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Moltenmetalsplash

STM524Moltenmetalsplashtester

Protective productsoften need to protectagainst theeffectsofimpactfrommolten metal

droplets.Safetystandards,suchasISO11611andENISO20349,havebeendevelopedto

assessgarmentswornbypersonnelcarryingoutweldingandcuttingoperations,againstthese

effects.

Assessmentofproductsbeingsubjectedtosmallquantitiesofmoltenmetal–typicalofthat

producedduringwelding–iscarriedoutusingarigincorporatinganoxyacetylenetorchto

projectmoltenmetaldropsontoavertically-orientedtestspecimenasdetailedinEN348.

Aweldingrodisfedautomaticallytothetorchforcontinuousmeltingandthebehaviourof

materialsischaracterisedbythenumberofmoltendropssufficienttocausea40°Ctemperature

risebehindthespecimen.Theabilityofthedropstoʻrunoffʼthematerial,ratherthanstick,is

criticaltogoodperformance.

Althoughthistestissuitablefortestingweldersʼclothing,glovesandfootwear,itisnotintended

tosimulatealltheconditionsinwhichsplashesofmoltenmetalmaycomeintocontactwith

protectivematerials.

Asastandardtest,itgivesanindicationofmaterialperformanceandisgenerallyusedwith

otherteststoprovideamorecompletepictureofsuitabilityforuse.

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Ozonechambers

SATRAozonetestingtechnologyhasevolvedasaresultofmorethan30yearsofexperience.State-

of-the-arttechnologyandconstructiontechniqueshavebeencombinedwithexpertisetoproducea

reliable,accurate,fullyautomated,labourandcost-savingunitwhichistrulyenvironmentallysafe.

Anintegralclosedloopair-ozonesystemensuresthathazardousozonegasiscontainedinternally

–eliminatingtheneedtoprovideadditionalexternalventingandfilteringofthespentgases.

Theheavydutyaluminiumexposurechamberhasananti-corrosiveinteriorandiscompletewith

rackingsystemtoacceptsample-mountingapparatus.Arangeofstaticanddynamicsampleholders

tointernationalstandardsisavailable.Accessisviaadouble-glazed,airtightandsafetyinterlocked

door.Entrytothetestareaispreventeduntiltheinteriorenvironmentrevertstosafeambientlevels.

Exteriorlightingcanbeexcludedfromthetestareaviaashade,whiletheinteriorcanbelitbythe

integraltestinspectionlamp.

Controlsanddigitaldisplaysarelogicallylaidoutonacontrolpanelandreflectthesimplicityof

operationrequiredtosetupatestroutine.Theonlyrequirementistosettheozoneconcentration,

temperature,airflow,relativehumidity(model903chamberonly),teststartandfinishtime.

Theozoneconcentrationisvariablefrom25-500partsperhundredmillion(pphm)–25-2,000pphm

option– andisautomaticallycontrolledand monitored.The setconcentration and monitored

concentrationaredigitallydisplayed,withthemonitoredconcentrationsimultaneouslyoutputtoPC

(viaCalcommsgraphicalsoftware).

Ozonedeliveryaccuracyof±5percentnominalfullscaledelivery(FSD)orbetter,typically±2pphm

in50pphm,measuredunderstableabsorptionconditions.Typicalrecoverytimesaftersample

insertion:achieves10percentofsetvaluewithin15minutes.

OzonegenerationisviaUVozonelampswithamaximumozonegeneratedoutputof200pphmat

250litres/min,andthereisahighozoneoptionof2,000pphm.Theozonisedairflowof40-440

litres/minisinfinitelyvariable,allowingamaximumofthreeairchangesperminuteandaneffective

velocityof3.3-33.3mm/sec.Theinternalcirculationfancanbeswitchedontogive600mm/sec(2

feet/sec)accordingtoASTMD1149.Ozoneconcentrationmeasurementaccuracyis±2pphm.

Controlaccuracyis4percentofsetpoint(±2pphmat50pphm).

Thetesttimerprovidesdigitalprogrammingofuptosevendays,withteststartandteststop.

HTE703

Temperaturerangeoptionsformodel703:0-70°C.*10-70°C.(Ambient+5)°C-70°C.

*Thetestingofrubberatlowtemperaturesdownto0°Ciswelldocumented,andconclusionsfrom

experimentsundertakenusingSATRAtestchambers,whicharecapableofachievingsuchlow

temperatures,mayhaveanimportantbearingonthefuturedevelopmentofozonetestmethods.

Temperaturecontrolaccuracy:±1°Cat40°Cand±2°Cat70°C.Typicaltemperatureandozone

recoveryperiodfollowingsampleinsertionis<10percentofsetpointafter15minutesand4percent

after30minutes(coldstarttimeswillvary).

Electricalsupply220-240V/singlephase/50-60Hzratedat1kVAsystem,unaffectedbyvariationsof

10percentfromnormal.

HTE903

Temperaturerangeformodel903:0-70°C.Allrangesareautomaticallycontrolledbyasolidstate

digitalproportionalcontroller,temperaturedigitallydisplayedandsimultaneouslyoutputtoaPC(via

Calcommsgraphicalsoftware).

Relativehumidity(RH)controlformodel903:Range50percentto80percentRHoverexposure

chambertemperaturerangeof23-40°C.Controlaccuracyof±5percentRHisachievedatconstant

temperature.

Watersupply:Maximumtemperature15°C.Minimumpressure2bar.Maximumflowrequired80

litres/hour.Inareasofhardwater,ade-calcinatorshouldbeused,andwhereamaximumwater

temperatureof15°Ccannotbemaintained,arecirculationchillersystemshouldbeemployed.

Electricalsupply220–240V/singlephase/50-60Hzratedat3kVAsystemunaffectedbyvariationsof

10percentfromnormal.

HTE703/903Ozonetestchambers

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Permeability

ThisisapreferredSATRAtestandunlikemanyothermethodsitattemptstosimulatethe

environmentwithin a shoe,that is100%relative humidityatfoottemperature.Aswell as

measuringtheamountofmoisturetransmittedthroughthematerial,thequantityofmoisture

absorbedbytheuppercan also bedetermined.Thisisimportantbecause althoughsome

materialsmaybeimpermeable,theabilitytoabsorbmoisturemeansthatthefootwillfeeldry

tothewearer.Themoisturecandesorbfromthematerialbyevaporationoncetheshoeisoff

thefoot,forexample,overnight.

Anassemblyofdiscsofoutermaterial,lining(ifusedinthefootwear)andastandardhose

(sock)fabricisclampedandsealedacrossthetopofaplasticpotcontainingdistilledwater.The

waterinsidethepotismaintainedatatemperatureof32°Cbyrestingthepotinatemperature-

controlledwaterbath.Theatmosphereoutsidethepotismaintainedbycarryingoutthetestin

aconditionedroomandmaintainingaflowofairacrossthetopofthepotataspeedequivalent

toabriskwalkingpace.Iftheouterispermeable,watervapourpassesthroughthecottonhose

andthetestmaterialinthesamewaythatperspirationwouldinashoe.

Thepermeabilityofthematerialisdeterminedbymeasuringtheweightlossoftheassemblyat

intervalsthroughoutasix-hourperiod.Careisneededduringthetesttoavoidsplashingthe

reverseofthetestsamplewiththewaterinsidethepotandtoensurethattheoutersurfaceof

the testpotisthoroughlydried afteritisremoved fromthewaterbath forweighing.The

absorptionoftheuppermaterial,liningandthestandardcottonhosearemeasuredbyweighing

eachdiscatthestartandendoftest.

STM175SATRApermeabilityandabsorptiontest

Thisdevicedeterminestheamountofwatervapouramaterialwilltransmitthroughitsstructure

inaspecifiedtime.Thetestismainlyapplicabletoleathersandtextilesusedinfootwearuppers

andclothingwhereitgivesameasureoftheabilitytoremoveperspirationfromthesurfaceof

thewearerʼsskin.

TheSATRAmachinehassixseparateteststationsonarotarytableandeachonehasasample

holder.Silicageldesiccantisplacedintheholderandthetestmaterialisplacedovertheneck

oftheholderandsecuredbyascrewtop.Afterweighingeachholder,completewithsilicagel

andsamplematerial,theholdersareplacedandlockedintotherotarymechanism.After7-8

hoursthecompleteholderisweighedagainandthegainisusedtodeterminethedegreeof

permeability.Itisessentialthattheentireoperationiscarriedoutinaconditionedatmosphere.

InadditiontothestandardequipmentsuppliedwiththeSTM473,thereisabuilt-intimerto

recordthenumberofhoursthattestinghasbeencarriedout.

STM473Watervapourpermeability

TheSTD478watervapourabsorptiontestapparatusmeasuresamaterialʼsaffinitytoabsorb

watervapour.Atestspecimenisclampedbetweentheopenendofatestpot(containinga

specifiedvolumeofwater)andanimpermeableseal.Thepotisthenstoredataspecified

temperatureforasettime,afterwhichthechangeinmassofthespecimenisdetermined.

TheSTD478testapparatusconsistsofsixtestpotseachhavinganinternaldiameterof35mm

andavolumeof100cm3,aremovablelidwhichcanbesecurelyclampedovertheopenendof

thepotandanimpermeablesealheldovertheendofthepotbythelid.

InadditiontotheSTD478apparatus,alaboratorybalanceandastopwatcharenecessaryto

determinewatervapourabsorption(availablefromSATRA).

STD478Watervapourabsorption

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Pinchandgrip

Ithaslong beenrecognised thatgoodglovegrip isanimportant

considerationforgloveusers,satisfactoryperformanceandsafety

canbecompromisedbygloveswithpoorgripcharacteristics.

Historically, glove standards have been primarily aimed at the

protectivepropertiesoftheglovesoratbasicdexteritytesting.These

twonewmachinesaredesignedtofillthisgapinthetestingprotocol

andhavebeendesignedwithinputfromwithinthegloveindustry.

TheSTD620pinchtesterisdesignedtotestperformanceofthe

fingerandthumbʻpinchgripʼelementofthegloves,whiletheSTD

621griptesterisdesignedtotesttheperformanceofthewholehand

grip.Bothmachinesutiliseloadcellstorecordforcedata,andboth

machinesaresuitablefortestingawiderangeofglovesfromfine

textileandlatextypeproductsuptoheavydutyindustrialgloves.

Testingcanbeundertakenonbothcleanandcontaminatedgloves

andbycombiningthetwodifferenttestmethodsanoverallresultfor

wholeglovegripcanbeobtained.

STD620/STD621Glovepinchandgriptests

STD621

STD620

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Pipiness

Thisisawidely-usedreferencescaleformeasuringthewrinklingofthegrainofleatherorthe

topsurfaceofasyntheticmaterialwhenfoldedinwardstoastandardcurvature

Itconsistsofagradedselectionofreplicasofleathernumberedonetoeightwithdifferent

amountsofpipinessandamandrelforbendingthesampletothesameradiusasthescale.

Byusingthenumberedscale,amoreobjectiveevaluationcanbemadeofthepipinessofa

material.

STD174Break/pipinessscale

TheplastimeteristhestandardSATRAtestmethodforassessingthesettingpropertiesof

leather.Itisalsousedtotestnewsyntheticuppermaterialsandchecktheperformanceofheat

settingmachinesbyusingasampleofmaterialofknownheatsettingproperties.

Adiscofmaterialtobetestediscementedtoabrassringandthenplacedintheplastimeterʼs

clampinghead.Itisthendeformedbyforcingintoitanon-metallicdome.Thissimulateslasting

andiscontrolledbymeasuringtheheightoftheformeddomeofmaterialwithamicrometer.The

deformationgivesanareaincreaseofaround15%.

Whileitisinthestrainedposition,thedomeplastimetercontainingthesampleispassedthrough

theheatsettingmachine.Aftertreatment,thedomeisremovedandthecapheightofthedome,

shapedinthematerial,ismeasuredatvarioustimes.Fromthis,thedomeareaiscalculatedand

theproportionoftheareaincreaseretainedistheʻplasticityʼorʻsetʼofthematerial.

STD449Lowprofileplastimeter

Resilience

Plastimeter

TheSTD645isasturdybench-mountedinstrumentdesignedtomeettherequirementsofthe

rubberindustry.

Reboundresilience(elasticity)facilitatesasimplemethodofmeasuringdampingproperties

andiscommonlyusedinconjunctionwithhardnesstestingforbasicqualitycontrol.

Thesampleislocatedagainstapolishedanvilandsecuredbyspringclips.Adjustmentcanbe

made toaccommodatedifferencesinsamplethickness.Thependulumisreleasedfroma

horizontalpositionandstrikesthesampleataverticalpoint.Itsreboundheightisdisplayed

digitallyasapercentageofitsdistancefromthehorizontalstartposition.

STD645Resiliencetester

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Rubfastness

Thesemachinesaredesignedtocarryoutarubfastnesstestonthesurfaceofleathertodetermine

theamountofʻmarringʼoftheleathersurfaceorthefinishandtoassesstheamountofcolourtransfer

fromthesampletotherubbingpad.

Thetestcanbecarriedoutunderdryorwetconditionsbyusingadryrubbingpad–orpre-wetting

therubbingpadindistilledwaterorasweatsolutionpriortotesting.Thesamemachinecanalsobe

usedtoassesstheabrasionresistanceofinsoleboards.ThistestiscoveredbyVESLIC–C4500and

IUP450.

Thetestingmachinesaresuitableforawiderangeofteststhatrequireaʼtoandfroʼmovementona

materialsurface.Therubbingelement,numberofcycles,loadandtemperaturecanbeadjustedto

suitthetestmaterialrequirements.

Therearetwomodels:asingle(STM421)andatwo-station(STM643B)machine.Thelatteralsohas

thebenefitofhavingonestationheatedforironingtests.Thistestisusedtodeterminethereaction

oftheleathersurfacetotheapplicationofheatandpressureparticularlywhenexperiencedduring

ʻironingʼbutalsowhenassociatedwiththenormallastingprocess.Thermoplastic-basedfinishesare

particularlysusceptibletodamagethroughironing.Theironingcharacteristicsoftheleathercanbe

influencedbytheadditionofagentsinthefinishwhichhelpthemtoachievealeathersurface

favourabletoironing.Ametalfootisprovidedwiththemachinetofacilitatetheironingprocess.This

testiscoveredbyVESLIC–C4580.

Theabrasioneffectofsolingmaterialsonuppermaterialscanalsobetestedonthisequipment.Using

asmallprofiledrubberpadinplaceofthefeltpad,samplescanbetestedforthiseffect.Abrasionof

theupperbythesolingmaterialcanbecausedinnormalwearparticularlywhenwearerscrosstheir

legsandthesoleofonefootrestsontheupperoftheotherfoot.ThistestiscoveredbyVESLIC–

C4505.

Theabilitytopre-tensionthetestsampleisafeatureofbothmodels.Thisisparticularlyusefulwhen

testingstretchyleathersandisarequirementoftheabrasiontestunderC4580.

Operationissimple.Thesampleisplacedonthetestsurfaceandclampedusingtheclampsprovided.

Pre-tensioningcanbeeffectedbyadjustmentoftheknoborscrewinconjunctionwiththepercentage

scaleengravedonthetestingtable.Apre-determiningcounterisfittedtothemachine,causingitto

stopwhenthepre-determinedcountisreached.Thesquarefeltpad(STM421P)isinsertedinthe

machinedholderontheendoftherubbingheadwhichisthenloweredtothesurfaceofthetest

sampleandthemachineswitchedon.Thematerialsurfaceandtherubbingpadareinspectedvisually,

inthecaseofcolourtransfer,thewool-feltrubbingpadisevaluatedusingthegreyscaleprovided

witheachmachine.

Aninitialsupplyofwool-feltpadsisincludedwitheachmachine.

TheSTM643BistheonlyequipmentapprovedandpromotedbyVESLIC.

STM643B/STM421Rubfastnesstester

STM643B

STM421

Thismachinedeterminesthefastnessofthefinishofaleatherupper,leatherlining,synthetic

upperorliningandfibreboard.Rubbingcanbecarriedoutindryorwetconditions.Thelatter

canbewater,solventsinshoepolish,ortoepuff(boxtoe)solventsappliedtothebackofthe

material.

Fastnesscanbejudgedbytheeffectonthesamplematerialorthetransferofcolourtothe

rubbingpad.Thechangeinappearanceofthefinishandthecolourtransferredtotherubbing

padisassessedbyreferencetoastandardscale.

Themachinescanalsobeusedfortestingtherub/abrasionresistanceofinksonprintedfilms

underdryoroilyconditions.

Themachinehasarotatingheadholdingacircularfeltpadunderaloadofeither0.73kgor2.5kg

asrequired.Therotatingheadandfeltpadcanberaisedfromthesamplesurfacebymeans

ofahandleverorautomaticallyinthecaseofSTM462,allowingthetestspecimentobe

examinedduringthecourseofthetest.Thecounteroperatesonlywhenthefeltpadisincontact

withthetestspecimen.Itisapre-determinedcounterwhichcanbesettostopthemachine

whenthepresetcounthasbeenreached.

STM461Circularrubfastnesstester

Shockabsorption

Althoughthehumanbodycanbeeffectiveinabsorbingshockwhenjumping,runningorwalking,

injuriescanstilloccurthroughimpactloadingtothefoot.Suchinjuriescouldbemitigatedbythe

provision of shock absorbing g capabilities s within footwear. For everyday footwear, shock

absorbancewithintheheelconstructioncanbeabenefittothewearer.Sportsfootwearand

otherhigh performancefootwear,includingformilitaryuse,poseadditionalchallengesfor

managingimpactloading.

Forall these typesoffootwear,being able toconducta controlled,mechanisedtestwith

repeatableresultstodetermineshockabsorptioncapabilitiesprovidesavaluablecontribution

toproductdesign,verificationorassuranceofconsistentquality.

TheSTM479allowsadynamicshockabsorptiontesttobecarriedoutonfootwear,cushion

insocksorconstructionmaterialsandprovidesquantifiabletestresults.Themachineoperates

by allowing g a known mass s to o fall onto o the e sample e from a a defined d height. . By use of an

accelerometeranddisplacementtransducer,avalueforthepeakdeceleration(gfactor)forthe

fallingmassisdetermined.Inaddition,thetestallowsanassessmenttobemadeoftheenergy

returnonrebound.Thisinformationisdisplayedonacomputer–notsupplied–andgraphical

displayscanbeprinted.ThismachineissuitedforcombinationtestingwithSATRASTM512

repeatedcompressiontester.

STM479Dynamicshockabsorption

Rubfastness

STM462Circularrubfastnesstester

ThismachinehasalltheattributesoftheSTM461butwithtwoadditionalfeatures.

1. Anautomaticfeaturetoraiseandlowerthefeltpadtoandfromthespecimensurfacewhile

thetestisinprogress:thispreventsoverheatingofthespecimenasaresultofabrasion

betweenthefeltpadandthetestspecimenwhichcanadverselyaffectresults.

2. Anairblowerwhichdirectsanadjustablestreamofcoolingairontothesurfaceofthespecimen

topreventoverheatingofthesampleduringthetest.

Slipresistance

The SATRAslip resistance testerhas s been n developed following

extensivebiomechanicalstudies.Anormalwalkingstepcommences

withheelstrikeandendsasthetoeisliftedfromtheground.Slipis

mostlikelytooccurshortlyafterheelstrikeandjustbeforetoelift

when half body y weightisbeing g applied.The SATRAequipment

recreatestheseconditionsandmeasurestheslipresistancebetween

the sole of the footwearand the floorsurface.The equipmentʼs

uniquedesign allowsitto measuretheslip resistanceofsolings

againststandard flooring materials,orflooring materialsagainst

standard solings. Each machine is supplied d with a standard,

calibratedfloorsurface.Additionalsurfacesareavailableandalmost

anyfloorsurface,whichcanbeattachedtothemachine,canbe

used.

Determiningfrictionorslipresistanceisacomplexprocessrequiring

careful and accurate monitoring of numerous s parameters s in a

relativelyshorttime.Acomputer,housedin the controlconsole,

managesdataacquisitionandprovidesagraphicrepresentationof

thetestdataandcoefficientoffriction(CoF)foreachsampletested.

Thisisachievedthroughconstant,closecontrolofforcesandmotion

speedviaavariable-speedmotoranduniquecircuitrydesign.Test

resultsaredisplayedasafourline,captionedgraph,representing

vertical load, speed of table movement, horizontal load, and

coefficientoffriction.

Teststandardsplacegreatimportanceonthetimingandmethodof

obtainingresults.TheuniqueSATRAsoftwarecontrolsthemachine

andmanipulatesdatagatheredduringthetest.Itensuresaccurate

controloftheentireprocedure,strictlyinaccordancewiththetest

standardparameters.Principaltests,SATRATM144,ENISO13287

andASTMF2913-11,arepre-setinthesoftwareincludedwiththe

machine. Users mayalso o add their own test t standards. These

settingscanbesavedandrecalledforrepeattesting.Teststandards,

includinguser-definedsettings,canbeselectedfromadrop-downlist

tosimplifyoperation.Basedontheuserʼsselections,themachineis

pre-settotherequiredspeeds,delays,andpoint(snapshot)atwhich

theCoFiscalculated.Tosafeguardqualitycontrol,essentialdata

mustbeenteredbeforenewtestscanproceed.Theoperatorʼsname,

teststandard,testsurfaceandallotherrelativedataarerecorded.

Aunique function of the SATRAsoftware is s itsself-teach h mode

appliedduringtesting.Verticalloadismonitoredduringeachtestand

adjustedforthefollowingtestifrequired,ensuringtheverticalload

isalwayscorrect.

STM603Slipresistancetester

Stiffness

Tensiletesting

Inbio-mechanicaltrialsorganisedbySATRA,runninginastiffshoewasfoundtoinvolvemore

muscleactivityinthelowerlegand5percentgreaterenergyusagethaninaflexibleshoe.

Longitudinalflexibility,therefore,isadesirablepropertyforsportsshoesandespeciallyrunning

shoes.Flexibilityisalsodesirableinchildrenʼsfootwear,whereunduestrainshouldnotbe

placeduponthestill-growinganddevelopingfoot.

Inoperation,thefootwearisflexedaboutadefinedlinedrawnacrosstheforepart,thebending

momentrequiredtoflexthefootwearandthemaximumangleachievedarerecordedandused

tocalculatetheSATRAstiffnessindex.

Torsionalstiffnessisameasureoftheresistancetotwistingoffootwearaboutitslongitudinal

axis.Thefootwearisclampedinthetoearea,forcesareappliedthroughtheheelclampsuch

thattheheelandbackpartistwistedfirstinwardsandthenoutwardsuptoamaximumangle.

Thetorquerequiredtoachievethetwistisusedtocalculatethetorsionalstiffnessvalues.

STM507Dynamicfootwearstiffnesstester

Thisgeneralpurposemachinehasbeendesignedtomeasurethestrengthandstretchofa

varietyof shoe materialswith h an accuracysufficient t for manyrequirementsof the shoe

manufacturers.Itiseasytouseandtheloadandextensionvaluescanbeeasilyread.The

instrumentissuitablefortestingmostshoematerialsiftheloaddoesnotneedtoexceed150lb

or68kgandtheextension100%.

ThemachinecanalsobeusedfortheBaumannteartestandjawsSTD172ST,tosuitthistest,

areillustratedinthephotographright.Thesejawsneedtobeorderedseparately.

Inuse,astripofthematerialbeingtestedisclampedbetweentwojaws,initiallyfourinches

(10cm)apart,whichareseparatedbyahanddrivetoapplyincreasingtension.Onejawisfixed

toacantileverbeam.Thedeflectionoftheendofthebeamisproportionaltotheappliedload

andismeasuredbyadialgaugecalibratedtogivetheloaddirectly.Thedialgaugeisfittedwith

amaximum-readingdevicetomakeiteasytomeasurebreakingloads.Thesecondjawmoves

overascalewhichgivestheextensionasapercentage.

STD172Simpletensiletester

Stateofcure

Thisdeviceisusedformeasuringvariationsinthedegreeofcureinmoulded-onrubbersoles

throughouttheirthickness.

Thetestprocedureisbasedonthefactthathardnessvariesinmostrubbers,accordingtothe

stateofvulcanisation.

Theresistancetoindentation,whichisdeterminedbythehardnessoftherubber,ismeasured

atseveralpositionsthroughthethicknessofasampletakenfromadefinedpositionedinthe

soleorheel.Thesamplerestsonavibratingplateandanindentorisloweredontoit.After10

seconds,thedialgaugeissettozeroandtheindentorisloaded.Afterafurther15secondsthe

depthonindentationisreadfromthedialgauge.

Thereadingsofindentationdepthareplottedagainsttheirposition,relativetotheinnerand

outersurfacesofthesole,andacurveindicatingthecureofthesoleisdrawn.Fromthisgraph

theamountofʻundercureʼneartheinnersurfaceofthesolecanbecalculated.

Theequipmentconsistsofadialgauge fittedwitha60°conicalendtotheplungeranda

removable500gweight,allmountedonanelectrically-vibratedbaseplate.

STM135Stateofcuretester

Tensiletesting

SATRAʼstensiletestersarerobusttwincolumnmachineswithreliablemechanicalattributesand

incorporatedigitalsoftwarecontrol.Themachinesdeliverprecisionperformancethroughhigh

efficiencypre-loadedballscrews,highresolutionloadcellsanddigitalACservodrive.The

machinesoperateinbothtensionandcompressionmodesandprovideupto8timesoverload

capacitywithoutdamagetotheloadcell.

Thesoftwareprovidedrunsfromacomputer(notsupplied)andisuserfriendlywithlargedisplay

pagesforinputtingdata.

This software allows the e operator r to load test methods s required d or r to create specific

requirementsforindividualtests.Displaysandreportscanbecustomisedwithforexample,

specificheadingsorcompanylogos.

TheSTM566machine typicallyhasaload capacityof5kNorlesswhereastheSTM766

typically has s a a load capacity of f 20kN. This higher capacity is particularly relevant for

compressiontestingof,forexample,safetytoecaps.

Bothmachinesoccupythesamefootprintandarangeoftest-specificjawsisavailableupon

requestfromSATRA.

STM566/STM766Tensiletesters

STM566Tensiletestingmachineaccessories

STM566SB

STM566H

STM566F

STM566TB

This specially shaped 'C'

clampisnormallyusedinthe

peel strength testing of

footwearsoletoupper.Itcan

also be used as s a a general

purposeclamp.

Topclamp provided(usedin

conjunction with 566F or

566QRbottomclamp).

This attachment is used d to

determine the

heel pin

holdingstrengthoffootwear

insole board, particularly in

theseatregion.

Suppliedasacompleteunit.

Thisisaversatile,standard,

flatjaw,usedforavarietyof

generalpurposeclamping.

Sold individually(normallya

pairwouldberequired).

TheseSATRAthreadbollards

are used to determine the

breakingloadofthreadsand

laces.

Suppliedasapairofjaws.

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