Justek Inc. is a company that pioneered the linear motor manufacturing business in Korea in 1999, developing and commercializing essential core components and systems for motion control in semiconductor, flat panel display production equipment, and high-precision printing machinery. The company provides key solutions across various industries, including semiconductor and display processes, industrial robots, and artificial satellites, through its ultra-precision motion control technology. It contributes to the development of the domestic electronic materials industry by offering high-performance linear motors, rotary DD motors, motion stages, servo drivers, and multi-axis controllers. Justek possesses the capability to mass-produce total solutions from nano-level ultra-precision motors and control technologies to various components, modules, and systems integrated into motion solutions.JustekInc.isacompanythatpioneeredthelinearmotormanufacturingbusinessinKoreain1999,developingandcommercializingessentialcorecomponentsandsystemsformotioncontrolinsemiconductor,flatpaneldisplayproductionequipment,andhigh-precisionprintingmachinery.Thecompanyprovideskeysolutionsacrossvariousindustries,includingsemiconductoranddisplayprocesses,industrialrobots,andartificialsatellites,throughitsultra-precisionmotioncontroltechnology.Itcontributestothedevelopmentofthedomesticelectronicmaterialsindustrybyofferinghigh-performancelinearmotors,rotaryDDmotors,motionstages,servodrivers,andmulti-axiscontrollers.Justekpossessesthecapabilitytomass-producetotalsolutionsfromnano-levelultra-precisionmotorsandcontroltechnologiestovariouscomponents,modules,andsystemsintegratedintomotionsolutions.
Key Products/TechnologiesKeyProducts/Technologies
Linear Motors: Coreless Type (model names JTKL5113A, JTKL5126A, JTKL5139A, JTKL5153A, JTKL5179A, JTKL5113, JTKL1506B, JTKL3610, JTKL3619, JTKL3629, JTKL3638, JTKL5113HB, JTKL5126HB, JTKL5139HB, JTKL5153HB, JTKL5179HB, JTKL5153HBS, JTKL5513, JTKL5526, JTKL5539, JTKL5553, JTKL5579, JTKL5553S) are suitable for precise motion due to zero cogging force, with a maximum thrust range of 30N~3000N, ideal for medium-small load high-speed repetitive movements. Iron-Core Type (model names JTKC3006A, JTKC3012A, JTKC3025A, JTKC5606A, JTKC5612A, JTKC5625A, JTKC5638A, JTKC5625, JTKC5650, JTKCA025, JTKCA050) minimizes cogging force through proprietary design, generating high thrust relative to its volume, with a maximum thrust range of 78N~2400N. Arc Motors (model names JTKA3012A, JTKA3025A, JTKA4235, JTKA4270, JTKA6597) are also part of the linear motor product line. The company also develops special-purpose products such as ceramic air-bearing linear motors and waterproof linear motors.LinearMotors:CorelessType(modelnamesJTKL5113A,JTKL5126A,JTKL5139A,JTKL5153A,JTKL5179A,JTKL5113,JTKL1506B,JTKL3610,JTKL3619,JTKL3629,JTKL3638,JTKL5113HB,JTKL5126HB,JTKL5139HB,JTKL5153HB,JTKL5179HB,JTKL5153HBS,JTKL5513,JTKL5526,JTKL5539,JTKL5553,JTKL5579,JTKL5553S)aresuitableforprecisemotionduetozerocoggingforce,withamaximumthrustrangeof30N~3000N,idealformedium-smallloadhigh-speedrepetitivemovements.Iron-CoreType(modelnamesJTKC3006A,JTKC3012A,JTKC3025A,JTKC5606A,JTKC5612A,JTKC5625A,JTKC5638A,JTKC5625,JTKC5650,JTKCA025,JTKCA050)minimizescoggingforcethroughproprietarydesign,generatinghighthrustrelativetoitsvolume,withamaximumthrustrangeof78N~2400N.ArcMotors(modelnamesJTKA3012A,JTKA3025A,JTKA4235,JTKA4270,JTKA6597)arealsopartofthelinearmotorproductline.Thecompanyalsodevelopsspecial-purposeproductssuchasceramicair-bearinglinearmotorsandwaterprooflinearmotors.
Rotary DD Motors: Various models including JTR11 Series (JTR1106, JTR1112, JTR1118), JTR15 Series (JTR1501E, JTR1503E, JTR1505E, JTR1508E, JTR15T), JTR16 Series (JTR1604, JTR1608), JTR24 Series (JTR2403, JTR2408, JTR2413), and JTR30 Series (JTR3015, JTR3030, JTR3045). These are direct-drive rotary motors suitable for high torque and high resolution systems. The JTR24 series, with an outer diameter of 240mm and a hollow of 52mm, features a slim design for high space efficiency and achieves high precision through the adoption of optical encoders. The JTR15T offers a cost-effective solution with high space efficiency due to its slim design, flange-type operation from the top, and smooth, constant speed rotation with zero cogging.RotaryDDMotors:VariousmodelsincludingJTR11Series(JTR1106,JTR1112,JTR1118),JTR15Series(JTR1501E,JTR1503E,JTR1505E,JTR1508E,JTR15T),JTR16Series(JTR1604,JTR1608),JTR24Series(JTR2403,JTR2408,JTR2413),andJTR30Series(JTR3015,JTR3030,JTR3045).Thesearedirect-driverotarymotorssuitableforhightorqueandhighresolutionsystems.TheJTR24series,withanouterdiameterof240mmandahollowof52mm,featuresaslimdesignforhighspaceefficiencyandachieveshighprecisionthroughtheadoptionofopticalencoders.TheJTR15Toffersacost-effectivesolutionwithhighspaceefficiencyduetoitsslimdesign,flange-typeoperationfromthetop,andsmooth,constantspeedrotationwithzerocogging.
Motion Stages: Development of multi-axis motion stages for ultra-precision positioning systems, including Mini Stages (JSAH20, JSAH40, JSAH60, JSAH80, JSAH100, JSAH120), Vertical Precision Positioning Stages (JTMZ10, JTMZ20), Frame Base Gantry Stages (ACPโ ก400400, ACPโ ก500500, ACPโ ก600600, ACPโ ข 600ร400, ACPโ ข(D) 600ร400), Air Bearing Stages, and Aligning Stages. Frame Base Gantry Stages, improved for reduced weight, cost, and lead time without a granite base, are suitable for high-speed repair and inspection equipment. The company provides various types of stages applicable to PCB, FPD, semiconductor production equipment, and inspection and scanning systems.MotionStages:Developmentofmulti-axismotionstagesforultra-precisionpositioningsystems,includingMiniStages(JSAH20,JSAH40,JSAH60,JSAH80,JSAH100,JSAH120),VerticalPrecisionPositioningStages(JTMZ10,JTMZ20),FrameBaseGantryStages(ACPโ ก400400,ACPโ ก500500,ACPโ ก600600,ACPโ ข600ร400,ACPโ ข(D)600ร400),AirBearingStages,andAligningStages.FrameBaseGantryStages,improvedforreducedweight,cost,andleadtimewithoutagranitebase,aresuitableforhigh-speedrepairandinspectionequipment.ThecompanyprovidesvarioustypesofstagesapplicabletoPCB,FPD,semiconductorproductionequipment,andinspectionandscanningsystems.
Servo Drivers and Multi-axis Controllers: Servo drivers include JSMD-02, JSMD-03, JSMD-02D, JSMD-03D, JSMD-04D models. These are DSP-based full-digital servo drives optimized for linear motors, offering high-performance control capabilities. Precision motion control is achieved through digital current control based on space voltage vectors. The company also possesses the capability to develop and commercialize multi-axis controllers essential for high-precision motion control.ServoDriversandMulti-axisControllers:ServodriversincludeJSMD-02,JSMD-03,JSMD-02D,JSMD-03D,JSMD-04Dmodels.TheseareDSP-basedfull-digitalservodrivesoptimizedforlinearmotors,offeringhigh-performancecontrolcapabilities.Precisionmotioncontrolisachievedthroughdigitalcurrentcontrolbasedonspacevoltagevectors.Thecompanyalsopossessesthecapabilitytodevelopandcommercializemulti-axiscontrollersessentialforhigh-precisionmotioncontrol.
Core AdvantagesCoreAdvantages
Pioneering and Localization of Linear Motor Technology in Korea: The company initiated the linear motor manufacturing business in Korea in 1999, establishing itself as a leader in this field. It successfully localized ultra-precision nano-level motion stages for semiconductor and display mass production processes, which were highly dependent on foreign technology. The successful localization of satellite attitude control motors, subject to ITAR regulations, contributes to technological self-reliance and enhances national competitiveness. This plays a pivotal role in the development of the domestic electronic materials industry.PioneeringandLocalizationofLinearMotorTechnologyinKorea:ThecompanyinitiatedthelinearmotormanufacturingbusinessinKoreain1999,establishingitselfasaleaderinthisfield.Itsuccessfullylocalizedultra-precisionnano-levelmotionstagesforsemiconductoranddisplaymassproductionprocesses,whichwerehighlydependentonforeigntechnology.Thesuccessfullocalizationofsatelliteattitudecontrolmotors,subjecttoITARregulations,contributestotechnologicalself-relianceandenhancesnationalcompetitiveness.Thisplaysapivotalroleinthedevelopmentofthedomesticelectronicmaterialsindustry.
Superior Ultra-precision Motion Control Technology: Capability to mass-produce total solutions from nano-level ultra-precision motors and control technologies to various components, modules, and systems integrated into motion solutions. Focus on developing advanced technologies in digital control and measurement, integrated with micro and nano-scale optical technologies, securing a technological lead in motion drive and application systems. Possession of core technology that precisely controls the movement of machinery and equipment, determining process productivity and quality. Pursuit of stable supply of high-speed, high-precision, and high-reliability products.SuperiorUltra-precisionMotionControlTechnology:Capabilitytomass-producetotalsolutionsfromnano-levelultra-precisionmotorsandcontroltechnologiestovariouscomponents,modules,andsystemsintegratedintomotionsolutions.Focusondevelopingadvancedtechnologiesindigitalcontrolandmeasurement,integratedwithmicroandnano-scaleopticaltechnologies,securingatechnologicalleadinmotiondriveandapplicationsystems.Possessionofcoretechnologythatpreciselycontrolsthemovementofmachineryandequipment,determiningprocessproductivityandquality.Pursuitofstablesupplyofhigh-speed,high-precision,andhigh-reliabilityproducts.
Versatile Application and Expandability in Advanced Industries: Ability to supply core solutions to various advanced industrial sectors, including semiconductors, displays, industrial robots, and aerospace. Expansion of technology application scope into high-value-added space industries, such as satellite attitude control motors, planetary rover motors, and space laser communication. Anticipated increase in product supply for semiconductor post-processing steps due to growing demand for artificial intelligence (AI) and High Bandwidth Memory (HBM). Potential for expanding motion system applications in response to demand for industrial robots and automation.VersatileApplicationandExpandabilityinAdvancedIndustries:Abilitytosupplycoresolutionstovariousadvancedindustrialsectors,includingsemiconductors,displays,industrialrobots,andaerospace.Expansionoftechnologyapplicationscopeintohigh-value-addedspaceindustries,suchassatelliteattitudecontrolmotors,planetaryrovermotors,andspacelasercommunication.Anticipatedincreaseinproductsupplyforsemiconductorpost-processingstepsduetogrowingdemandforartificialintelligence(AI)andHighBandwidthMemory(HBM).Potentialforexpandingmotionsystemapplicationsinresponsetodemandforindustrialrobotsandautomation.
Global Market Experience and Customer Collaboration System: Expertise gained from directly installing and operating products in production lines of leading domestic and international companies in Korea, Japan, the USA, Israel, and Taiwan. Based on extensive experience, the company is fully committed to securing technological superiority in the global high-speed, high-precision motion drive equipment market. Strong support for engineering collaboration with customers, facilitating timely development of new equipment and application systems, and strengthening partnerships for enhanced customer satisfaction. Establishment of cooperative relationships with major clients such as Samsung Electronics, Samsung SDI, and LG-Phillips.GlobalMarketExperienceandCustomerCollaborationSystem:ExpertisegainedfromdirectlyinstallingandoperatingproductsinproductionlinesofleadingdomesticandinternationalcompaniesinKorea,Japan,theUSA,Israel,andTaiwan.Basedonextensiveexperience,thecompanyisfullycommittedtosecuringtechnologicalsuperiorityintheglobalhigh-speed,high-precisionmotiondriveequipmentmarket.Strongsupportforengineeringcollaborationwithcustomers,facilitatingtimelydevelopmentofnewequipmentandapplicationsystems,andstrengtheningpartnershipsforenhancedcustomersatisfaction.EstablishmentofcooperativerelationshipswithmajorclientssuchasSamsungElectronics,SamsungSDI,andLG-Phillips.