
Business Areas

Urethane Molding
We specialize in urethane molding using our patented mold base technology. We precision-mold a wide range of urethane products including automotive parts, industrial rollers, and shock absorbers to meet customer specifications.

Synthetic Resin Processing
We precisely process various engineering plastics including PC, PE, Acetal (POM), Nylon, and PTFE. Custom part manufacturing is available based on customer drawings.

CNC/MCT Precision Machining
Using state-of-the-art CNC/MCT equipment, we perform high-precision machining on various materials including aluminum, brass, stainless steel, and synthetic resins.

Mold Fabrication
We provide one-stop service from precision mold design to fabrication. We have extensive experience in high-difficulty mold manufacturing for EV parts and battery packs.

EV Parts Processing
Keeping pace with the EV era, we process battery pack components, motor-related parts, and other EV-specific parts. We contribute to the eco-friendly future industry.
Why NAJIN TECHNOLOGY
25 years supplying precision parts to Korea's leading manufacturers.
Proprietary Urethane Mold Base Technology
Our in-house urethane mold base technology strengthens precision and durability of urethane molds. Single in-house plant covers prototype to mass production.
5-Process One-Stop Service
From urethane molding to synthetic resin, CNC machining, mold fabrication, and EV parts — all processed in a single facility. No outsourcing, faster delivery.
Major automotive · battery · materials clients
Continuously supplying parts to leading domestic and international companies in automotive, battery, and materials sectors for over 25 years. See the clients page for collaboration details.
EV Parts Specialist
Equipped with dedicated processing lines for battery pack components, motor parts, and other EV-specific parts. Ready for the green mobility era.
Projects
Read More
ProjectsRenault Samsung LG Battery Pack Machining
LG BATTERY PACK machining delivered to Renault Samsung in December 2019.
ProjectsSK Battery Plant MC Block Machining
MC (Monomer Cast Nylon) blocks for SK battery plants. Delivered in 2017 and 2018.
ProjectsHyundai Press Shop Urethane Mold Support
Delivered to Hyundai Motor press shop in December 2012. Built with urethane mold base technology.
NAJIN TECHNOLOGY at a Glance
Start Your Project With Us
Backed by 25 years of precision machining experience
Send us your drawings and we'll review them and get back to you

