plastiform flexible bonded magnets properties

PLASTIFORM®

Flexible Bonded Magnets

p. 7.1 February 2003 Rev. B

PLASTIFORM DIVISION


PLASTIFORM® bonded magnets represent the culmination of years of research and devel-opment focused on enhancing the magnetic and physical properties of polymerized magnetmaterial.

Since their development in the mid-60s, bondedmagnet materials have evolved from low-energyand limited geometries into high-energymaterials of nearly unlimited versatility. Fromflexible rolls and sheets magnetized with densemulti-pole patterns, to intricate injection- andinsert-molded shapes, Arnold PLASTIFORM®

bonded magnets offer unprecedented design versatility and uncompromising quality.

In addition to the highest remanence andcoercivity properties available in the industry,Arnold PLASTIFORM® magnets offer superiorthermal characteristics, dimensional stability andsolvent resistance.

Because of their design versatility, exceptionalperformance and high quality, ArnoldPLASTIFORM® bonded magnets offer significantsystems savings over conventional magnets.

Arnold Engineering offers bonded ferrite andbonded rare earth materials to meet a widevariety of requirements for motor stators androtors, actuators, instrumentation, armatures anda diverse selection of holding magnets used inautomotive, medical, military and commercialapplications.

New products are continually being developed. If you don’t see here what you need or for moreinformation, application engineering assistanceand pricing, call your Arnold sales representative or the Plastiform Division.

Unprecedented designversatility with the highestremanence and coercivityproperties available


Energy product 1.4 MGOe flexible permanent magnet material

• Strong resistance to demagnetization

• Machinability permits simple and inexpensive shaping and assembly processing

• Flexibility permits ease of handling, fabricating and assembly

• Resilience prevents chipping, cracking or shattering

• Close dimensional and magnetic tolerances allow substantial cost reduction

• Adaptability to automated assembly and low reject rates provide economies of use

PLASTIFORM® Flexible Permanent MagnetMaterial, energy product 1.4 MGOe, hasa cured (vulcanized) nitrile rubber bindercontaining oriented barium ferritemagnet material. This product possessesa strong resistance to demagnetization,and is easily fabricated using standardtools such as knives, drills, lathes,punches, mills, grinding wheels, etc. Thismagnet product is manufactured in two types:

1013 is particularly suited for fabricatedparts, while 1030 is designed for use inpermanent magnet DC motors and otherapplications requiring a greater flexuralcapability.

Both types are available in rolls, sheets,strips or as fabricated parts, magnetizedor not magnetized.

PLASTIFORM® flexible magnet materialscombine physical and magneticproperties and offer the followingfeatures and benefits.

Flexibility and resiliencyDesign innovations and automatedmanufacturing techniques are morepractical using PLASTIFORM® magnetmaterial because it does not chip orshatter.

Ease of fabricationPLASTIFORM® flexible magnet materialsoffer inherently low tooling costs and canbe readily machined, cut, slit, punched,drilled or milled into simple or intricateshapes.

Multi-pole magnetizationPLASTIFORM® magnet pieces or strips areavailable with more than one pole oneach surface, offering increased designflexibility. Multi-pole magnetizationpermits greater control of flux density,allowing flux patterns to be held closer tothe magnet surface.

Conformability to applicationsurfacesBecause of their flexibility, and a combi-nation of hardness, tensile strength andelongation, these flexible magnets adaptto the shape of the surface to which theyare applied. In fractional horsepowermotor applications, this property ensuresa snug fit between magnet material andhousing, thereby reducing the air gap,minimizing reluctance and maximizingoperational efficiency.

Cost reductionGreater design latitude and more efficientproduction methods made possible bythe unique properties of PLASTIFORM®

magnets contribute to reduced costs inproduct development and production.

Superior magnetic and dimensionaltolerancesPLASTIFORM® magnets have a magnetictolerance of plus 6%, minus 2%.Thickness tolerances can be held towithin ±.003 inches*. In addition, thesesuperior magnetic and dimensional tolerances allow more exacting control of performance.

PLASTIFORM® QualityPLASTIFORM® is manufactured using up-to-date statistical methods anddocumented statistical data. Customerscan rely on the proven quality ofPLASTIFORM® bonded magnetic materialsfor a variety of applications.

*Premium tolerance

PLASTIFORM® 1013 and 1030 Magnet Material



Continuous strip capabilityThe flexibility of this material allows it tobe supplied in continuous strips. This isadvantageous to the DC motor manu-facturer both in terms of production costand performance. Motor strips can be cutprecisely to length, with all magneticpoles exhibiting precisely the samemagnetic properties. In DC motors, thiscondition enhances smooth motoroperation and minimizes brush wear.Continuous strip capability is also advantageous to the manufacturer whofabricates parts which may be used asautomated feed systems.

ApplicationsBecause they successfully combine highcoercive force and residual induction withflexibility and ease of fabrication,PLASTIFORM® magnets are now beingused in a wide range of electro-magneticcircuit and equipment applications.Typical applications include:

• Stators for fractional horsepowermotors

• Rotors for brushless DC motors• Reed relay actuation in switches,

keyboards, counters and sensors • Magnetic focusing systems for TV tubes• Multi-pole magnetic rotors for timer,

stepper and clock motors• High performance latches• Magnetic pick-ups for electronic ignition

and braking systems• Magnetic clutch in computer disc pack

drive• Snap-action devices for use as power

switch contacts

A primary reason for the material'sacceptance into these markets has beenits adaptability to automated handlingsystems.

The automated equipment used to insertPLASTIFORM® permanent magnets intofractional horsepower motor and alter-nator housings typically consists of thefollowing components:

1. The magnetizing fixture which is builtinto the inserter machine to magnetizethe magnet prior to insertion

2. A power unit designed to provide elec-trical energy to the magnetizing fixture

3. The inserter machine itself, consistingof an injector arm to push the materialinto a circular die cavity, and a plungerthat completes formation of themagnet material and inserts theformed part into the motor or alter-nator housing

The magnetizer-inserter equipmentshown at the top of the page illustratesthe principles of automated productionusing PLASTIFORM® magnets. Theseprinciples are easily applied to modernmanufacturing processes and aredesigned to save production time anddrastically reduce rejection rates withoutsacrificing performance. The magnetizer-inserter and other application equipmentcan be fabricated by a machine builder,or in the manufacturer's own toolingdepartment. Arnold’s ApplicationsEngineering Service is available to providethe technical assistance necessary to getsuch equipment built and into operation.

AvailabilityThe basic manufactured form is a roll ofsheet stock which can be easily fabri-cated into parts of the desired shape.

PLASTIFORM® permanent magnets arefabricated in accordance with customerspecification. The material can beproduced in virtually any size or shape,including continuous length strips. It is

available in either a magnetized ornonmagnetized state. The number ofpoles per surface and magnetizationpattern are determined by the applicationneeds of the customer.

For information on other ArnoldPLASTIFORM® magnet materials, refer tothe appropriate product informationsheets.

Sampling/prototyping/toolingSamples of PLASTIFORM® magnetmaterial 1030 for prototype evaluationcan be supplied for design feasibilitystudies in standard, unmagnetized 3"x24" strips. Such samples can bemachined, slit, punched or cut to thefinal part dimension. Magnetizedsamples and samples in non-standardsizes can be provided on a lot chargebasis. Requests for quotes on non-standard or magnetized sample partsshould be directed to your ArnoldEngineering sales representative.

Production toolingBlanking and cut-off dies can beproduced to meet quantity requirementsfor the final part dimension. Requests forquotes on engineering costs associatedwith tooling should be directed to yourArnold Engineering sales representativewith a print of the part to be fabricated.

PLASTIFORM® flexible magnets offer money-saving advantages in PM motor stator and brushlessmotor rotor applications through automated magnetizing and insertion equipment.



Arnold application engineeringservicesArnold Application Engineering Servicespersonnel are available for assistance in the following areas:

Application inquiries—provide answersto technical questions on magnet use forproposed applications.

Magnetization requirements—assist indefining requirements for productionmagnetizers, poling fixtures, andperipheral equipment in accordance withspecific application needs.

Magnetic optimization—providemagnetic circuit design suggestions toachieve optimum product performance.

Prototype testing evaluation—performtesting and evaluations of design,prototype and production parts in fullyequipped electrical laboratories.

A technical bulletin on prototyping formotors using PLASTIFORM® magnetmaterial is available on request.

*All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.Test Methods1 ASTM D-297 4 Arnold Test Method2 ASTM D-2240 (10 sec. delay) 5 ASTM D-2573 ASTM D-412 6 ASTM D-149

Typical Physical Properties @ 23°C (73°F)

Property Value* (Units)

1013 1030CGS/U.S. SI CGS/U.S. SI

MechanicalDensity1 0.134 lbs/in3 3.7 gm/cm3 0.134 lbs/in3 3.7 gm/cm3

Hardness2 55 Shore D 55 Shore D 55 Shore D 55 Shore DTensile Strength3 640 psi 400 N/cm2

Elongation3 18%Flexibility4 Pass – 180°

bending onmandrel equal to 7x samplethickness

ElectricalVolume Resistivity5

(50% R.H. ) 1010 ohm-cm 1010 ohm-cm 1010 ohm-cm 1010 ohm-cmDielectric Strength6

(50% R.H.) 250 volts/mil 10kV/mm 250 volts/mil 10kV/mm

ThermalThermal Coefficient of Thickness 9.8 x 10–5 18 x 10–5 9.8 x 10–5 18 x 10–5

Expansion (4% to 120%) in/in per °F cm/cm per °C in/in per °F cm/cm per °C

Maximum ContinuousOperating Temperature 250°F 120°C 250°F 120°C

*All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.1013 and 1030 are fabrication type and extra-flexible type respectively.Test Methods1 Pole-coil Hysteresigraph

Typical Magnetic Properties @ 23°C (73°F)


CGS/U.S. SI

Maximum Energy ProductBH-max 1.4 x MGOe 11.1 x 103 kJ/m3

Residual Induction1 (Br) 2450 Gauss 245 mT

Coercive Force1 (Hc) 2200 Oersteds 175 kA/m

Coercive Force, Intrinsic1 (Hci) 3000 Oersteds 239 kA/m

Recoil Permeability 1.04 1.04

Reversible TemperatureCoefficient of Induction (Br) -0.105% per °F -0.19% per °C

Reversible TemperatureCoefficient of Coercivity (Hci) 0.07% per °F 0.13% per °C

Peak Magnetizing Force Required 10000 Oersteds 800 kA/m *± .020 considered on an individual application basis.

Size ofMagnet Part Tolerances(inches) (inches)

Thickness Standard Premiumup to .060 ± .005 ± .002.061 – .200 ± .007 ± .003.201 – .300 ± .010 ± .005.301 – up ± .013

Widthup to 1.250 ± .019 ± .0121.251 – 1.949 ± .019 ± 1%over 1.950 ± 1% ± 1%

Lengthup to 1.200 ± .019 ± .0051.201 – 2.000 ± .019 ± .0102.001 – 4.000 ± 1% ± .5%4.001 – 13.000 ± 1% ± .030*13.001 – 20.000 ± 1% ± .05020.001 – up ± 1%

Typical TolerancesDesigners can consider the followingtolerances to be typical of productionparts:



Typical Demagnetization Curve @ 23°C (73°F)*

5000 4500 4000 3500 3000 2500 2000 1500 1000

1500

1000

2500

2000

500

0

500

-H (Oersteds)

B (

Gu

ass)

INTRINSIC

NORMAL

* All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.PLASTIFORM® 1.4Br 2450 GaussHc 2200 OerstedsHci 3250 OerstedsBH max 1.40 MGOe

* All values shown are typical and are not intended for speci-fication purposes. Specification values will be provided uponrequest.** Good—minor or no effect; up to 10% swell in thickness

Fair—moderate effect; 10-25% swell in thicknessPoor—severe effect; greater than 25% swell in thickness

Typical Chemical Resistance*(Nitrile Rubber Binder)

Chemical(7 days immersion @ RT) Performance**

Motor Oil GoodTransmission Oil GoodHydraulic Fluid GoodKerosene GoodJP-4 Fuel Fair Gasoline Fair Heptane Fair Antifreeze Good Clorox Good Turpentine Good Water Good Detergents Good Salt Spray Good Aromatic Hydrocarbons Poor(Benzene, Toluene, Xylene)Chlorinated Hydrocarbons Poor(Carbon Tetrachloride,Trichloroethylene)Ketones PoorAlcohols Fair Acids, Inorganic Poor(HCl, H2SO4)


Tech Tips—PLASTIFORM® 1030 Magnet Material

Prototyping for DC PM motors and brushless motors withPLASTIFORM® flexible permanent magnet material 1030

PLASTIFORM® Flexible Permanent Magnet Material 1030 consists of barium ferrite oriented in a cured(vulcanized) nitrile rubber binder. Combining the magnetic properties typical of barium ferrite withflexibility and excellent magnetic and dimensional tolerances, 1030 material provides a wide range ofbenefits in DC PM motor and brushless motor applications. When prototyping with a 1030 material,the following parameters determine if the magnet can be consistently inserted into a motor housingwith optimum performance results:

(1) Flexing required of the magnet (flexibility ratio)(2) Magnet strip length and length tolerances(3) Motor housing inner diameter tolerances

Determining flexibility ratioThe magnet material used in a motor housing must have enough flexibility to be inserted withoutbreaking. This capability is determined by the magnet material's flexibility ratio. The latter is calculatedby dividing the inner diameter of the motor housing by the thickness of the magnet.

The following chart suggests the magnet thicknesses that can be used in conjunction with variousmotor housing inner diameters based on flexibility ratio. For example, a ratio of 7 indicates that amagnet having a thickness range of .030" to .190" can be inserted into motor housing whose innerdiameter is at least 7 times greater than the magnet thickness. Further experimentation to determinethe practical ratio for a particular motor may be needed, depending upon the specific requirements ofthe motor (Figure A).

FlexibilityRatio

minimum inner diameter motor housingmaximum magnet thickness

Dhtm= =

Min. MotorMagnet HousingThickness InnerRange Ratio Diameter

.030" to .190" 7 .210" to 1.33"

.191" to .280" 8.5 1.63" to 2.38"

.281" to .375" 9.5 2.67" to 3.57"

Figure A—Determining magnet thickness

MagnetThickness

(tm)

HousingID

(Dh)



Determining magnet strip lengthBecause of their flexibility, PLASTIFORM® 1030 magnets adapt to the shape of the surface to whichthey are applied. In DC motor and brushless motor applications, this property permits a snug orcompression fit between magnet and motor housing without bonding or gluing. The result isminimization of the air gap, provided that the correct length of magnet strip has been used. Properstrip length may be calculated as follows:

Magnet strip length = Nominal inner diameter of motor housing minus the nominal magnet thicknesstimes π times design guide (K), i.e.;

SL = (Dh - tm)πK

After the nominal length has been calculated, insertion tests should be run to verify that the calculatedlength is correct or to determine that it needs to be modified. Then, two additional tests must bemade to confirm that the butt joint, where the two ends of the magnet strip meet after insertion,allows a proper fit between magnet and housing.

This testing should be carried out as follows:(A) Insert a magnet strip with the prescribed maximum thickness and maximum length into a motor

housing with minimum inner diameter.(B) Insert a magnet strip with the prescribed minimum thickness and minimum length into a motor

housing with maximum inner diameter.(C) Observe whether the following design goals have been met:

1. The magnet is in uniform contact with the inner diameter of the motor housing.2. The magnet will not move in the housing.

Figure B shows the typical butt joint variation with an ideal or typical strip length resulting in a “Y"configuration.

Magnet StripThickness DesignRange Ratio Guide (K)

.030" to .190" 7 1.02

.191" to .280" 8.5 1.01

.281" to .375" 9.5 1

Figure B—Typical Butt Joint Variation

Butt Joint(Maximum Strip Length)

Butt Joint(Minimum Strip Length)

Butt Joint(Typical Strip Length)

Butt Joint

Motor Housing



The importance of testing relative to proper magnet length stems from the fact that excessively longmagnet strips may create so much compression at the butt joint that the magnet material is pushedinto the air gap, possibly causing armature interference.

On the other hand, magnet strips that are too short could cause armature interference by movingaway from the inside wall of the housing. The use of strips of insufficient length may also contributeto axial movement.

The motor housing inner diameter tolerances must also be considered in determining the requiredmagnet strip length and thickness tolerances.

Magnet strip dimensional tolerancesClose thickness tolerances result in less magnetic flux variation in the air gap, leading to moreconsistent motor performance.

Close thickness and length tolerances also aid in producing the proper compression fit betweenmagnet and motor housing.

* Provided on request** Width is not generally considered to be a critical dimension in motor applications.Closer width tolerance can be supplied upon request.

Magnet Dimension Motor Grade Tolerance

Thicknessup to .060" ± .002".061" – .200" ± .003".201" – .300" ± .005".301" – up *

LengthUp to 1.200" ± .005"1.201" to 2.000" ± .010"2.001" to 4.000" ± .5%4.001" to 13.000" ± .030" (± .020" considered on an

individual application basis)13.001" to 20.000" ± .050"20.001" and up *

Width**Up to 1.250" ± .012"1.251" to 1.949" ± 1%1.950" and up ± 1%

Dimensional TolerancesPLASTIFORM® fabricated magnets are producedto the following dimensional tolerances:



Fabricating 1030 magnet samples1030 Sample material is available in standard sheets 3" wide x 24" long, in thicknesses of .030",.060", .090", .125", .156”, .186", .250", .312" and .375". Finished parts can be fabricated fromthese sheets in a machine shop using standard tools such as knives, guillotine cutters, band saws,drills, punches and grinding equipment.

The length of the finished magnet part should be cut from the web direction or the 24" lengthdimension of the sheet material (Figure C). It should not be cut from the cross-web direction or the 3"dimension.

In order to assure a proper fit, it is also recommended that the length dimension be cut over-sized,then ground to the previously determined tolerances. When grinding 1030 magnet material, a 50 gritopen-coat aluminum oxide or silicon carbide abrasive wheel works well, run at a surface speed ofapproximately 7,500 ft./min.

Figure C—Fabrication of flexible magnet prototype from sheet stock

Cross-Web

SheetStock

Finished Part

24"

Web Direction

3"



Inserting magnet samples into motor housingsA simple hand insertion tool can be made in a machine shop to provide uniform insertion of themagnet strip into the motor housing (Figure D).

The magnet strip is hand-loaded into the wide opening of the inserter or strip former. The inserter isthen placed on top of the motor housing. The curled magnet strip is pushed down the length of the inserter and into the motor housing by the plunger (Figure D). An arbor press can be used to aidthis procedure.

Arnold technical service assistanceArnold engineering and technical personnel are available to provide assistance in the following areas:

Application inquiries—supply answers to technical questions on magnet use for proposed applications.Magnetization requirements—assist in defining requirements for production magnetizers, polingfixtures, and peripheral equipment in accordance with specific application needs.Magnetic optimization—provide magnetic circuit design suggestions which will aid in achievementof optimum product performance.Prototype testing evaluation—perform testing and evaluation of design, prototype, and productionparts in fully equipped electrical laboratories.

For further assistance, call our applications engineering or customer service staff.

F 16

F4° to 5°

E

A

C

DC

B

A B

D

Hand Inserter

Strip Former

Plunger

A Minimum housing IDB Maximum housing ODC Magnet strip width + 1/16 in.D Hand inserter ODE Hand inserter heightF Cross-section view of hand inserter

A Minimum housing ID-.005 in.B A-(2 x maximum magnet thickness)C Distance from bottom of housing to top of magnetD Distance from top of magnet to top of hand inserter

Figure D—Magnet Insertion Tools


High energy level magnetic strip/sheet material

• 16 oz/in2 minimum holding force

• Easily cut with scissors or knife

• Holds and remains flexible at low temperatures

• Available in two standard thicknesses and in widths from 1/4 in. to 24 in.

• Custom slit widths on special quotation

PLASTIFORM® Magnetic Strip 1016 is aflexible bonded magnet which is madeusing a special process that orientsbarium ferrite crystals in a polymer binderduring manufacture. This orientationprocess yields a material with excellentmagnetic properties.

The high energy magnet material is thenpermanently magnetized with multiplenorth and south poles along its length,providing a minimum holding force of 16ounces per square inch (70 g/cm2).

The 0.020 in. and 0.030 in. products aremagnetized 18 ppi; the 0.055 in. productis magnetized 11 ppi. The thickermaterial has the greater reach out factor.The holding force of the 0.055 in. isgreater than that of the 0.030 in. inlarger air gaps. (See "Holding Force"graphs following.)

The strong holding power of thePLASTIFORM® Magnetic Strip 1016 allowsits use in relatively narrow widths whereit combines economy with exceptionalperformance capabilities. This holdingforce can be increased 30% by backingthe magnetic strip with 0.010 in. steel.

1016 Magnetic Strip/Sheeting can bebent, twisted and flexed without loss ofmagnetic energy. The product conformsreadily to irregular surfaces withoutcracking. It will not lose its magneticstrength when dropped or struck. TheMagnetic Strip/Sheeting is, indeed,permanently magnetic.

Temperature resistance1016 Magnetic Strip retains its flexibilityeven in cold weather. The productperforms well, indoors or out, in hot orcold climates. Extensive testing at temper-atures ranging from -40°F to 160°F(-40°C to 71°C) has documented thisbroad temperature performancecapability.

Magnetic holding force increases astemperature decreases and, conversely,will decrease as temperature increasesfrom 72°F (23°C) test temperature.

ApplicationThe magnet material is easily cut withscissors or a knife. Mounting surfacesshould be free of dirt, grease, oil andsolvent.

Clean, safe handling1016 material is specially coated toensure clean attachment. This coatingresists the external, physical conditionsthat might otherwise result in bondingbetween magnet and application surface.

Typical holding force without steelbackup

20

5

10

15

20

25

30

35

4 6 8 10 15 20

Air Gap in 0.001 in.

Ho

ldin

g F

orc

e in

oz/

in2

PLASTIFORM® 1016Magnetic Strip and Sheeting


PLASTIFORM® 1016 Magnetic Strip and Sheeting

DefinitionsSliding force is defined as the force(measured in oz/in2) required to moveone square inch of magnet, magneticallyattached to a polished steel plate, in adirection parallel to the steel plate.

Holding force is defined as the force inoz/in2 required to remove a one squareinch (1.13 inch diameter) steel disc in avertical direction from the magnetsurface.

*Steel used in magnetic circuit was SAE 1010-1020.

(a) 8 ppi 0.055 in. (non-standard)(b) 11 ppi 0.055 in.(c) 11 ppi 0.030 in. (non-standard)(d) 18 ppi 0.030 in.

Availability

Thickness: 0.030 in. (0.76 mm) (approximately 1/32 in.)0.055 in. (1.4 mm) (approximately 1/16 in.)0.020 in. (0.50 mm) (approximately 1/50 in.)—Requires special order

Width: 3/8 in., 1/2 in., 3/4 in. and 1 in. (9.52, 12.7, 19 and 25 mm) are standard widths. By special order, product is available in widths up to 24 in. for 0.030 in. and 0.055 in., and up to 21 in. for 0.020 in.

Length: Standard length is 100 feet (30.5 m). Special lengths are available on special quotation.

Magnetization: 0.020 in.–18 poles per inch of width (ppi)0.030 in.–18 poles per inch of width (ppi)0.055 in.–11 poles per inch of width (ppi)These thicknesses can be magnetized 18, 11 or 8 ppi, subject to special quotation.

Custom thickness of 0.090 in. suitably magnetized multipole is available on special quotation.

Custom magnetization is available on special quotation.

MagnetSteel

Sliding Force

F

Holding Force

FSteelMagnet

Physical and Magnetic Properties*

Magnetic Holding Force: 16 oz/in2 (70 g/cm2) to bare steel

Sliding Force: 8 oz/in2 (35 g/cm2) to polished steel

Temperature Range: -40°F to 160°F (-40°C to 71°C)

Flexibility: 0.030 in. (0.76 mm) thick – Bend around 1/8 in. (3.2 mm) diameter mandrel. 0.055 in. (1.4 mm) thick – Bend around 1/4 in. (6.3 mm) diameter mandrel.

Chemical Resistance:Weather ExcellentWater ExcellentOzone ExcellentDilute Acids GoodDilute Bases GoodOils and Common Solvents Poor

Shelf Life: 1 year from delivery date

Typical holding force with steelbackup* (0.010 in. steel)

20

5

10

15

20

25

30

35

4 6 8 10 15 20


Ho

ldin

g F

orc

e in

oz/

in2

a

b

c

d

* All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.


Energy product 1.6 MGOe flexible permanent magnet material

• Superior magnetic properties• Strong resistance to demagnetization• Machinability permits simple and inexpensive shaping and assembly processing• Flexibility permits ease of handling, fabricating and assembly• Resilience prevents chipping, cracking or shattering• Close dimensional and magnetic tolerances allow substantial cost reduction• Adaptability to automated assembly and low reject rates provide use economies

PLASTIFORM® Flexible Permanent MagnetMaterial, energy product 1.6 MGOe, hasa cured (vulcanized) nitrile rubber bindercontaining oriented barium ferritemagnet material. This product possessesa strong resistance to demagnetization,and is easily fabricated using standardtools such as knives, drills, lathes,punches, mills, grinding wheels, etc.

1033 is designed for use in permanentmagnet DC motors and other applica-tions requiring a greater magneticcapability. It is available in rolls, sheets,strips or as fabricated parts, magnetizedor not magnetized.

PLASTIFORM® flexible magnet materialscombine physical and magneticproperties and offer the followingfeatures and benefits.

Flexibility and resiliencyDesign innovations and automatedmanufacturing techniques are morepractical using PLASTIFORM® magnetmaterial because it does not chip orshatter.

Ease of fabricationPLASTIFORM® flexible magnet materialsoffer inherently low tooling costs andcan be readily machined, cut, slit,punched, drilled or milled into simple orintricate shapes.

Multi-pole magnetizationPLASTIFORM® magnet pieces or strips areavailable with more than one pole oneach surface, offering increased designflexibility. Multi-pole magnetizationpermits greater control of flux density,allowing flux patterns to be held closer tothe magnet surface.

Conformability to applicationsurfacesBecause of their flexibility, and a combi-nation of hardness, tensile strength andelongation, these flexible magnets adaptto the shape of the surface to which theyare applied. In fractional horsepowermotor applications, this property ensuresa snug fit between magnet material andhousing, thereby reducing the air gap,minimizing reluctance and maximizingoperational efficiency.

Cost reductionGreater design latitude and more efficientproduction methods made possible bythe unique properties of PLASTIFORM®

magnets contribute to reduced costs inproduct development and production.

Superior magnetic and dimensionaltolerancesPLASTIFORM® magnets have superiormagnetic properties with the energyproduct of 1.6 MGOe and the residualinduction of 2550 gauss. Thickness toler-ances can be held to within ±.003inches*. In addition, these superiordimensional tolerances allow moreexacting control of performance.

PLASTIFORM® QualityPLASTIFORM® is manufactured using up-to-date statistical methods anddocumented statistical data. Customerscan rely on the proven quality ofPLASTIFORM® bonded magnetic materialsfor a variety of applications.

*Premium tolerance

PLASTIFORM® 1033 Magnet Material



Continuous strip capabilityThe flexibility of this material allows it tobe supplied in continuous strips. This isadvantageous to the DC motor manufac-turer both in terms of production costand performance. Motor strips can be cutprecisely to length, with all magneticpoles exhibiting precisely the samemagnetic properties. In DC motors, thiscondition enhances smooth motoroperation and minimizes brush wear.Continuous strip capability is also advan-tageous to the manufacturer whofabricates parts which may be used asautomated feed systems.

ApplicationsBecause they successfully combine highcoercive force and residual induction withflexibility and ease of fabrication,PLASTIFORM® magnets are now beingused in a wide range of electro-magneticcircuit and equipment applications.Typical applications include:

• Stators for fractional horsepowermotors

• Rotors for brushless DC motors• Reed relay actuation in switches,

keyboards, counters and sensors • Magnetic focusing systems for TV tubes• Multi-pole magnetic rotors for timer,

stepper and clock motors• High performance latches• Magnetic pick-ups for electronic ignition

and braking systems• Magnetic clutch in computer disc pack

drive• Snap-action devices for use as power

switch contactsA primary reason for the material's accep-tance into these markets has been itsadaptability to automated handlingsystems.

The automated equipment used to insertPLASTIFORM® permanent magnets intofractional horsepower motor and alter-nator housings can consist of thefollowing components:

1. The magnetizing fixture which is builtinto the inserter machine to magnetizethe magnet prior to insertion

2. A power unit designed to provide elec-trical energy to the magnetizing fixture

3. The inserter machine itself, consistingof an injector arm to push the materialinto a circular die cavity, and a plungerthat completes formation of themagnet material and inserts theformed part into the motor or alter-nator housing

The inserter equipment shown at the topof the page illustrates the principles ofautomated production usingPLASTIFORM® magnets. These principlesare easily applied to modern manufac-turing processes and are designed tosave production time and drasticallyreduce rejection rates without sacrificingperformance. The magnetizer-inserterand other application equipment can befabricated by a machine builder, or in themanufacturer's own tooling department.Arnold Applications Engineering Serviceis available to provide the technical assis-tance necessary to get such equipmentbuilt and into operation.

AvailabilityThe basic manufactured form is a roll ofsheet stock which can be easily fabri-cated into parts of the desired shape.

PLASTIFORM® permanent magnets arefabricated in accordance with customerspecification. The material can beproduced in virtually any size or shape,including continuous length strips. It is

available in either a magnetized ornonmagnetized state. The number ofpoles per surface and magnetizationpattern are determined by the appli-cation needs of the customer.

For information on other ArnoldPLASTIFORM® magnet materials, refer tothe appropriate product informationsheets.

Sampling/prototyping/toolingSamples of PLASTIFORM® magnetmaterial 1033 for prototype evaluationcan be supplied for design feasibilitystudies in standard, unmagnetized 3"x24" strips. Such samples can bemachined, slit, punched or cut to thefinal part dimension. Magnetizedsamples and samples in non-standardsizes can be provided on a lot chargebasis. Requests for quotes on non-standard or magnetized sample partsshould be directed to your ArnoldEngineering sales representative.

Production toolingBlanking and cut-off dies can beproduced to meet quantity requirementsfor the final part dimension. Requests forquotes on engineering costs associatedwith tooling should be directed to yourArnold Engineering sales representativewith a print of the part to be fabricated.

PLASTIFORM® flexible magnets offer money-saving advantages in PM motor stator and brushlessmotor rotor applications through automated magnetizing and insertion equipment.



Arnold application engineeringservicesArnold Application Engineering Servicespersonnel are available for assistance in the following areas:

Application inquiries—provide answersto technical questions on magnet use forproposed applications.

Magnetization requirements—assistin defining requirements for productionmagnetizers, poling fixtures, andperipheral equipment in accordance withspecific application needs.

Magnetic optimization—providemagnetic circuit design suggestions toachieve optimum product performance.

Prototype testing evaluation—perform testing and evaluations ofdesign, prototype and production partsin fully equipped electrical laboratories.

A technical bulletin on prototyping formotors using PLASTIFORM® magnetmaterial is available on request.

*All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.Test Methods1 Pole-coil Hysteresigraph

*± .020 considered on an individual application basis.

Typical Magnetic Properties @ 23°C (73°F)


CGS/U.S. SI

Maximum Energy Product(Bd Hd max) 1.6 MGOe 12.7 x 103 kJ/m3

Residual Induction1 (Br) 2500 Gauss 255 mT

Coercive Force1 (Hc) 2300 Oersteds 183 kA/m

Coercive Force, Intrinsic1 (Hci) 3600 Oersteds 287 kA/m

Recoil Permeability 1.04 1.04

Reversible TemperatureCoefficient of Induction (Br) –0.105% per °F –0.19% per °C

Reversible TemperatureCoefficient of Coercivity (Hci) 0.07% per °F 0.13% per °C

Peak Magnetizing Force Required 10000 Oersteds 800 kA/m

Size ofMagnet Part Tolerances(inches) (inches)

Thickness Standard Premiumup to .060 ± .005 ± .002.061 – .200 ± .007 ± .003.201 – .300 ± .010 ± .005.301 – up ± .013

Widthup to 1.250 ± .019 ± .0121.251 – 1.949 ± .019 ± 1%over 1.950 ± 1% ± 1%

Lengthup to 1.200 ± .019 ± .0051.201 – 2.000 ± .019 ± .0102.001 – 4.000 ± 1% ± .5%4.001 – 13.000 ± 1% ± .030*13.001 – 20.000 ± 1% ± .05020.001 – up ± 1%


CGS/U.S. SI

MechanicalDensity1 0.137 lbs/in3 3.8 gm/cm3

Hardness2 55 Shore D 55 Shore DTensile Strength3 640 psi 400 N/cm2

Elongation3 18%Flexibility4 Pass – 180° bending on

mandrel equal to 7 times the sample thickness

ElectricalVolume Resistivity5

(50% R.H. ) 1010 ohm-cm 1010 ohm-cmDielectric Strength6

(50% R.H.) 250 volts/mil 10kV/mm

ThermalThermal Coefficient of ThicknessExpansion (4% to 120%) 9.8 x 10–5 in/in per °F 18 x 10–5 cm/cm per °C

Maximum ContinuousOperating Temperature 250°F 120°C

*All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.Test Methods

1 ASTM D-297 4 Arnold Test Method2 ASTM D-2240 (10 sec. delay) 5 ASTM D-2573 ASTM D-412 6 ASTM D-149

Typical Physical Properties @ 23°C (73°F)

Typical TolerancesDesigners can consider the followingtolerances to be typical of productionparts:



Typical Demagnetization Curve @ 23°C (73°F)*

4000 3500 3000 2500 2000 1500 1000

1500

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500

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B (

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ass)INTRINSIC

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* All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.PLASTIFORM® 1.6Br 2550 GaussHc 2300 OerstedsHci 3600 OerstedsBH max 1.6 MGOe

Not recommended for specification purposes. Product specifi-cations will be provided upon request. ** Good—minor or no effect; up to 10% swell in thickness

Fair—moderate effect; 10-25% swell in thicknessPoor—severe effect; greater than 25% swell in thickness

Typical Chemical Resistance(Nitrile Rubber Binder)

Chemical(7 days immersion @ RT) Performance**

Motor Oil GoodTransmission Oil GoodHydraulic Fluid GoodKerosene GoodJP-4 Fuel Fair Gasoline Fair Heptane Fair Antifreeze Good Clorox Good Turpentine Good Water Good Detergents Good Salt Spray Good Aromatic Hydrocarbons Poor(Benzene, Toluene, Xylene)Chlorinated Hydrocarbons Poor(Carbon Tetrachloride,Trichloroethylene)Ketones PoorAlcohols Fair Acids, Inorganic Poor(HCl, H2SO4)


Product Availability Guide

Magnetic plate backing is a specialadaptation of Arnold's flexible magnettechnology to the needs of today's flexo-graphic and letterpress platemakers andprinters. Essentially, it involves the use ofmagnetic force to attach printing platesand rubber die blankets to steel-surfacedpress cylinders.

The following is a list of products that arecurrently in the magnetic plate backingline:

1035The original magnetic plate backingproduct, it consists of a .030" thickmagnetic layer with a .0025" thick layerof steel foil covered with black, vulcan-izing rubber adhesive. The product has acomposite thickness of .033". B-1035 issold in 18"-wide by 25'-long rolls.

1044This versatile product is currently beingused in a wide variety of flexographicapplications. Corrugated printers havefound 1044 particularly beneficial inmounting rubber and photopolymer boxdies, pre-mounts and pull bands on letter

and flexo presses. The product is alsodesigned to provide easy mounting ofrubber die blankets and glue pads. B-1044 consists of 18"-wide material witha thickness of .030" or .050". Availablein 25' rolls, it does not contain steel foil.Flexographic printing plates can bebonded to the magnet using commer-cially available sticky back or contactcement.

10461046 was developed for platemakers andprinters who want all the advantages of amagnetic mounting medium, plus theoption of grinding plates for calipercontrol. It adapts well to the mounting ofphotopolymer plates and to such newmounting concepts as cushioned stickybacks. The product consists of a .030"-thick magnetic layer laminated to a layerof .0025" steel foil, for a compositethickness of .033". Sold in 18"-wide by25'-long rolls, 1046 can be bonded toplates with commercially available stickyback adhesives, allowing it to be reused.

PLASTIFORM® 1035/1044/1046Magnetic Plate Mounting System


Energy product 1.0 MGOe flexible permanent magnet product

• Machinability permits simple and inexpensive shaping and assembly processing

• Resilience prevents chipping, cracking or shattering

• Close dimensional and magnetic tolerances allow substantial cost reductions

DescriptionPLASTIFORM® Permanent MagnetMaterials are rubber barium ferritecomposites manufactured in sheets, stripsand individually cut pieces. Magneticproperties are generated by preferentiallyorienting ferromagnetic barium ferrite ina stable binder. It is highly anisotropic andpossesses an unusually strong resistanceto demagnetization.

1037 material is a specially formulatedmagnet product designed for use in latchand similar applications. The high degreeof conformability exhibited by thismaterial allows it to match various polepiece configurations and yields optimumperformance when sandwiched betweenpole pieces.

Features and benefitsThe physical and magnetic properties of1037 material combine to offer a varietyof features including:

Flexibility and resiliency—Designinnovations and automated manufac-turing techniques are more practical withPLASTIFORM® flexible magnets, which donot chip or shatter like hard and brittleceramic barium ferrite materials.

Ease of fabrication—PLASTIFORM®

magnets offer inherently low toolingcosts and can be readily machined, cut,slit, punched, drilled or milled into simpleor intricate shapes.

High magnetic strength—The ferriteparticles in PLASTIFORM® magnets areoriented as they are processed, providingmagnetic properties equal to, orexceeding, those of conventionalisotropic ceramic ferrite magnets.

Cost reductions—Greater designlatitude and more efficient productionmethods made possible by its uniqueproperties contribute to reduced costs inmany stages of product development.

ApplicationsUses for this magnet product range fromnovelties to industrial applications, suchas magnetic separator equipment andfreezer door latches. Many of these usesrequire specialized fabrication of themagnet material, a demand which 1037is eminently well suited to meet.

Because PLASTIFORM® magnet materialsuccessfully combines high coercive forceand residual induction with flexibility andease of fabrication, it is currently beingused in a wide range of mechanicalapplications. Among these are:

Magnetic printing press cylindersTool and part racksMagnetic couplers

Moveable partition supportsMetal storage bin identification labelholdersMagnetic jigs and fixturesNovelties

AvailabilityPLASTIFORM® permanent magnets arefabricated in accordance with customerspecification. The material can beproduced in virtually any size and shape.The material is available in either magne-tized or nonmagnetized condition. It canbe magnetized with one or more poleson each surface and in a pattern thatmeets with the application needs.

PLASTIFORM® QualityPLASTIFORM® is manufactured using up-to-date statistical methods anddocumented statistical data. Customerscan rely on the proven quality ofPLASTIFORM® bonded magneticmaterials for a variety of applications.

*All values shown are typical and not intended for specification purposes. Specification values will be provided upon request.Test Methods1 ASTM D-2972 ASTM D-22403 ASTM D-412

Typical Physical Properties

Properties Typical Values*

CGS/U.S. Units SI Units

Density1 (at 23°C) 0.134 lbs/in3 3.71 g/cm3

Hardness2 (at 23°C) 55 Shore D 55 Shore D

Tensile Strength3 (at 23°C) 640 psi 440 N/cm3

Thermal Coefficient of Thickness 9.8 x 10–6 mil/mil 18 x 10–5 cm/cm Expansion (4° to 120°C) per °F per °C

Maximum Continuous 200°F 95°COperating Temperature

PLASTIFORM® 1037Permanent Magnet Material


400045005000 3500 3000 2500 2000 1500 1000

1500

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2500

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B (

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ass)

INTRINSIC

NORMAL


Typical effect of temperature onmagnetic strengthIn many applications, the operatingtemperature of a magnet may be muchhigher or lower than the average roomtemperature. The effect of temperatureon the magnetic properties ofPLASTIFORM® materials should beconsidered where such conditions exist.

The residual magnetism (Br) ofPLASTIFORM® magnets will decrease atapproximately 0.1% per degreeFahrenheit above 70°F (0.19% perdegree centigrade above 21.1°C) andwill increase at 0.1% per degreeFahrenheit below 70°F (0.19% perdegree centigrade below 21.1°C). Themagnet becomes weaker as the temper-ature is raised and stronger as thetemperature is lowered. The value of thecoercive force (Hc) also changes, but thisis significant only where a high demag-netizing field may be applied at lowtemperatures, such as in DC motor appli-cations.

Changes due to temperatures are notpermanent, but are reversible.Consequently, the original magneticvalues are recovered upon return toroom temperature. Both ceramic andflexible barium ferrite magnets aresubject to this effect.

Technical assistanceArnold's engineering and technical staffpersonnel are available to assist insuggesting magnet sizes and types forproposed applications. Design advice willbe provided regarding methods ofachieving optimum product perfor-mance, such as pole pieces, backingplates, channels or other assemblies.

*All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.Test Method1Pole-coil Hysteresigraph

*All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.

Typical Magnetic Properties

Properties Typical Values*

CGS/U.S. Units SI Units

Maximum Energy Product 1.08 MGOe 8.6 kJ/m3

(BdHd max) (at 23°C)

Residual Induction1 (Br) (at 23°C) 2150 Gauss 215 mT

Coercive Force1 (Hc) (at 23°C) 1650 Oersteds 1315 kA/m

Coercive Force Intrinsic1 (Hci) 2150 Oersteds 1710 kA/m(at 23°C)

Recoil Permeability (at 23°C) 1.08 1.08

Reversible Temperature Coefficient – 0.105% per °F – 0.19% per °Cof Inductivity (Br)(20-120°C)

Reversible Temperature Coefficient 0.12% per °F 0.22% per °Cof Coercivity (Hci)(20-120°C)

Peak Magnetizing Force Required 10000 Oersteds 8000 kA/m

Typical Demagnetization Curve*

PLASTIFORM® B-1037Br 2150 GaussHc 1650 OerstedsHci 2150 Oersteds

BH max 1.08 MGOe


Pressure-sensitive adhesive, high energy level magnetic material

• 16 oz/in2 minimum holding force

• Easy application with pressure-sensitive adhesive backing

• Easily cut with scissors or knife

• Adheres and remains flexible at low temperatures

• Available in two thicknesses and in widths from 1/4 in. to 23 in. (6.3 mm to 584 mm)

PLASTIFORM® Magnet Tape is a flexible,polymer-bonded product coated on oneside with the pressure-sensitive adhesive.The magnetic material is made using aspecial process that orients barium ferritecrystals in the polymer binder duringmanufacture. This orientation processyields a magnet with excellent magneticproperties.

The high energy magnet tape is thenpermanently magnetized with multiplenorth and south poles along its length,providing a minimum holding force of 16ounces per square inch.

The strong holding power ofPLASTIFORM® Magnet Tape allows its usein relatively narrow widths where itcombines economy with exceptionalperformance capabilities.

PLASTIFORM® Magnet Tape can be bent,twisted and flexed without loss ofmagnetic energy. The product conformsreadily to irregular surfaces withoutcracking. It will not lose its magneticstrength when dropped or struck.PLASTIFORM® Magnet Tape is, indeed,permanently magnetic.

Self-sticking, pressure sensitiveadhesivePLASTIFORM® Magnet Tape has a high-tack, pressure-sensitive adhesive layer onone side, protected by a peel-awaybacking. The adhesive will adhere to awide variety of surfaces including mostplastics, wood and metal. The nonad-hesive side may be used to hold smallferrous objects such as small screw driversand other tools. The product also savestime by holding small parts duringassembly. PLASTIFORM® Magnet Tape is aversatile holding material, which can beused effectively on both metal andnonmetal surfaces.

Temperature resistancePLASTIFORM® Magnet Tape retains itsflexibility even in cold weather. Theproduct performs well, indoors or out, inhot or cold climates. Extensive testing attemperatures ranging from -40°F to160°F (-40°C to 71°C) has documentedthe broad range of capability of both theadhesive and the magnetic holding force.

ApplicationPLASTIFORM® Magnet Tape is easily cutwith a scissors or knife. Adhesivemounting surfaces should be free of dirt,grease, oil and solvent. Followingplacement, the magnet tape should bepressed down firmly with a roller.

Clean, safe handlingThe magnetic side of PLASTIFORM®

Magnet Tape is specially coated to ensureclean attachment. This coating also resiststhe external physical conditions thatmight otherwise result in adhesivebonding between magnet and applica-tion surface. Newly painted surfacesshould be allowed adequate drying timebefore application of magnet tape.

20

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4 6 8 10 15 20


Ho

ldin

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orc

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oz/

in2

11 ppi 0.055 in.

18 ppi 0.030 in.

Typical holding force without steelbackup

PLASTIFORM® 1316 and 1317Magnet Tape


PLASTIFORM® 1316 and 1317 Magnet Tape

*Steel used in magnetic circuit was SAE 1010-1020.(a) 8 ppi 0.055 in. (non-std.)(b) 11 ppi 0.055 in.(c) 11 ppi 0.030 in. (non-std.)(d) 18 ppi 0.030 in.

* All values shown are typical and are not intended for specification purposes. Specification values will be provided upon request.Substate variation causes wide variations in adhesive values.

Typical holding force with steelbackup (0.010 in. steel) Availability

Thickness: 1316: 0.035 in. (0.84 mm) (approximately 3/64 in.)1317: 0.060 in. (1.55 mm) (approximately 1/16 in.)

Width: 1/2 in., 3/4 in. and 1 in. (12.7, 19 and 25 mm) are standard widths. Product is available in widths up to 23 in. (584 mm) on special order.

Length: Standard length is 100 feet (30.5 m) long. Special lengths are available on special quotation.

Magnetization: 1316: 18 poles per inch of width (ppi)1317: 11 poles per inch of width (ppi)

Either product can be magnetized 18, 11 or 8 poles per inch of width, subject to special quotation.

Custom thickness, width and magnetization are available on special quotation.

Typical Physical and Magnetic Properties*

Magnetic Holding Force: 16 oz/in2 (70 g/cm2) to bare steel. Because of its greater reach out capabilities, the thicker magnet (0.055) is suggested where greater air gaps are required.

Sliding Force: 8 oz/in2 (35 g/cm2) to polished steel

Peel Adhesion: 60 oz/inch (7.6N/10 mm)

Temperature Range: -40°F to +160°F (-40°C to +71°C)

Flexibility: 1316: 0.035 in. (0.89 mm) thick—Bend around 1/8 in. (3.2 mm) diameter mandrel

1317: 0.060 in. (1.5 mm) thick—Bend around 1/4 in. (6.3 mm) diameter mandrel

Chemical Resistance:Weather ExcellentWater ExcellentOzone ExcellentDilute Acids GoodDilute Bases GoodOils and Common Solvents Poor

Shelf Life: 1 year from delivery date

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1022 Magnetic Viewer

A sealed device to inspect magnetized patterns

• Does not require use of exterior chemicals

The 1022 Magnetic Viewer provides afast, clean way to view magnetizedpatterns. The viewer makes visible therecorded signal on magnetic tapes, discsor cards. It requires no exterior chemicalsand eliminates messy clean up ofchemical preparation.

With this convenient instrument, you can easily view recorded signals for headalignment, track placement, pulse definition, interblock spacing and drop-out areas in computer andinstrumentation work.

The viewer can also be used todetermine, record or reproduceproblems in malfunctioning systems. Asignal will be visible if the record modeis operating properly. And if the repro-ducer mode is functional, it shouldplayback the visible signals.

The 1022 viewer can be used tosynchronize the audio track on a videorecorder and to examine the pattern ofrecorded sound in audible range applications. It is functional in deter-mining whether tools, heads or guidesare magnetized. The viewer can also beused to examine the magnetic patternon other types of magnetized parts, suchas cylinders and strips, which have bothconventional and multi-pole magneti-zation patterns.

The 1022 Magnetic Viewer is supplied in a humidor jar designed to prolong the viewer life.

Resolution of the 1022 Magnetic Viewer is 200digital B.P.I. Resolution of standard level analogrecording to 500 Hz at 7.5 I.P.S.


1022 Magnetic Viewer

Handling precautionsThe 1022 Magnetic Viewer must be keptin its moist humidor jar with the lidtightened when not in use.

Be sure to check the sponge in the jar ona regular basis (at least monthly) toensure that it remains wet. Add regulartap water to the sponge as necessary.

Rough handling or dropping of theviewer may result in damage or leakage.When removing any bubbles from the

viewing area, gently tap the metaldiaphragm. Do not exceed a pressure of.25 psi on the metal diaphragm asexcessive pressure will damage viewerconstruction.

Viewers found to be defective becauseof materials or workmanship will bereplaced if returned within a period of30 days from date of purchase. Viewersdamaged through improper handling willvoid the warranty.

How to use the viewer

Viewer can be used to check magnetized pole patterns on a variety of configurations, such as the ringmagnet at the right.

1.To disperse the solution, hold viewer inhorizontal position and shake vigor-ously in a left-to-right motion.

2.Gently tap the thin metal diaphragm(with viewer in vertical position) toremove any bubbles from the viewingarea.

3.Remove minor amounts of waterwhich may be on back of diaphragm.

4.For greater sensitivity, place viewer on aflat surface for 30 seconds before use.

5. Place magnetic tape coated side up onresilient surface; set viewer on tapeand allow 1 to 20 seconds for fieldpattern to form clear image.

Limited Warranty and ExclusiveRemedyPlease see the Limited Warranty andExclusive Remedy information for TheArnold Engineering Company.

Company:

Address:

Phone No.: Fax No.:

E-mail:

Reply To:

Application and General Information:


Customer ServicePLASTIFORM DIVISIONP.O. Box 15671000 East Eisenhower AvenueNorfolk, Nebraska 68702-1567

(402) 371-8495

Inquiry No.:

Reply Requested By:■■ Fax ■■ Phone■■ Mail ■■ E-mail

Arnold Part No.:

Material:

Magnetized:

Direction of Orientation:

Delivery Requested:

Quantity/Estimated Annual Usage:

Print or sketch — Please include description: all dimensions and tolerances; material; magnetic requirementsand material grade required; type of coating and color.

For 24-hour turn-around on quotations:

Request for Quotation

MAIL TO: FAX TO:


Limited Warranty and Exclusive RemedyFlexmag Industries, Inc. warrants thatthese products conform to industrystandards specific herein and will be freefrom defects in material andworkmanship. THIS WARRANTY ISEXPRESSLY GIVEN IN LIEU OF ANY ANDALL OTHER EXPRESS OR IMPLIEDWARRANTIES, INCLUDING ANY IMPLIEDWARRANTY OF MERCHANTABILITY ORFITNESS FOR A PARTICULAR PURPOSE,AND IN LIEU OF ANY OTHER OBLIG-ATION ON THE PART OF THE FLEXMAGINDUSTRIES, INC. Flexmag Industries, Inc.will, at its option, repair or replace freeof charge (excluding all shipping andhandling costs) any products whichhave not been subject to misuse,abuse, or modification and which in itssole determination were not manufac-tured in compliance with the warrantygiven above.

THE REMEDY PROVIDED FOR HEREINSHALL BE THE EXCLUSIVE REMEDY FORANY BREACH OF WARRANTY OR ANYCLAIM ARISING IN ANY WAY OUT OFTHE MANUFACTURE, SALE, OR USE OFTHESE PRODUCTS. In no event shallFlexmag Industries, Inc. and its parentcompany, SPS Technologies, Inc., beliable for consequential, incidental or anyother damages of any nature what-soever except those specifically providedherein for any breach of warranty or anyclaim arising in any way out of themanufacture, sale, or use of theseproducts. No other person is authorizedby Flexmag Industries, Inc. to give anyother warranty, written or oral,pertaining to the products.

Warranty

& RUSSIA

ASIA-PACIFIC

NORTH & SOUTH AMERICA

EUROPE, AFRICA & RUSSIA

Arnold Magnetics (HK) Ltd Unit 5, 10Fl., Kingsford Industrial Centre 13 Wang Hoi Road Kowloon Bay, Hong Kong Tel: (+852) 3106-3737 Fax: (+852) 3105-1955 Email: [email protected]

Arnold Linden Ave. Rochester, NY 14625-2764 USA Tel: 800-593-9127 International: (+1) 585-385-9010 Fax: (+1) 585-385-9017 Email: [email protected]

Swift Levick Magnets Ltd. High Hazels Road Barlborough Links, Barlborough Derbyshire S43 4TZ United Kingdom Tel: (+44) 1246-570500 Fax: (+44) 1246-573000 Email: [email protected]

770 Linden Ave. • Rochester, NY 14625-2764 USA Tel: 800-593-9127 • (+1) 585-385-9010 • Fax: (+1) 585-385-5625

Email: [email protected]

www.arnoldmagnetics.com

©2003 Arnold, SPS Technologies Form No. 613-00-125

plastiform flexible bonded magnets properties

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