JIHYD is a technology-oriented company specializing in the development and production of high-precision hydraulic equipment for heavy construction machinery, agricultural machinery, and special vehicles, established in 1990. It offers main pumps, travel motors, hydrostatic transmissions (HST), and various hydraulic components and industrial equipment as its core products. The company has consistently evolved through continuous innovation and business diversification, earning high technical competitiveness in both domestic and international markets. It leads the localization of critical hydraulic components, which were previously import-reliant, contributing to the advancement of domestic industries.JIHYDisatechnology-orientedcompanyspecializinginthedevelopmentandproductionofhigh-precisionhydraulicequipmentforheavyconstructionmachinery,agriculturalmachinery,andspecialvehicles,establishedin1990.Itoffersmainpumps,travelmotors,hydrostatictransmissions(HST),andvarioushydrauliccomponentsandindustrialequipmentasitscoreproducts.Thecompanyhasconsistentlyevolvedthroughcontinuousinnovationandbusinessdiversification,earninghightechnicalcompetitivenessinbothdomesticandinternationalmarkets.Itleadsthelocalizationofcriticalhydrauliccomponents,whichwerepreviouslyimport-reliant,contributingtotheadvancementofdomesticindustries.
Key Products/TechnologiesKeyProducts/Technologies
HST Ass'y: Offers various models including JHC021, JHR021, JHC030, JHH040, JHC037, JHW040, JHC040, JHC042, JHC045, JHT018/020, JHR021/023, JHC021/023, JHC030/037/042, JHI037, JHD040/045, JHH040/045, JHT045-H, JHE045-W. Development of POTARY PARTS for agricultural machinery HST and securing technology for high efficiency and durability.HSTAss'y:OffersvariousmodelsincludingJHC021,JHR021,JHC030,JHH040,JHC037,JHW040,JHC040,JHC042,JHC045,JHT018/020,JHR021/023,JHC021/023,JHC030/037/042,JHI037,JHD040/045,JHH040/045,JHT045-H,JHE045-W.DevelopmentofPOTARYPARTSforagriculturalmachineryHSTandsecuringtechnologyforhighefficiencyanddurability.
PISTON PUMP ASS'Y: Provides various models such as JP2D25, JP2D28, JP2D36, J3SP36, J3V63DT, J3V112DT, J3V140DT, J3V180DT, J5V80DTP, J5V140DTP, J5V200DTP, J4VG125, HPV145(EX300-5). The J3V63DT model features a maximum displacement of 63x2 cc/rev, a rated pressure of 350 kgf/cm² (34.3 MPa), and a maximum pressure of 400 kgf/cm² (39.2 MPa).PISTONPUMPASS'Y:ProvidesvariousmodelssuchasJP2D25,JP2D28,JP2D36,J3SP36,J3V63DT,J3V112DT,J3V140DT,J3V180DT,J5V80DTP,J5V140DTP,J5V200DTP,J4VG125,HPV145(EX300-5).TheJ3V63DTmodelfeaturesamaximumdisplacementof63x2cc/rev,aratedpressureof350kgf/cm²(34.3MPa),andamaximumpressureof400kgf/cm²(39.2MPa).
Travel Motor Ass'y: Development and supply of travel motors for excavators, available in various specifications for 5 to 22-ton machines. Established a product lineup including models like JT02VN, JT02VJ, JT03VJ, JT04VK, JT04VK-N, JT05VT, JT08VK, JT08VT, JT14VK, JT14VT, JT14VI, JT22VD.TravelMotorAss'y:Developmentandsupplyoftravelmotorsforexcavators,availableinvariousspecificationsfor5to22-tonmachines.EstablishedaproductlineupincludingmodelslikeJT02VN,JT02VJ,JT03VJ,JT04VK,JT04VK-N,JT05VT,JT08VK,JT08VT,JT14VK,JT14VT,JT14VI,JT22VD.
Swing Motor Ass'y: Development of compact type swing motors for excavators with reliable performance and low-noise reducers.SwingMotorAss'y:Developmentofcompacttypeswingmotorsforexcavatorswithreliableperformanceandlow-noisereducers.
JSW Ass'y: A product family including models such as JSW020, JSW025, JSW036, JSW047, JSW058/063.JSWAss'y:AproductfamilyincludingmodelssuchasJSW020,JSW025,JSW036,JSW047,JSW058/063.
Hydraulic Components and Spare Parts: Offers a range of parts including Main Pump Spare Parts, Swing Motor Spare Parts, Travel Motor Spare Parts, HST Parts, and Gear Reduction components.HydraulicComponentsandSpareParts:OffersarangeofpartsincludingMainPumpSpareParts,SwingMotorSpareParts,TravelMotorSpareParts,HSTParts,andGearReductioncomponents.
Core Technologies: Successful integration of electronic control technology into hydraulic systems, providing innovative solutions that maximize equipment efficiency, precision, and safety. Possession of technology delivering stable performance and high durability even in extreme high-pressure and heavy-load environments. Efforts in developing and manufacturing comprehensive performance testing equipment to ensure product reliability and quality.CoreTechnologies:Successfulintegrationofelectroniccontroltechnologyintohydraulicsystems,providinginnovativesolutionsthatmaximizeequipmentefficiency,precision,andsafety.Possessionoftechnologydeliveringstableperformanceandhighdurabilityeveninextremehigh-pressureandheavy-loadenvironments.Effortsindevelopingandmanufacturingcomprehensiveperformancetestingequipmenttoensureproductreliabilityandquality.
Core AdvantagesCoreAdvantages
Securing a differentiated competitive edge through the development and production of high-precision hydraulic equipment based on proprietary core technologies.Securingadifferentiatedcompetitiveedgethroughthedevelopmentandproductionofhigh-precisionhydraulicequipmentbasedonproprietarycoretechnologies.
Capability to provide innovative solutions by successfully integrating electronic control technology into hydraulic systems, maximizing equipment efficiency, precision, and safety.Capabilitytoprovideinnovativesolutionsbysuccessfullyintegratingelectroniccontroltechnologyintohydraulicsystems,maximizingequipmentefficiency,precision,andsafety.
Leading the localization of critical hydraulic components, which were highly dependent on imports, thereby contributing to strengthening the competitiveness of domestic construction and agricultural machinery industries.Leadingthelocalizationofcriticalhydrauliccomponents,whichwerehighlydependentonimports,therebycontributingtostrengtheningthecompetitivenessofdomesticconstructionandagriculturalmachineryindustries.
Establishing a broad product lineup of hydraulic components and systems applicable to various heavy equipment and agricultural machinery, ranging from 5 to 50 tons, including excavators and tractors.Establishingabroadproductlineupofhydrauliccomponentsandsystemsapplicabletovariousheavyequipmentandagriculturalmachinery,rangingfrom5to50tons,includingexcavatorsandtractors.
Ability to supply customized products optimized for customer requirements, coupled with an excellent quality management system for high-quality production and customer satisfaction.Abilitytosupplycustomizedproductsoptimizedforcustomerrequirements,coupledwithanexcellentqualitymanagementsystemforhigh-qualityproductionandcustomersatisfaction.
Demonstrated technical expertise and commercialization capabilities through numerous patents (7 cases) and government projects (15 cases).Demonstratedtechnicalexpertiseandcommercializationcapabilitiesthroughnumerouspatents(7cases)andgovernmentprojects(15cases).
Efforts in developing and manufacturing proprietary comprehensive performance testing equipment to enhance the reliability and ensure high quality of motors and pumps.Effortsindevelopingandmanufacturingproprietarycomprehensiveperformancetestingequipmenttoenhancethereliabilityandensurehighqualityofmotorsandpumps.
A stable growth foundation built on continuous innovation and business diversification since its establishment in 1990.Astablegrowthfoundationbuiltoncontinuousinnovationandbusinessdiversificationsinceitsestablishmentin1990.
Target IndustrieTargetIndustrie
Heavy Construction Equipment Industry: Power transmission and control systems for large construction equipment such as excavators and concrete pump trucks.HeavyConstructionEquipmentIndustry:Powertransmissionandcontrolsystemsforlargeconstructionequipmentsuchasexcavatorsandconcretepumptrucks.
Agricultural Machinery Industry: Hydrostatic transmission (HST) systems for improving operational convenience and safety in agricultural machinery like tractors.AgriculturalMachineryIndustry:Hydrostatictransmission(HST)systemsforimprovingoperationalconvenienceandsafetyinagriculturalmachineryliketractors.
Special Vehicle Industry: Core hydraulic components and systems for various special-purpose vehicles.SpecialVehicleIndustry:Corehydrauliccomponentsandsystemsforvariousspecial-purposevehicles.
Industrial Equipment Industry: Hydraulic components and equipment for general industrial applications.IndustrialEquipmentIndustry:Hydrauliccomponentsandequipmentforgeneralindustrialapplications.
Major MarketsMajorMarkets
Certifications/PatentsCertifications/Patents
Possession of 7 patents.Possessionof7patents.
Track record of 15 government projects.Trackrecordof15governmentprojects.
INNO-BIZ Company Certification (April 2007).INNO-BIZCompanyCertification(April2007).
Corporate Research Institute Certification (April 2010).CorporateResearchInstituteCertification(April2010).
Selected as an AEO (Authorized Economic Operator) by Korea Customs Service (April 2015).SelectedasanAEO(AuthorizedEconomicOperator)byKoreaCustomsService(April2015).
Selected as a Global Hidden Champion by the Small and Medium Business Administration (August 2015).SelectedasaGlobalHiddenChampionbytheSmallandMediumBusinessAdministration(August2015).
Technology Capability Excellent Company Certificate from Korea Enterprise Data (May 2018).TechnologyCapabilityExcellentCompanyCertificatefromKoreaEnterpriseData(May2018).
Environmental Management System Certificate.EnvironmentalManagementSystemCertificate.