IMJINST, The Republic of Korea - Komachine Supplier Profile and Product List

- IMJINST Co., Ltd. is a specialized nut company established in 1972, focusing on special nuts and cold forging products. The company developed the Saper Lock Nut, recognized as one of the world's top three anti-loosening technologies, earning acclaim in domestic and international markets. It provides innovative fastening solutions across various industrial sectors, including railways, heavy equipment, and renewable energy.IMJINST Co., Ltd. is a specialized nut company established in 1972, focusing on special nuts and cold forging products. The company developed the Saper Lock Nut, recognized as one of the world's top three anti-loosening technologies, earning acclaim in domestic and international markets. It provides innovative fastening solutions across various industrial sectors, including railways, heavy equipment, and renewable energy.
- Key product lines include anti-loosening nut series such as Saper Lock Nut, Saper Lock S Nut, and Saper Lock P Nut.Key product lines include anti-loosening nut series such as Saper Lock Nut, Saper Lock S Nut, and Saper Lock P Nut.
- The company also produces a wide range of nut products, including anti-loosening washers, slim nuts, spring nuts, hanger nuts, normal nuts, square nuts, hex nuts, and forged nuts.The company also produces a wide range of nut products, including anti-loosening washers, slim nuts, spring nuts, hanger nuts, normal nuts, square nuts, hex nuts, and forged nuts.
- Saper Lock Nuts are available in SP Series, S Series, and ILW Series models, supporting sizes from M5 to M80.Saper Lock Nuts are available in SP Series, S Series, and ILW Series models, supporting sizes from M5 to M80.
- The core technology involves a proprietary 3D spring insertion technique, preventing loosening even under extreme shock and vibration.The core technology involves a proprietary 3D spring insertion technique, preventing loosening even under extreme shock and vibration.
- This technology allows for over 30 reuses without bolt thread damage and offers more than 10 times faster tightening and loosening operations compared to existing foreign products.This technology allows for over 30 reuses without bolt thread damage and offers more than 10 times faster tightening and loosening operations compared to existing foreign products.
- The "Elastic Expansion Nut" technology demonstrated no loosening during 30,000 cycles in KS W ISO 7481 vibration impact tests.The "Elastic Expansion Nut" technology demonstrated no loosening during 30,000 cycles in KS W ISO 7481 vibration impact tests.
- The company possesses capabilities in cold forging technology for producing high-quality nut products.The company possesses capabilities in cold forging technology for producing high-quality nut products.
- Over 40 years of accumulated specialized technical expertise, focusing solely on nut production.Over 40 years of accumulated specialized technical expertise, focusing solely on nut production.
- Securing technological superiority through the development of the Saper Lock Nut, recognized as one of the world's top three anti-loosening technologies.Securing technological superiority through the development of the Saper Lock Nut, recognized as one of the world's top three anti-loosening technologies.
- Superior product performance with a 3D spring insertion technology, ensuring complete anti-loosening even in extreme vibration and shock environments.Superior product performance with a 3D spring insertion technology, ensuring complete anti-loosening even in extreme vibration and shock environments.
- Providing economic efficiency and improved productivity with over 30 reuses and 10 times faster operation compared to existing foreign products.Providing economic efficiency and improved productivity with over 30 reuses and 10 times faster operation compared to existing foreign products.
- Contribution to import substitution, with the successful domestic development of anti-loosening nuts potentially creating hundreds of billions of won in annual savings.Contribution to import substitution, with the successful domestic development of anti-loosening nuts potentially creating hundreds of billions of won in annual savings.
- Versatility for application in a wide range of industries, including railways, heavy equipment, renewable energy, and shipbuilding.Versatility for application in a wide range of industries, including railways, heavy equipment, renewable energy, and shipbuilding.
- Demonstrated product reliability through numerous official certifications, including National Excellent Product (NEP) certification and ABS class approval.Demonstrated product reliability through numerous official certifications, including National Excellent Product (NEP) certification and ABS class approval.
- Strong innovation capabilities through continuous R&D investment and possession of multiple domestic and international patents.Strong innovation capabilities through continuous R&D investment and possession of multiple domestic and international patents.
- Major application industries include civil engineering and heavy equipment, where safety is paramount.Major application industries include civil engineering and heavy equipment, where safety is paramount.
- Supply of critical components to the railway industry, including high-speed rail construction projects.Supply of critical components to the railway industry, including high-speed rail construction projects.
- Meeting the demand for special nuts in renewable energy generation sectors such as wind power, nuclear power, and solar power.Meeting the demand for special nuts in renewable energy generation sectors such as wind power, nuclear power, and solar power.
- Contribution to the shipbuilding and marine industry through the supply of anti-loosening nuts for LNG carriers.Contribution to the shipbuilding and marine industry through the supply of anti-loosening nuts for LNG carriers.
- Provision of essential fastening solutions to the defense industry and industrial machinery sectors.Provision of essential fastening solutions to the defense industry and industrial machinery sectors.
- Utilization in various general industrial fields, including aluminum profile assembly, piping, and hydraulic systems.Utilization in various general industrial fields, including aluminum profile assembly, piping, and hydraulic systems.
- China, Japan, VietnamChina, Japan, Vietnam
- Austria, TurkeyAustria, Turkey
- Possession of numerous domestic and international patents, including 4 international patents, 2 PCT applications, and 3 domestic patents, securing intellectual property rights.Possession of numerous domestic and international patents, including 4 international patents, 2 PCT applications, and 3 domestic patents, securing intellectual property rights.
- Ownership of rights to key technologies such as the Saper Lock Nut patent, aluminum profile spring nut patent, and anti-theft cable forming device patent.Ownership of rights to key technologies such as the Saper Lock Nut patent, aluminum profile spring nut patent, and anti-theft cable forming device patent.
- Protection of technology in overseas markets through Chinese and Japanese patent certificates.Protection of technology in overseas markets through Chinese and Japanese patent certificates.
- Acquisition of credible certifications such as National Excellent Product (NEP) certification from the Ministry of Trade, Industry and Energy, and registration on the Korea Expressway Corporation Technology Market (2021-0036).Acquisition of credible certifications such as National Excellent Product (NEP) certification from the Ministry of Trade, Industry and Energy, and registration on the Korea Expressway Corporation Technology Market (2021-0036).
- Enhancement of quality reliability through ISO 9001 quality management system certification and ABS class approval (design, manufacturing).Enhancement of quality reliability through ISO 9001 quality management system certification and ABS class approval (design, manufacturing).
- Strengthening continuous technology development and innovation capabilities through the establishment of a corporate research institute in 2013.Strengthening continuous technology development and innovation capabilities through the establishment of a corporate research institute in 2013.
- Possession of various corporate competitiveness certifications, including Inno-Biz confirmation, KEPCO export company certification, Root Company confirmation, and Root Technology Specialist Company designation certificate.Possession of various corporate competitiveness certifications, including Inno-Biz confirmation, KEPCO export company certification, Root Company confirmation, and Root Technology Specialist Company designation certificate.
- Numerous awards, including the 2018 Minister of Trade, Industry and Energy Commendation (twice), Korea Rail Network Authority Chairman's Award, Korea Invention Patent Exhibition Award, and Excellent SME Product Award.Numerous awards, including the 2018 Minister of Trade, Industry and Energy Commendation (twice), Korea Rail Network Authority Chairman's Award, Korea Invention Patent Exhibition Award, and Excellent SME Product Award.