road-rail · pdf filesrs sjölanders has more than 30 years experience ... changing so...

Road-Rail vehicles

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1976 Firstroad-railvehicleforoverheadlinesequippedwithlift–“liftrailvehicle”–LRBwithfrontrailaxleplacedbehindfrontroadaxle.

1978 SecondgenerationliftrailvehicleLRBwithfrontrailaxleplacedinfrontofthefrontroadaxle.

1981 Firstexportedliftrailvehicle,LRB,totheDanishStateRailwayinDenmark.

1982 LiftrailvehicleLRB8-21withfrontsteeringaxleandfullyinsulatedcage,Gothenburg’sTramSystem,Sweden.

1983 FirstexportoutsideEurope,LiftrailvehicleLRBtoCanada.

1984 LiftrailvehicleLRB8-3–first3-armlift,Holland.

1985 Bridgeinspectionvehicle,BRB7-4,SwedenandUSA.

1986-Sincethenwehavedeliveredmorethan500vehiclesworldwide.

SRS Sjölanders History

Oneofthefirstroad-railvehiclesfromthe1940:s.

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Thecontinuousincreaseinrailtrafficbringswithitanincreasedneedformaintenanceactivities.Onstretcheswithhightrafficintensityandthusincreasedwear,maintenancemustbeperformedmorefrequentlyandfaster,tominimizedisturbancestotheordinarytraffic.Ageneraltrendisthattheavailabletrack-timeformaintenanceworkisdecreasing.Thishasmeantincreasedcostswhenusingconventionaltrack-boundmachinesandworkingmethods.Thedemandforefficientandflexiblemachinesandworkingmethodshasthereforeincreased.

Atwo-wayvehiclecanbedrivenontheroadascloselytotheworksiteandtrackasispossible.Afterwhich,thevehiclecanbedrivenupontothetrackandcontinuetotheworksite,performtheworkandthendrivebacktothedriveon/offpoint.Thisreducesthetransporttimeonthetrackconsiderably.Theeffectiveworkingtimeisthereforeincreased.

Thevehiclecanbefittedwithavarietyofequipment–amodularsystem–whichmeansthatthesecaneasilybeadaptedfordifferenttypesofworktaskswithahighdegreeofusability.

Theinvestmentcostsforatwo-wayvehiclearegenerallyconsiderablylowerthanforavehiclethatisentirelytrack-bound.

Two-wayvehiclescanalsobeusedforalongerperiodoftimeattheactualworksitethanapuretrack-bound

Why road-rail vehicles?vehicle,duetothetransportdistancetotheworksitegenerallybeingshorterforthetwo-wayvehicle.Inaddition,thetwo-wayvehiclecanbeloadedatthedepotandtransportmaterialbyroad,driveupontothetrackandcontinuetotheworksitewithouthavingtoreload.

Atwo-wayvehicleisnormallybuiltuponastandardtruckchassis.Thisprovidesgreateconomicadvantages,somethingthatgiveslowerinvestmentcostsandgoodavailabilitytoserviceviaauthorisedworkshopswithgoodgeographiccoverage.

Thevehicleishighlymechanisedandcanbeequippedwithanautomatedsteeringsystem,whichreducesthenumberofoperatorsandthusreducesoperatingcosts.

Themoderntwo-waytechnologyincreasesinimportance,duetobothtechnicalandeconomicalfactors,throughitsgreaterflexibility,higherusabilityandreasonableinvestmentandoperationalcosts.

SRSSjölandershasmorethan30yearsexperienceofsupplyingtwo-wayvehicles,bothnationallyandinternationally.Vehiclesthataredesignedandmanufacturedinaccordancewiththestrictsafetyregulationsthatapplytotrack-boundvehicles.Thetwo-wayconceptincombinationwithnewlydevelopedtoolsandworkingmethodsisthemodernwayofsafelyandefficientlyperformingthemaintenanceactivitiesthat21stcenturyrailwaysdemand.

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Rubber tyres

Slowertransfertorailatlevelcrossingsand unreliablewithoutlevelcrossings.

Trucksrebuiltfordrivingonrails. Rubbertyresintheirnormalpositionprovide lessstabilitytotheworkplatform.

Inmostcountries,restrictedtoabout30km/h forwardspeedonrailsandtechnicallyeven lowerspeedbackwards.

Considerablyhigher.Wearonthegearboxand tyresalongwith“derailing”resultinhigher operatingcosts.

Largevariationsbetweenwetanddryrails.

Reducedspeedrequiredtocrosspoints,level crossingsandothercrossingstoensureasafe passage. Questionablebrakingabilityduetoweather conditions.

Characteristic Steel against steel

Driving On/Off Reliable,smoothandquickatcrossings. Properlyandquicklyperformedwith lateralmovementlegs,withouttheneed foralevelcrossing.Allthiswithout effectingtrafficonadjacenttracks.

Design Designequivalenttoatrainonrails.Rail travellingequipmentfrontandback providesthevehiclewithastableworking platform. Speed Canbedrivenat70-80km/hboth forwardsandbackwards.

Operating costs Low

Braking ability Reliableunderallweatherconditions.EU- approvedintegrationwiththevehicle’s brakingsystem.

Rail tracking Behaveslikeatrack-boundvehiclewhen crossingpoints,levelcrossingsandthird rails.

Safety Solidsafetystatisticsaftermorethan500 vehicleshavebeendeliveredtoalarge numberofcountries.Safetyisbuilt-inat thedesignstage.Astableworkplace.

Steel against steel with hydro-static drive versus rubber tyre drive


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SRS Sjölander’s patented two-way system is equipped with hydrostatic drive,whichmeansthatthereisnocontactbetweenthechassis’ordinaryrubbertyresandtherailwayrails.Whenthevehicleistrack-bound,itrestsentirelyontherailwheels.

Thedesignprovidesimpressiveperformanceontherailsespeciallyconcerningsafety, traction, rail tracking, braking ability, speed and comfort.

ThedesignoftheSRSrailtravellingsystemprovidesforfast and safe driving on/off of rails.Whichgivesbothtime and cost savings.Comparedwithconventionalsystems,SRSrailtravellingsystemrequireslessspaceduringthedrivingon/offprocedure.Therequirementfortransferwidthisabouthalfofthelengthofthevehicle.

Two-wayvehiclescanalsobecomplementedwithadeviceforlateral movement,whichsubjecttocertainconditionsallowsdrivingonandoffwithoutusingalevelcrossing.WiththeSRSsystemitisalsopossibletoquicklyandeasilydriveon/offinarelativelytightcurve.Thismeansthateverytrack disposition/working period can be used more efficiently, withshortertransporttimestotheworksite,whichgivesincreasedeffectiveworkingtimeonthetrack.

Thedesignallowsdrivingonandoffwithoutthevehicleencroachingonthefreespacefortheadjacenttrack.

SRStwo-wayvehiclesarenormallydesignedfora speed of 70 km/h on the track.Incomparisonwithrubbertyre-drivensystems,theSRSsystemfunctionswiththehighestsafetywithinitsspeedrange,sincethevehicletravelsonrailwheelsandthereforeinprinciple,hasthesamecharacteristicsasapurelyrail-boundvehicleonthetrack.

Thismeans:• Minimal risk for derailment when crossing points, wing rails and level crossings. • Technically, there are no special speed restrictions requirements in curves, points and level crossings. • Rapid transport to and from the work site.

Brakingcapacityandtractionareinthesameclassasrail-boundvehicles,whichincreases safety.NowearontherubbertyreswiththeSRStwo-waysystem,sincetheydonothavecontactwiththerails.Thisgivesaconsiderable saving in costssincethetyresdonotneedchangingsooftenduetotheextremewearcausedbyrailcontact.

TheSRSsystemisnormallysuppliedwithun-insulatedrailwheels,inordertoeffectthesignalsystem,buttherailtravellingunitcanalsobesuppliedwithinsulatedwheels.TheSRSsystemallowsremote control of the vehiclefrome.g.alift,aworkingplatformorfromacrane.Thismeansthatnodriverisrequiredinthecabduringthiswork,which saves money and time,andalsoeliminatestheriskofmisunderstandingbetweenthedriverandtheoperator.

SRS road-rail vehicles – advantages

FRB 8

LRB 9–3 LRB 8–21

VRB 17

VRB 25

TRB 20

BRB 7–4

LRB 7–2 S BRB 12–5

CRB 17

SRB 17

SRB 8

CRB 8 SRB 20–V

VRB 25 LR KRB 33

FRB 17 FRB 25

CRB 20 SU PRB 25

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Product overview Category/rail travelling-system 8 – 10 ton 12 – 17 ton 20 – 30 ton 20 – 35 ton

Overhead line vehicle

Bridge and tunnel inspection vehicle

Rail welding vehicle

Recovery and emergency vehicle

Flexible vehicle

Special vehicle

Types of standard chassis for rail travelling equipment:Volvo,DAF,MercedesBenz,Scania,Ford,Izuzu,Hino,Weststar,Peterbilt,International.All systems can be supplied for the following track widths (mm): 891, 1000, 1067, 1435, 1524, 1600 and 1676.Adjustable* system for switching between two track widths (mm): 1000-1435.*Adjustabledrivebogiesystemwithdoublehydraulicmotorsfortotalweight>20ton,canonlybedeliveredfortrackwidthsfrom1067mmandabove.Accessories:Lineliftingrod,generator,lengthmeasurement,cranes,drumholders,snowbrush,optic-cableholder,snowthrower,stopdevice,grasscutters/rotaryimpactcutters,lateralmovementlegs.


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At a level crossing

1.Thevehicleisreversedintothelevelcrossingandstopswhenthebogieispositionedabovethetrack.

2.Thebogie’stransportlockisreleased,itisalignedwiththetrackandloweredhydraulically,sothattherailswheelsareappliedtotherails.Therearofthevehicleisthusraised,whichfreestheroadwheelsfromcontactwiththeground.

SRS three point drive-on drive–off procedure

3.Thevehicleisthenpulledbackwardsbythehydrostaticrailbogieuntilthefrontrailaxelisdirectlyabovethetrack.

4.Thefrontrailwheelaxleisthenloweredbythedriverinthecabwhichfreesthefrontroadwheels,whenthefrontrailwheelsareappliedtotherails.

5.Thevehicleisnowcompletelytrack-bound.

Without a level crossing

1.Thevehicleisreversedintothetrackandstopswhenthebogieispositionedabovethetrack.

2.Thebogie’stransportlockisreleased,itisalignedwiththetrackandloweredhydraulically,sothattherailswheelsareappliedtotherails.Therearofthevehicleisthusraised,whichfreestheroadwheelsfromcontactwiththeground.

3.Thevehicleisthenpulledbackwardsbythehydrostaticrailbogieuntiloneoftheroadwheelsfastensagainstasleeperorarail.

4.Theforwardlateralmovementbeamclosesttothetrackisextendedtowardstherails.Bothofthefrontliftingcylindersarethendeployedsimultaneouslyandliftthefrontendofthevehicle,thusfreeingthe

frontroadwheels.

5.Theforwardpartofthevehicleisthenmovedlaterallyviathehydrauliclateralmovementbeamsabout1msideways.Theforwardpartisthenloweredandtheroadwheelsthencontacttheground.

6.Thelateralmovementbeamclosesttothetrackisextendedagain.Theforwardendisliftedagainandmovedanotherapprox.1msidewaysclosertothetrack.

7.Theprocessinpoints3and5isrepeateduntiltheforwardendisdirectlyabovethetrackandthefrontrailwheelaxlecanbeloweredsothattherailwheelsareappliedtotherails.

8.Thelateralmovementbeamsarereturnedtotheirtransportpositionandthevehicleisnowtrack-bound.

Without a level crossing – parallel lateral movement with lateral movement beams.

1.Thevehicleisparkedclosetoandparallelwiththetrack.

2.Thetwo(frontandrear)liftingbeamsonthesideofthevehicleclosesttothetrackarefullyextended.

3.Thevehicleisliftedbyallfourliftingcylinderssimultaneouslyandisthenmovedapprox.1msidewaysandlowered.

4.Theprocessinpoints2and3isrepeateduntilthevehicleisdirectlyabovethetrack.

5.Thebogieandfrontrailwheelsareloweredsothattherailwheelsareappliedtothetrack.Theliftingbeamsarereturnedtotheirtransportpositionandthevehicleisnowfullytrack-bound.

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SRS Overhead Line Vehicles

SRS Bridge and Tunnel Inspection Vehicles


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SRS Recovery/Emergency Vehicles

SRS Rail Welding Vehicles

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SRS Crane Articulated Vehicles

SRS Flexible Vehicles


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SRShasacompletesalesandserviceorganisationthroughitsinternationalnetworkofagentsanddealers,SRSiscurrentlyrepresentedbyitsowndaughtercompaniesorviaagentsonmorethan20internationalmarkets.

SRSistheworldleaderwithintwo-waytechnologywithmorethan30yearsexperienceofdevelopment,designandmanufactureofvarioustypesoftwo-wayvehicle.Wemakecontinuousinvestmentsinproductdevelopmentofrailtravellingsystems,superstructuresandaccessories,incooperationwithourcustomers.Wehave,throughtheyears,deliveredtwo-wayvehiclesmanufacturedinaccordancewithspecificspecificationsandlocalregulations,tomanyinternationalmarkets.

SRS Sjölander’s international sales organisation

SRSisactiveentirelywithintherailwaysector,sowearewellawareofthespecificdemandsforrailwaysvehiclesthatmustalwaysbethebasisforourdesigns,materialselectionandmanufacturingmethods.Wecanthereforealwaysguaranteethehighestquality,bothtechnicallyandfunctionally,irrespectiveofifitisastandardsystemoraspeciallydesignedconcept.

Eveninthefuture,SRSwillcontinuetoworkwithproductdevelopmentthatpromotesmoreefficientworkingmethods,personalsafetyandthereliabilityofourtwo-wayvehicles,whichwillhelpourcustomersthroughincreasedproductivityandtherebyimprovedprofits.

HeadofficeSRS Sjölanders AB, Box 153, Klövervägen 5, 283 23 Osby SWEDENTel: +46 479 175 00, Fax: +46 479 136 70www.srssvabo.se

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SRSharenkomplettförsäljnings-ochservice-organisationgenomsittinternationellanätavagenterochåterförsäljareochSRSfinnsidagrepresenterademedegnadotterbolagellerviaagenterpåflerän20internationellamarknader.

SRSärledandeinomtvåvägsteknologinmedmerän30årserfarenhetavutveckling,konstruktionochtillverkningavolikatyperavtvåvägsfordon.Visatsarkontinuerligtpåproduktutvecklingavbåderäls-körningssystem,påbyggnaderochtillbehörisamarbetemedvårakunder.Vihargenomårenlevererattvåvägsfordontillverkadeienlighetmedgivnaspecifikationerochlokalabestämmelsertillmångainternationellamarknader.

SRS Sjölanders internationella försäljningsorganisation

SRSverkarenbartinomjärnvägssektorn,varförviärvälförtrognameddejärnvägsspecifikkravsomalltidmåsteliggatillgrundförkonstruktion,materialvalochtillverkningsmetoder.Vikandärföralltidgaranterahögstakvalitet,såvälteknisktsomfunktionsmässigt,oavsettomdetärstandardsystemellerspecialkonstrueradekoncept.

SRSkommeräveniframtidenattfortsättaarbetetmedproduktutvecklingsomfrämjareffektivarearbetsmetoder,personligsäkerhetochdriftsäkerhethosvårtvåvägsfordon,vilketkommervårakundertillgodogenomökadproduktivitetochdärmedförbättradekonomi.

HuvudkontorSRS Sjölanders AB, Box 153, SE-283 23 OSBY, Tel: 0479-175 00 Fax: 0479-175 [email protected] www.srssvabo.se

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road-rail · pdf filesrs sjölanders has more than 30 years experience ... changing so...

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