U-JIN Tech Corp.
U-JIN Tech Corp. is a South Korean industrial manufacturer specializing in friction welding machines and automated manufacturing cells.
Last updated August 26, 2026
Overview
U-JIN Tech Corp. is a South Korean industrial technology company focused on friction welding equipment and automated manufacturing systems. Founded in February 2009, the company initially developed and manufactured hydraulic friction welding machines before expanding into computer numerical control (CNC) systems and automated production cells. Its equipment is designed for industrial joining applications in which components are bonded through friction-generated heat and pressure rather than conventional melting and fusion. A central part of U-JIN's development has been the integration of CNC technology into friction welding. CNC controls can be used for automated material handling, dimensional positioning, spindle speed, acceleration, and angular alignment. This allows manufacturers to maintain tighter component-length tolerances than conventional hydraulic systems and to control the relative orientation of parts such as the two ends of a drive shaft. U-JIN's CNC double-head friction welding machines use servo motors and position sensors to regulate spindle movement and angular position; the company describes this architecture as enabling high angular accuracy in suitable applications. The company's machines are used to manufacture or join a broad range of industrial components. Examples described in reference material include gear shafts, motor shafts, long screws and bolts, electric terminals and cable lugs, pump shafts, coolant and refrigerant adapters, and automotive drivetrain components. Friction welding can also support joints between dissimilar metals, including combinations of steel, stainless steel, copper, aluminum, and other engineering materials. Because the process takes place below the melting point of the joined materials, the resulting joint can retain substantial mechanical strength and may outperform the softer base material in some applications. U-JIN established an internal research and development center through the Korea Industrial Technology Association in 2010. The center's stated purpose was to develop new products and strengthen the company's technical capabilities. In 2012, U-JIN produced what the reference material identifies as Korea's first CNC friction welding machine, marking a transition from its initial hydraulic equipment focus toward digitally controlled machinery. The company received Korean industrial recognition in 2015 as a contributor to the development of excellent capital goods. It subsequently obtained the European CE Certificate in November 2016, supporting the export of its machinery to European markets. In December 2016, on Trade Day, U-JIN received a 10 Million Dollar Export Tower Award. These milestones indicate an expansion from domestic equipment development into international industrial machinery sales. U-JIN's market position is therefore centered on specialized capital equipment rather than consumer-facing products. Its offering combines friction-welding process technology, CNC motion control, automation, and application-specific production-cell engineering. Available reference material does not identify a parent company, public listing, current executives, detailed revenue figures, or a complete present-day geographic sales network.
History
U-JIN Tech Corp. was founded in South Korea in February 2009 as a manufacturer of friction welding machinery. Its early product development centered on hydraulic friction welding machines, a class of industrial equipment that joins components through controlled friction, pressure, and heat generated below the melting point of the materials. In 2010, the company established its own research and development center within the Korea Industrial Technology Association. The center was intended to support new-product development and broaden U-JIN's technical capabilities. The company's subsequent development moved beyond hydraulic systems toward CNC-controlled equipment. In 2012, U-JIN developed and manufactured a CNC friction welding machine described in the reference material as Korea's first example of this type. CNC technology became important to U-JIN's machinery because it can control both automated material transport and precision welding movements. Position-measuring devices allow more accurate control of component length, while servo-driven spindles can regulate rotational speed, acceleration, and angular position. In double-head configurations, this makes it possible to align the two ends of components such as drive shafts with a controlled angular relationship. The reference material identifies angular accuracy of approximately plus or minus 0.5 degrees for suitable applications. U-JIN's friction welding systems serve a range of industrial manufacturing uses. The equipment can be applied to gear shafts, motor shafts, pump shafts, drivetrain parts, long fasteners, electrical terminals, cable lugs, and adapters for refrigerant or coolant systems. The process is also suitable for some dissimilar-metal joints, such as steel-to-stainless-steel and copper-to-aluminum combinations. These applications rely on the ability of friction welding to form strong solid-state joints without melting the base materials. The company received recognition from South Korea's Minister of Trade, Industry, and Energy in 2015 for its contribution to the development of excellent capital goods. In November 2016, it obtained European CE certification and began exporting machines to Europe. The following month, at the country's Trade Day event, U-JIN received a 10 Million Dollar Export Tower Award. These events marked significant recognition of its domestic engineering work and export activity. Available reference material presents U-JIN as a specialized industrial-equipment manufacturer whose business combines friction-welding technology, CNC controls, and automated manufacturing cells. It does not provide verified information about the company's current management, ownership, financial performance, headquarters address, or operations beyond the markets specifically mentioned.
- 2016European certification and export award
U-JIN received European CE certification in November and began exporting to Europe; in December it received the 10 Million Dollar Export Tower Award.
- 2015Capital-goods development recognition
The Minister of Trade, Industry, and Energy recognized U-JIN as a contributor to the development of excellent capital goods.
- 2012CNC friction welding development
The company developed and manufactured a CNC friction welding machine identified in the reference material as Korea's first.
- 2010R&D center established
U-JIN established an internal research and development center within the Korea Industrial Technology Association to develop new products.
- 2009Company founded
U-JIN Tech Corp. was founded in February as a South Korean manufacturer of friction welding machinery.
Products and positioning
A specialized South Korean capital-goods manufacturer combining friction welding, CNC motion control, and production automation for high-strength industrial component joining.
Hydraulic friction welding machinesIndustrial welding equipment
U-JIN initially developed and manufactured hydraulic friction welding machines. These systems use controlled mechanical motion and pressure to generate frictional heat and join components without conventional melting. They form the foundation of the company's early equipment portfolio and are suited to industrial production applications requiring repeatable solid-state joints.
CNC friction welding machinesCNC industrial welding equipment2012
U-JIN's CNC friction welding machines apply numerical control to welding movements, positioning, and material handling. Compared with conventional hydraulic equipment, CNC control can improve component-length consistency and support precise process sequencing. The systems are intended for manufacturers that require repeatable, accurately positioned friction-welded assemblies.
CNC double-head friction welding machinesAutomated welding equipment
U-JIN's CNC double-head systems use two servo-motor-driven spindles with position sensors. The controls regulate spindle speed, acceleration, and angular position, allowing the two ends of a component such as a cardan shaft to be aligned at a specified angle. The reference material cites angular accuracy of approximately plus or minus 0.5 degrees for suitable applications.
Automated manufacturing cellsFactory automation
U-JIN supplies automated manufacturing cells associated with its friction-welding machinery. These cells can incorporate automated material transport and CNC-controlled production operations, enabling friction-welding processes to be integrated into industrial manufacturing lines. Specific cell configurations, industries, and model names are not identified in the available reference material.
Flagship businesses
- CNC double-head friction welding machines
- Automated friction-welding production cells
Brand decisions
- 2016Expansion into European exportsStrategy
U-JIN sought to commercialize its friction-welding machinery outside South Korea.
What changed. After receiving European CE certification in November, the company began exporting machines to Europe.
Aftermath. The export expansion was followed by the company's receipt of the 10 Million Dollar Export Tower Award at Trade Day in December 2016.
Export Tower award threshold. 10 million dollars (December 2016)
- 2012Move into CNC friction weldingProduct launch
U-JIN had initially focused on hydraulic friction welding machines and was developing greater precision and automation capabilities.
What changed. The company developed and manufactured a CNC friction welding machine.
Aftermath. The development expanded U-JIN's portfolio toward digitally controlled industrial welding equipment and supported applications requiring automated positioning and angular control.
Recent events
- 2016U-JIN obtains European CE certification and begins exporting to Europe
In November 2016, U-JIN received the European CE Certificate and began exporting its machines to European markets.
RegulationOther - 2016U-JIN receives the 10 Million Dollar Export Tower Award
At South Korea's Trade Day event in December 2016, U-JIN received the 10 Million Dollar Export Tower Award.
Other - 2015U-JIN receives recognition for capital-goods development
South Korea's Minister of Trade, Industry, and Energy recognized U-JIN as a contributor to the development of excellent capital goods.
Other - 2012U-JIN develops a CNC friction welding machine
The company developed and manufactured a CNC friction welding machine described in the reference material as Korea's first machine of this type.
Product launchProduct generation - 2010U-JIN establishes an R&D center through KOITA
U-JIN established its own research and development center within the Korea Industrial Technology Association to support the development of new products.
Other
Sources
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