N G
M
Part No.
A
B
C
hole
dia.
pull
MO-70SV
0.812
1.000
0.312
0.187
8 lb
MO-71SV
0.812
1.000
0.312
0.080*
8 lbs
MO-70S
0.812
1.000
0.312
0.187
5 lbs
MO-70S2V
0.812
1.000
0.546
0.187
16 lbs
MO-70V
0.875
1.000
0.250
O.125
7 lbs
MO-70
0.875
1.000
0.250
0.125
5 lbs
MO-70-1
0.875
1.000
0.250
0.187
5 lbs
MO-70-2
0.875
1.000
0.250
-
5 lbs
A
G
N
E
T
S
* dimples on steel plates
A
MO-70SV
MO-71SV
MO-70S
C
Inexpensive Rectangular
Holding Magnets
Strong Pull at Low Cost
Constructed of a magnet embedded in a steel
channel, or a magnet sandwiched between two
steel plates, these magnets provide strong pull
for their sizes and are an excellent value for your
holding magnet dollar.
B
A
Most of these come with mounting holes for
attachment to your product.
MO-70S2V
Remember that pull listed here is tested on a flat,
machined steel plate, 1/2" thick. If the surface to
which the magnet is holding is rough, rusty, or
painted, the holding force may be substantially
reduced. For critical applications build in a safety
factor of two to three.
C
B
A
MO-70V
MO-70
MO-70-1
MO-70-2
C
B
hole dia.
0.160”
Typical applications: latching or holding
magnets for doors, cabinets, fixtures, and
small tools.
MO80E
6 lbs pull
2.625”
0.312”
2”
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0.937”
Total Magnetic Solutions
PA R T S L I F T I N G
M
A
G
N
E
T
S
Pick Up and Transfer Small Parts Using Magnet
Power. Magnets that pick up and drop off.
Pick up small parts from bins, transfer them to
other storage locations, pull the handle to drop
them off!
Standards in the industry, these magnets have been
proving themselves for decades. Make light work of small
parts lifting and moving. Prevents injuries to hands.
Models 71 and 72 good for handling small parts, such as
nuts, bolts, nails, screws, etc. Other models suited to
lifting heavier and larger items, such as plates, large bolts,
etc. Use the chart to determine the most appropriate size
for your application.
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Part No.
Weight
Size
Lift(lbs)
71
2.8 lbs
4.750 x 1.625x 9.250
1 to 2
72
4.5 lbs
4.750 x 3.125 x 9.250
3 to 5
74
8.0 lbs
4.750 x 6.250 x 9.250
up to 8
76
11.0 lbs
4.750 x 8.500 x 9.750
up to 10
78
15.0 lbs
4.750 x 11.25 x 9.750
up tp 13
RELEASE PARTS BY PULLING ‘T’ HANDLE.
ROUND HOLDING
M
Part No.
pull (lbs)
Diameter
Hole Size
Thickness
RB-20
5
1.200
0.125
0.187
RB-30
9
1.437
0.187
0.275
RB-50
25
2.050
0.187
0.315
RB-70
60
2.625
0.250
0.375
RB-80
80
3.187
0.281
0.440
RB-90
130
3.880
0.375
0.515
RB-100
190
4.910
0.500
0.530
A
G
N
E
T
S
Round Holding Magnets
Magnetic Cups hold up to
190 pounds!
Constructed of a steel cup with a ring magnet
assembled inside, these round magnetic cups
have a mounting hole provided for attachment.
The magnet inside the cup has an inside
diameter which is larger than the diameter of the hole
in the cup, so there’s room for a screw head.
Like all other pull ratings, these are tested on a 1/2"
thick, flat, machined steel plate. Use appropriate safety
factors. For any application that is critical, we
recommend a safety factor of two to three.
steel cup
hole for
attachment
Typical applications: Lifting, holding, or positioning
indicators, lamps, inspection equipment, or antenna
mounts. Can be used on machinery, vehicles, or other
metal surfaces.
magnet
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MAGNETIC
S
W
E
E
P
E
R
S
Part No.
Sweeping
width
Overall
width
Weight
MS24
24“
30”
18lbs
MS36
36”
42”
21lbs
SM1-24
24”
31”
16lbs
SM1-36
36”
42”
19lbs
Magnetic Hand Sweepers
A problem sweeping up nails, tacks, pins,
or other ferrous materials? Clean up with
magnetic sweepers.
Light duty maneuverability
Sturdy welded construction
Release feature
Quick payback
Easy does it with these light duty sweepers.
Easy to use with one hand, their large 6"
diameter x 1/4" wide wheels roll easily over
uneven surfaces. Great for tramp metal pickup
from roofs, construction sites, aisles, or any
area where maneuverability and light weight
are important considerations.
Light weight and compactness make this
little magnetic broom the perfect
companion for one of our larger
sweepers. With it, you'll be able to get at
all those hard to clean areas under
benches and bins, in narrow aisles, and
make a light job of tank cleaning. Fits
standard broom handle (not included).
The MS series incorporate a release feature:
just pull the “T” handle at the top to release
tramp metal picked up by the magnet. The SM
series feature an adjustable sweeping height.
For a more complete listing of magnetic
sweepers and other cleaning and separating
magnets, please see our “Magnets for
Material Handling” catalog.
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Part No.
Sweeping
width
Overall
width
Weight
BM1-14
14”
14”
4.5lbs
E L E C T R O M A G N E T S
B
A
E*
C
D
E
Small Round Electromagnets
With up to 600 pounds pull
Power packed electromagnets operate
on 12 Volts DC
Where permanent magnets don’t have
the pull you need, or when a load must
be picked up and released many times,
perhaps automatically, an electromagnet will do the trick.
For a complete list of our electromagnets,
please see our “Magnets for Material
Handling” catalog.
Rectifiers are necessary if used with AC
power sources, or they may be operated
with 12 Volt batteries - see the wattage
ratings for each magnet to determine the
size of the battery required.
The size and location of the mounting
holes shown are standard, but they can be
provided with special hole patterns if
required. Leads are normally located on the
sides of the magnets. Again, these can be
located elsewhere for special applications.
These electromagnets should only be used
where the entire surface is in complete
contact with the surface of the load. Load
surface should be smooth and flat. Holding
values have already been de-rated by 50%
for safety. For critical applications, you may
need to apply a further safety factor.
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Thread
Location
Diameter
Height
Thread
Depth
Of Leads
A
B
C
D
E
EM-R75
0.750
1.250
10-32
0.375
0.187
1.5
12
1.7 oz
EM-R1
1.000
1.250
10-32
0.375
0.187
4.5
20
2.6 oz
EM-R1A
1.000
0.718
10-32
0.375
0.125*
1
14
1.9 oz
EM-R125
1.250
1.250
1/4-20
0.375
0.250
4.5
40
4.2 oz
EM-R2
2.000
1.625
1/4-20
0.500
0.250
5.2
200
1 lb
EM-R3
3.000
2.000
2-1/4-20
0.500
0.625
12
450
3.25 lbs
EM-R4
4.000
3.250
3/8-16
0.625
0.375*
15
750
9 lbs
EM-R6B
6.000
1.250
2-1/4-20
0.625
0.875*
7.8
600
8 lbs
Part No.
Watts
Pull
Weight
(lbs)
CYLINDRICAL
C
A
T
C
H
E
S
Easy to install, designed for wood
furniture.
Cylinder type magnetic catches encased in a ribbed
plastic case. To install, drill a hole slightly smaller than the
diameter (dimension A) of the catch, and simply tap the catch
into it. The exact diameter of the hole required will vary
according to the hardness of the material the catch is pressed
into - the softer the material, the smaller the hole.
C
D
B
Strike plates for these catches are sold separately. Type W Strike
Plates have a countersunk hole for attachment, type Z Strike
Plates come with a nail already attached, to that they just need
to be tapped into place. Standard Strike Plates are zinc finished.
Also available with a bronzed finish.
A
See page 2-17 for Strike Plates.
Catch
Strike Plate
Part No.
Color
17102
Black
17103
Brown
17110
White
17112
Brown
17120
White
17121
Black
17122
Brown
Pull
2 lbs
A
0.375
B
0.315
C
0.413
D
0.354
Part No.
Type W: 25412
Type Z: 25312
3 lbs
0.375
0.315
0.610
0.543
4 lbs
0.375
0.315
0.590
0.543
Type W: 25412
Type Z: 25312
Type W: 25412
Type Z: 25312
17140
White
17141
Black
17142
Brown
9 lbs
0.550
0.433
0.600
0.550
Type W: 55410
Type Z: 55310
17160
White
17161
Black
13 lbs
17162
Brown
0.625
0.532
0.720
0.670
Type W: 25420
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SOLID CLIP
C
A
T
C
H
E
S
Easy Installation, designed for metal and plastic
furniture.
These catches can be used on furniture manufactured
from sheet metal or plastic or laminate sheeting. They
can be installed into very narrow door jambs.
Installation is easy and requires no screws. The catches clip
into an opening which is height "L" shown in the charts
below. (Adjustments to this dimension may be required for
soft woods or to take account of burrs on the opening
edges.) Great for mass produced items which require fast
assembly.
Solid Clip Series
Made of an impact resistant polystyrene body with an
internal spring to absorb shocks and to push the magnetic
poles forward. Standard color is white, (Part Number
21305 is also available in black).
All Strike Plates sold seperately. See page 2-17 for Strike
Plates.
Catch
Strike Plate
Part No.
Pull
A
B
C
E
F
M
L
Part No.
21103
4 lbs
0.94
0.37
0.47
0.59
0.43
0.31
0.81
25602
21305
8 lbs
1.55
0.39
0.47
0.85
0.43
0.31
1.38
25602
21510
20 lbs
2.52
0.39
0.47
1.69
0.52
0.45
2.24
25610
M
F
E
A
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B
Total Magnetic Solutions
SPRING CLIP
C
A
T
C
H
E
S
Easy Installation, designed for metal and
plastic furniture.
These catches can be used on furniture manufactured
from sheet metal or plastic or laminate sheeting. They
can be installed into very narrow door jambs.
Installation is easy and requires no screws. The catches clip
into an opening which is height "L" shown in the charts
below. (Adjustments to this dimension may be required for
soft woods or to take account of burrs on the opening
edges.) Great for mass produced items which require fast
assembly.
Spring Clip Series
The flexible spring clips form an integral part of the catch design.
The Spring Clip series allows greater variability in the size of the
opening made for the catch, with the clips taking up the slack.
Standard color is white, (Part Number 21715 is black).
All Strike Plates sold seperately. See page 2-17 for Strike
Plates.
Catch
Strike Plate
Part No.
Pull
A
B
C
E
F
M
L
Part No.
21703
4 lbs
1.00
0.35
0.47
0.51
0.43
0.31
0.51
25602
21707
8 lbs
1.55
0.39
0.47
0.83
0.43
0.31
1.33
25602
21715
30 lbs
2.13
0.50
0.63
1.93
0.57
0.42
2.05
25610
M
F
A
E
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B
Total Magnetic Solutions
C
ECONOMY
C
A
T
C
H
E
S
C
Lots of holding power, great
values.
D
All of these catches have floating magnetic
poles for take up of any play in assembly.
Simple designs, easy attachment, and strong
pull make these magnetic catches value buys.
E
A
Install using 2 screws through the slotted holes
in the catches. The Heavy Duty series can be
used on large cupboard doors.
B
Strike plates are bronze or zinc plated.
Catch
Strike Plate
Part No.
Color
Pull
A
B
C
D
E
Part No.
11310
White
8 lbs
1.89
0.75
0.59
1.5
0.85
25602
11312
Brown
8 lbs
1.89
0.75
0.59
1.5
0.85
25602
Heavy Duty Type
Catch
Strike Plate
Part No.
Color
Pull
A
B
C
E
F
Part No.
11241
White
24 lbs
2.91
0.69
0.55
2.52
1.69
25610
11242
Brown
24 lbs
2.91
0.69
0.55
2.52
1.69
25610
C
D
A
B
E
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S T R I K E P L AT E S
F
O
R
C
A
T
C
H
E
S
Strike Plates Made to Measure for Our Magnetic Catches
Engineered for ease of installation and to get the maximum
pull out of the magnet.
Type Z strike plates come with an attached nail - just tap the plate into
the jamb. Other strike plates require either nails or screws for installation.
TYPE
Z
All holes are counter sunk.
A
B
C
A
Part No.
Type
25412
W
55410
Finish
A
B
C
Bronze or Zinc
0.472
0.098
0.098
W
Zinc
0.590
0.118
0.126
25420
W
Bronze or Zinc
0.787
0.157
0.126
25312
Z
Bronze or Zinc
0.472
0.098
0.453
55310
Z
Bronze or Zinc
0.590
0.118
0.453
Part No.
Type
A
B
C
D
25602
C
Bronze or Zinc
1.614
1.102
0.787
0.078
25610
C
Bronze or Zinc
2.598
2.126
0.472
0.078
B
C
strike plate
swivels on nail
TYPE
Finish
B
TYPE
A D
M AN U FA
All holes are counter sunk.
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C
C
W
SECTION 3 : MEASURING, LEARNING
AND FUN WITH MAGNETS
Gaussmeter to Measure Magnets
3-2
Magnetometers, Magnet Viewers, Pole Finders
3-3
Handbook for the “Technical Layperson”
3-4
This section features a few useful accessories for the magnet user. These
include a Gaussmeter for measuring the strength of magnetic fields, a
Magnetometer for measuring the relative strength of magnets, a unique
Magneview film to see magnetizing patterns, and a book useful for the
technically oriented layperson who wants to learn more about magnetism.
Magnets never cease to amaze. A basic and mysterious force of nature,
without which modern life as we know it would not be possible.
MAGNET MEASUREMENT
G
A
U
S
M
E
T
E
R
Model 410 Gaussmeter
Micropower Gaussmeter, Model 410-SC
Sophisticated device now more affordable
Use this handy and easy to use Gaussmeter to help you
understand, design, and test magnets and magnetic circuits.
DC
GE
20 KG RAN
FILTER
Useful for engineers, inventors, and quality control
departments, the GM-1 is completely portable and comes
with a soft case to carry the Gaussmeter and two Probes.
kG
The model 410 is a hand held gaussmeter designed for accurate
magnetic field measurements from 0.1 Gauss to 20 Kilogauss.
Most operating functions can be selected via the front panel
keypad with one or two keystrokes. The 410 displays in gauss or
Tesla, AC or DC magnetic field values with a 100mG resolution
on the 200 G range.
Gauss/
Tesla
Range
AC
6
5
4
Cal No.
Max
Reset
Max
Hold
Zero
Probe
0
Power
On
3
2
1
Power
Off
Filter
Relative
DC
Escape
9
8
7
Alarm
Point
Alarm
On/Off
Enter
+/-
.
re
LakeSho
eter
Operating Functions
ussm
410 Ga
Max. Hold - The largest field magnitude measured since the last
reset is displayed.
Filter - When the field being measured is noisy, the filter
function will average readings to produce a more stable display.
Alarm - An audible alarm is sounded and the display indicator
flashes when the measured field is higher than the keypad
entered alarm point.
Zero Probe - Used to eliminate probe offsets and small external
fields.
Relative Reading - When activated, measurements are referenced
to the keypad entered reading.
Autoranging - Automatically selects the appropriate range.
Memory Hold - On power down, the 410 stores in non volatile
memory, the complete configuration of the instrument,
including the calibration number and probe offset, making it
unnecessary in most cases to go through a set up procedure on
power up.
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Specifications
Display: LCD, 3-1/2 digits.
Resolution: 100mG (200 G range)
DC Accuracy: 2% of reading +0.1% full scale at 25 degrees Centigrade.
AC Accuracy: +5% of reading.
Frequency Response: 20Hz to 10Khz.
Ranges: +200 G, +2 KG, +20 KG.
Operating Temperature Range: 0 to 50 degrees Centigrade.
Instrument Temperature Coefficient: 0.05% of reading per degree Centigrade.
Instrument and Probe Temperature Coefficient: 0.1% of reading per degree Centigrade.
Weight: 1 lb.
Size: 7.6” x 3.9” x 1.7”
Power: 4 “AA” batteries (included). Battery life greater than 160 hours.
Ordering Information
Gaussmeter Part Number 410-SC (includes batteries, soft
case, and extension cable for use with probes).
Two standard probes are available: an axial probe (Part
Number MSA-410), which measures fields parallel to the axis
of the probe, and a transverse probe (Part Number MST410), which measures fields perpendicular to the axis of the
probe.
A specially designed hard case with foam padding is also
available. Part Number HC-410
MAGNET MEASUREMENT
V
LD
FIE
10
E
W
E
R
S
LEL WITH
PARAL
CL
0
10
20
20
Pocket Magnetometers
I
+
Pocket magnetometers allow you to check magnets fast and
inexpensively. They are useful in inspection, engineering,
laboratory and tool room.
Check for residual magnetism, polarity (a positive deflection
indicates
a North pole), and relative strength. Use as a “go, no-go” test for
magnets and magnetic devices. Particularly useful when large
numbers of magnets must be tested.
Models available:
#100 - with a -100 to +100 scale.
#50 - with a -50 to +50 scale.
Size: 2-1/2” diameter x 1-1/4 high. Weighs 3 ozs.
Magneview Paper
This unique film allows you to see the magnetization pattern on
your magnets. Poles are seen as dark areas bounded by light lines.
Use to reveal inconsistent magnetization, check for magnetization
patters.
Magnetic Viewer
The B-1022 Magnetic Viewer provides a fast, clean way to view
magnetization patterns, more sensitively than the Magneview Paper.
You can view recorded signals for head alignment, track placement,
and pulse definition on magnetic tape not possible with the Magneview
Paper, as well as patterns created by permanent magnets. Resolution is
200 digital B.P.I.
Part Number B-1022
Color: Green
Thickness: 0.006”
Part no.
size
MR1-G
4” X 4”
MR1-G09
9” X 9”
MR1-G12
12” X 12”
MR1-G1836 18” X 36”
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MAGNET MEASUREMENT
B
O
O
K
This 385 page volume, revised in 1986, is the result of a
lifetime of study of the permanent magnet.
The history of the magnet, its development, the comparison of different magnetic materials, sources of magnet
supply, applications of permanent magnets in every conceivable use from toys to the latest medical devices.
For the practicing engineer:
Measurement and Testing, Exact Design Methods, Circuit Effects,
Mechanical Considerations, Typical Circuits and Applications of
Magnets.
HOLD
CONVERT
SEPARATE
CONTROL
ELEVATE
CONVEY
For Inventors, a basic source book on costs, suppliers,
and types of permanent magnets.
For scientists, teachers and students, a definitive study. The
author - a teacher and practicing engineer- analyzes the worldwide uses of magnets industry by industry, practical applications
product by product, pointing out that there are over a billion
magnets in use - in telephones microphones, TV controls,
motors, solenoids, recording tape, switches, parts sorters,
thermostats, cardiac pumps, thermal measuring devices and
hundreds of other vital products of our age.
The text is straightforward, and easily understood by anyone
with a general technical background, but no specific background in magnets, metallurgy or electricity.
An invaluable reference work, the Permanent Magnet Design and
Application Handbook contains a complete glossary of terms, a full
bibliography, a table of magnetic properties of materials, an
International Index of Permanent Magnetic Materials and
Replacement Guide, and numerous charts and tables on other
aspects of permanent magnet technology.
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Total Magnetic Solutions
The book is profusely illustrated with diagrams, charts, and photographs. The author, Lester R. Moskowitz, served as president of
the Society of Magnetic Engineers, as Dean of Technology at
Spring Garden College in Philadelphia and as executive director of
the Permanent Magnet Users Association. This valuable reference
work can save you hundreds of dollars in design time!
Order by Part Number : BOOK
CERAMIC
R
I
N
G
S
&
A
R
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Total Magnetic Solutions
11248 PLAYA COURT
CULVER CITY, CALIFORNIA 90230
CALIFORNIA
(310) 391-7213
NATIONWIDE
(800) 421-6692
FAX
(310) 390-4357
E-MAIL
[email protected]
WEB
http://www.magnetsales.com