Taicang Zhongbo Railway Fastening Co., Ltd.  

Product Name: Tunnel Bolt/ Spear Tunnel Bolt for Tunnel Construction Model NO.: Tunnel bolt Type: Track Train Certification: AREMA, BS, ASTM, UIC, TB Product Material: Carbon Steel, 35#, 45#, Q235 Product Grade: 4.6, 4.8, 6.8, 8.8, 10.9 Usage: Railway Fastener Product Standard: DIN, ANSI, Arema, GB, GOST... Surface Coating: HDG, Black, Plain Oiled Free Sample: Yes, According Clients Order Delivery Time: Within 30 Days Payment: Tt/ L/C Trademark: ZBRF Transport Package: Wooden Cases Specification: SGS Origin: China Product Description high quality curve Spear tunnel Bolt for concrete ringApplication:Permanently fix concrete tunnel segmentMaterial: Carbon steel or stainless steel----Q235, 35#, 45#, 35CrMo, 42CrMo, 40Cr etc.Specification:Complete range from M16 to M30 diameters without Length limit.Finishing;plain(oiled),sherardized,hot dip galvanized, white zink plated, yellow zink plated, black, dacromet, geomet or others specified by the customershigh quality curve Spear tunnel Bolt for concrete ringTAICANGZHONGBORAILWAYFASTENINGisaleadingmanufacturerandsupplierofrailfasteninginChina.Wearededicatedonsupplyingmorebetterqualityrailfasteningstotheworldrailroad,andcontributingtoavailabilityofmoresafetyandconvenienttransit. ZHONGBOinitiallystartedfrom2004,to2011,itmovedtocurrentplace,ShaxiIndustryPark,Taicang,JiangsuProvince,eastofChina.The siteisabout23000squaremeters.Thereare320staffinthesite,ofwhich,thereareabout16technicalstaff,and112juniorandseniorskilledworkers;fortestingandproductionfacilities,therearemorethan260sets.Totalassetsisabout120millionsRMB,annualturnoverabout180millionsRMB.Theannualproductioncapabilityis36000tonsincludingrailfastenings,kindsofrailwaybolts,screwspikes. ZHONGBOiscertificatedwithISO9001:2008throughSGSaudit,andalsocertificatedbyChinaRailwayProductTestingandCertificationCenter-CRCC.Aswell,ourproductsarealsoapprovedbyworldclassrailroadcompany,suchasUPRR,BNSF,SBB,SRT,PNR,MTRetc. ThereisalsoaprofessionalR&DteaminZHONGBO.Thereare3seniornationalclassengineers,5engineersand8assistengineers,theyareworkinghardonR&Dandimprovementofrailfasteningsforeachfield.Wealreadyawarded18patentsonmetrorailwayfasteningsystem,tramwayfasteningsystems,andperformedwidely.WearealsothetestingbaseofSouthwestTransportationUniversityregardingtorailfasteningsystems;wealsocooperatedwithShanghaiTongjiUniversityregardingtheresearchanddevelopingaboutvibratingreduction,wavefrictionreductiontorailtracksfieldsandawardseveralleadingresults.high quality curve Spear tunnel Bolt for concrete ringOurproductsareperformingwidelyinmorethan50countriesintheworld,forexporting,therearemainlydividedfourareasasbelow:AmericamainlyinUSAand,Canada,MexicoandBrazil: WesupplyEtyperailfastening,W14railfasteningsystems,railclipstometro,tramwayfastenings,cranerailclips,trackboltsandjointbarforrailconnection,screwspikes,tieplatesandconcreteringsconnectionboltsfortunnels.TheyaremainlyaccordingtostandardsofAREMA,IFI,ASTM,UICandotherspecificationsfromclients.WestEuropeandAfricaareasmainlyinSpain,German,SouthAfricaandNigeria:WesupplyWrailfasteningsystems,springbladefasteningsystems,KPfasteningsystem,metrorailfastenings,fishplatesandfishplatebolts,sleeperscrews,lockspikes,spearboltsfortunnelsetc.TheyaremanufacturedtostandardofUIC,NF,DIN,BSandotherspecificationsrequestedbyclients.EastEuropeandMid-AsiaareamainlyinRussia,Kazakhstan,wesupply: Wrailfasteningsystems,KPfasteningsystem,railjointbarsandtrackbolts,trackspikesandtieplatestothisarea.WemanufactureandsupplyaccordingtostandardGOST,UIC,DINandotherspecificationsrequestedbyclients.AustraliaandSoutheastAsiaareamainlyinAustralia,Thailand,wesupply:Etyperailfastening,Wrailfastening,heavyhaulrailfastenings,metrorailfastenings,fishplateandbolts,trackspikes,turnoutaccessories,concreteringconnectionboltsetc.WemanufactureandsupplyaccordingtostandardBS,AS,JIS,UICandspecificationsrequestedbyclients. Since2008,wehavelaunchedindomesticmarketofChina,wesuppliedhighstrengthsleeperscrewandanchorboltsforhighspeedrailwayofChina.Byfollowing,wesuppliedtoturnoutfasteningstoVosslohCogifer,ChineseNewTurnoutTechnologies,ChinaRailwayTrackEquipmentNanjing.Aftereffortsof6years,ourrailfastenings,concreteconnectionboltswerewidelyusedinShanghaimetro,ShenzhenMetro,WuhanMetro,NanjingMetro,SuzhouMetro,Shijiazhuangmetro,LanzhouMetro,HefeimetroandGuangzhoumetro,andwewereawardedgoodreputation. In2012,basedontechnicalrequirementsoffasteningsfordomestictramway,wecombinedoursupplyexperienceoftramwayfasteningstoabroadmarket,andcooperatingwithSouthwestTransportation University,ChinaRailwayERYUANEngineering,wesuccessfullydevelopedtypeWA-1railfasteningsystemfortramway,andtestedinShanghaiTongjiUniversity,statedverygoodresults,especiallyinanti-loosingdesignfield,itisaleadinglevelinChina.In2013,thistypeofrailfasteningwasusedinPhraseI,andPhaseII,projectNanmingRiver,Guiyangcity,andwongoodreputationfromclients.In2014,thistypeofrailfasteningwillbealsousedinPhaseI,tramwayofZhuhaiproject. ZHONGBORAILWAYisconcentratingonResearchingandDevelopingofrailfastenings,wearelookingforwardtocooperatingwithmoretechnicalinstitutesabouttheR&Dofrailfastenings.Wealsowarmlywelcomeyoutousforinstruction,cooperationoranyotherbusinessdiscussion.Wehopewecandevelopebyworkingtogether,andoffermoreandmoresafety,environmentaltransittotheworld.Zhongbo Railway Fastening Company is a leading Chinese manufacturer of rail fastening and rail joint bar.Zhongbo, as a specialized rail fastener manufacturer, provides a complete line of products, including rail fastening, anchor, rail joint, rail clip, rail screw, anchor bolt, rail clamp plate, rail fishplate, and fishplate bolt for connecting rail tracks.We also make rail fastenings for crane rail and elevator guide rail, along with other related products. We manufacture according to GB/TB (Chinese national standards and railway standards), AREA, UIC, BS, DIN, ASTM, and AS standards.Our products are mainly made through hot forging.The threads of rail screw spikes are made by hot rolling with special threading machines.We produce metric threads, BS, BSW, TR thread, or round threads.