Information
242 Sandan-ro, Danwon-gu, Ansan-si, Gyeonggi-do, South Korea
+82 31-489-6229
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Overview
- Summary
- YUJIN Machinery is a company specializing in the development and production of braking systems for high-speed and general railway vehicles since its establishment in 1972. It functions as a railway vehicle component specialist, supplying core braking systems including brake control units, air supply units, and bogie brake systems, along with driving gears, pantographs, and couplers. Leveraging its expertise in railway compressors, the company expanded into the industrial compressor market in 2003, establishing itself as a technology leader. It has achieved world-class technology and quality by supplying products to prominent domestic and international railway vehicle manufacturers. Through continuous R&D and strengthening proprietary technologies, it has become a frontrunner in the railway vehicle industry.YUJIN Machinery is a company specializing in the development and production of braking systems for high-speed and general railway vehicles since its establishment in 1972. It functions as a railway vehicle component specialist, supplying core braking systems including brake control units, air supply units, and bogie brake systems, along with driving gears, pantographs, and couplers. Leveraging its expertise in railway compressors, the company expanded into the industrial compressor market in 2003, establishing itself as a technology leader. It has achieved world-class technology and quality by supplying products to prominent domestic and international railway vehicle manufacturers. Through continuous R&D and strengthening proprietary technologies, it has become a frontrunner in the railway vehicle industry.
- Key Products/Technologies
- Railway Vehicle Braking Systems: Comprehensive supply capabilities for brake control units, air supply units, and entire bogie brake systems. Its railway vehicle screw air compressors feature low vibration, low noise design, and a compact size due to an integrated oil tank and screw. These products are characterized by reduced maintenance requirements and a low Life Cycle Cost (LCC).Railway Vehicle Braking Systems: Comprehensive supply capabilities for brake control units, air supply units, and entire bogie brake systems. Its railway vehicle screw air compressors feature low vibration, low noise design, and a compact size due to an integrated oil tank and screw. These products are characterized by reduced maintenance requirements and a low Life Cycle Cost (LCC).
- Couplers: Development and supply of Type 10 Automatic Center Buffer Couplers for railway vehicles. Recent acquisition of TSI LOC&PAS certification for this coupler establishes a foundation for entry into the European market.Couplers: Development and supply of Type 10 Automatic Center Buffer Couplers for railway vehicles. Recent acquisition of TSI LOC&PAS certification for this coupler establishes a foundation for entry into the European market.
- Driving Gears: Products boasting robust durability and excellent power transmission performance, verified through tests considering vehicle load.Driving Gears: Products boasting robust durability and excellent power transmission performance, verified through tests considering vehicle load.
- Pantographs: A critical component for railway vehicles, ensuring stable power supply with advanced technological capabilities.Pantographs: A critical component for railway vehicles, ensuring stable power supply with advanced technological capabilities.
- Door Control Systems: Control systems designed for the safe and efficient boarding and alighting of railway passengers.Door Control Systems: Control systems designed for the safe and efficient boarding and alighting of railway passengers.
- Industrial Compressors: Lubricated and inverter-type screw compressors developed based on expertise in railway vehicle compressors. Possession of high-efficiency screw air-end technology with the latest tooth profile. Capabilities in self-design and production of oil-free compressors, embodying energy-saving, eco-friendly, and high-precision technologies.Industrial Compressors: Lubricated and inverter-type screw compressors developed based on expertise in railway vehicle compressors. Possession of high-efficiency screw air-end technology with the latest tooth profile. Capabilities in self-design and production of oil-free compressors, embodying energy-saving, eco-friendly, and high-precision technologies.
- Core Advantages
- Over 50 Years of Accumulated Experience and Technology: More than five decades of dedicated focus on the development and production of railway vehicle components, including high-speed rail, since its founding in 1972. Position as the largest specialized railway vehicle component manufacturer in Korea.Over 50 Years of Accumulated Experience and Technology: More than five decades of dedicated focus on the development and production of railway vehicle components, including high-speed rail, since its founding in 1972. Position as the largest specialized railway vehicle component manufacturer in Korea.
- Independent R&D Capabilities and Localization Leadership: Establishment of a corporate research institute in 1986, concentrating on new product development, localization, and securing proprietary technologies. Designation as a leading company for numerous national development projects, including Korean high-speed train braking systems and standard electric train braking systems. Pioneering the localization and standardization of advanced technologies such as oil-free air compressors, previously dominated by developed countries like Germany.Independent R&D Capabilities and Localization Leadership: Establishment of a corporate research institute in 1986, concentrating on new product development, localization, and securing proprietary technologies. Designation as a leading company for numerous national development projects, including Korean high-speed train braking systems and standard electric train braking systems. Pioneering the localization and standardization of advanced technologies such as oil-free air compressors, previously dominated by developed countries like Germany.
- World-Class Technology and Quality Certifications: Possession of world-class technology and quality in railway braking systems, couplers, driving gears, and pantographs. Acquisition of patents and certifications for industrial compressors in Japan and the USA, validating performance and quality comparable to products from advanced overseas manufacturers.World-Class Technology and Quality Certifications: Possession of world-class technology and quality in railway braking systems, couplers, driving gears, and pantographs. Acquisition of patents and certifications for industrial compressors in Japan and the USA, validating performance and quality comparable to products from advanced overseas manufacturers.
- Global Market Competitiveness and Expansion: A proven track record of supplying braking systems to leading domestic and international railway vehicle manufacturers. Recent acquisition of TSI certification for Type 10 Automatic Center Buffer Couplers, a first in Korea, establishing a foothold for entry into the European market. Establishment of overseas subsidiaries in Turkey, Brazil, and China for global production and sales network expansion.Global Market Competitiveness and Expansion: A proven track record of supplying braking systems to leading domestic and international railway vehicle manufacturers. Recent acquisition of TSI certification for Type 10 Automatic Center Buffer Couplers, a first in Korea, establishing a foothold for entry into the European market. Establishment of overseas subsidiaries in Turkey, Brazil, and China for global production and sales network expansion.
- Integrated Design and Verification System: In-house capabilities for design verification through advanced engineering analyses such as various simulations, structural/strength/thermal analyses. Implementation of a systematic approach for performance and quality validation through diverse tests including durability, environmental, vibration, and dynamometer testing.Integrated Design and Verification System: In-house capabilities for design verification through advanced engineering analyses such as various simulations, structural/strength/thermal analyses. Implementation of a systematic approach for performance and quality validation through diverse tests including durability, environmental, vibration, and dynamometer testing.
- Diversified Business Portfolio: Expansion of business scope into the industrial compressor market in addition to core railway vehicle components, ensuring a stable revenue structure.Diversified Business Portfolio: Expansion of business scope into the industrial compressor market in addition to core railway vehicle components, ensuring a stable revenue structure.
- Target Industrie
- High-Speed Railway Vehicle Industry: Supply of braking systems and couplers for high-speed railway vehicles, including EMU 250/300.High-Speed Railway Vehicle Industry: Supply of braking systems and couplers for high-speed railway vehicles, including EMU 250/300.
- General Railway Vehicle Industry: Provision of braking systems, driving gears, pantographs, couplers, and door control systems for various railway vehicles such as electric multiple units and light rail transit.General Railway Vehicle Industry: Provision of braking systems, driving gears, pantographs, couplers, and door control systems for various railway vehicles such as electric multiple units and light rail transit.
- Industrial Machinery and Equipment Industry: Supply of industrial screw compressors, developed based on railway compressor technology, to diverse industrial sectors.Industrial Machinery and Equipment Industry: Supply of industrial screw compressors, developed based on railway compressor technology, to diverse industrial sectors.
- Railway Vehicle Maintenance and Repair Industry: Engagement in light and heavy maintenance services for railway vehicles, contributing to safe operational infrastructure.Railway Vehicle Maintenance and Repair Industry: Engagement in light and heavy maintenance services for railway vehicles, contributing to safe operational infrastructure.
- Major Markets
- Japan, Philippines, Malaysia, Singapore, China (Suzhou Yujin subsidiary)Japan, Philippines, Malaysia, Singapore, China (Suzhou Yujin subsidiary)
- Turkey (Marmaray project, JSC Frensan A.S. establishment), Ukraine, Europe (market entry via TSI certification)Turkey (Marmaray project, JSC Frensan A.S. establishment), Ukraine, Europe (market entry via TSI certification)
- USA (patent and certification acquisition)USA (patent and certification acquisition)
- Brazil (Central EMU braking system export, Yujin Brazil subsidiary establishment), Ecuador (Quito project)Brazil (Central EMU braking system export, Yujin Brazil subsidiary establishment), Ecuador (Quito project)
- Certifications/Patents
- IRIS (International Railway Industry Standard) certification (2014, second domestic acquisition).IRIS (International Railway Industry Standard) certification (2014, second domestic acquisition).
- SIL4 certification (Brake Control System YB) (2011).SIL4 certification (Brake Control System YB) (2011).
- ISO 9001 certification (Yujin Electric Industry in 2010, likely also held by Yujin Machinery).ISO 9001 certification (Yujin Electric Industry in 2010, likely also held by Yujin Machinery).
- ISO 14001 certification (2017).ISO 14001 certification (2017).
- ISO/TS 22163 certification.ISO/TS 22163 certification.
- TSI LOC&PAS certification for Type 10 Automatic Center Buffer Coupler (January 2026, first in Korea).TSI LOC&PAS certification for Type 10 Automatic Center Buffer Coupler (January 2026, first in Korea).
- Green Technology certification (Ministry of Land, Transport and Maritime Affairs, 2012).Green Technology certification (Ministry of Land, Transport and Maritime Affairs, 2012).
- Parts and Materials Reliability Certification (Ministry of Trade, Industry and Energy, Korean Agency for Technology and Standards, 2006).Parts and Materials Reliability Certification (Ministry of Trade, Industry and Energy, Korean Agency for Technology and Standards, 2006).
- Japanese and U.S. patents and certifications related to industrial compressors.Japanese and U.S. patents and certifications related to industrial compressors.
- Recognition as a Corporate R&D Institute (Ministry of Science and Technology No. 565, 1985; Korea Industrial Technology Association, 1996).Recognition as a Corporate R&D Institute (Ministry of Science and Technology No. 565, 1985; Korea Industrial Technology Association, 1996).
- Multiple patents and design registrations (as indicated on the 'Technology Status' page).Multiple patents and design registrations (as indicated on the 'Technology Status' page).
Introduction
Location
242 Sandan-ro, Danwon-gu, Ansan-si, Gyeonggi-do, South Korea
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