Stone Crushing Machine

4PGGFour-rollCrusher ShanghaiJiansheLuqiaoMachineryCo.,Ltd.isaleadingstonecrushingmachineandscreeningequipmentsmanufacturerinChina,providesstonecrushingmachineandscreeningequipmentsforvariousindustriessuchasmining,buildingmaterial,metallurgy,environmentalprotection,transportation,chemistry,energyandsoon. MainTechnicalParameter[Four-rollCrusher] Rollerdiameter:upperroll1200mm lowerroll1200mm Rollerlength:upperroll1000mm lowerroll1000mm Feedingsize:≤75mm(spacebetweenupperroll10) Feedingsize:≤100mm(spacebetweenupperroll40) Dischargingsize:38mm Rollerspeed:upperroll83,lowerroll153r/min Crushingcapacity:3555t/h PowerupperrollYD280S-8/440/55kw740/1480r/min lowerrollY315S-675kw980r/min Weight68670kg Applications&SuitableRangeofFour-rollCrusher 4PGG1200×1000four-rollcrusherismainlyusedtocrushmetallurgicalcokingcoal,andalsocancrushbigparticlesizematerialbyadjustingthespaceofupperandlowerroll.Itsproperties:compactstructure,smalloccupationofland,largecrushingratio(18:1)andhighproduction. OperationalPrincipleofFour-rollCrusher Four-rollcrusheristocrushmaterialbytwopairsofrollerswhichrotateinoppositedirectionandproducepressingandshearingforce.Whenthematerialgotintotheuppercrushingcavity,bytheforceofrotatingroller,itisenforcedtopassthetworollerstobepressedandcutbyrollers,then,itbeginstobecrushed.Smallgrainsaftercrushingisalongthetangentdirectionofrollers,throughtworollersofdowncavity,andthrownout.Bigsizedgrainswhichsurpassthespacewillgoonbeingcrushed. Maincomponentsandstructuralperformance[Four-rollCrusher] Four-rollcrushermainlyconsistsofmainframe,rollparts,drivingparts,bumpers,hydraulicplants. Rollersoffour-rollcrushercanbedividedintoactiverolleranddrivenroller.Upperanddownrollersarebothfixedfirmlyonmainframeofmachine. Activerollsarefixedupwhiledrivenrollsareremovableanditsbackpartisequippedwithhydrauliccylinder.Balancedcrushingforceandpassingthroughofoverhardmaterialarebothfinishedbyhydrauliccylinder. Rollingleatheronrollerspartsaremouldedbyalloysteelwithheatprocessingtoimprovestrengthandhardness. Bearingbaseofrollhasconnectorandisconnectedtooilpotwithscrewcover.Lubricatingconditionmustbecheckedregularly.Alllubricatingoilshoulddependonplacesandtemperature,generallyusecalcium-basedandcalcium-sodiumgrease,thegreaseinbearingbaseshouldtakeupitsvolumeof50%,andchangeevery3-6months. Gearboxoffour-rollcrusheradoptsmedium-loadindustrialgearlubricantsN220orN320(VG220,Mobil630orVG320,Mobil632).Whenperipheralspeedofgearishigh,ortemperatureisunder35°C,orlubricatedbycycleoil,useN220;peripheralspeedofgearislow,ortemperatureisbetween3550°C,useN320;Lubricantsshouldbewarm-upbeforestartupwhenthetemperatureislowerthan-5°C.Newlyusedgearboxshouldbechangedoilafter7-14days,andafterwards,changeonceevery3-6monthsaccordingtousage.