Sung-il Machinery Co., Ltd.
Incheon, South Korea coupling manufacturer founded 1991; makes precision shaft couplings and ball screw support units for automation and robotics equipment.
Sung-il Machinery Co., Ltd., also marketed as SIM Korea, is a South Korean manufacturer of precision mechanical power-transmission components headquartered in Incheon. Founded in 1991 and incorporated in 2008, the company was Korea's first domestic producer of small precision shaft couplings, reducing reliance on imported European and Japanese motion-control parts.
The product range covers precision shaft couplings, ball screw support units, connecting shafts, timing pulleys, safety couplings, and A.P. Lock keyless bushings. The coupling line includes beam, disk, bellows, oldham, jaw, and rigid designs engineered to specific backlash, torsional stiffness, and misalignment tolerances for use in robot joints, linear-axis servo drives, semiconductor equipment, display-panel processing machinery, and medical devices. The company holds roughly 70 percent of the Korean market for shaft couplings and ranks first domestically in ball screw support units.
Sung-il employs more than 130 people and sells to over 3,500 customers across roughly 60 countries in the Americas, Europe, Southeast Asia, and the Middle East, supported by branch offices in China, Japan, and the United States. The company has received the Korean government's WCP product certification, the Silver Tower Medal, and the Korea Master Hand award for its coupling manufacturing.
Primary type & automation activities this supplier delivers:
Radial Beam Coupling Ultra-Precision Series
Zero-backlash radial beam coupling for precision robotic joints, servo drives, and semiconductor automation axes.
High Torque Disk Coupling Ultra-Precision Series
High-torque, zero-backlash disk coupling for demanding robot and machine tool servo transmission.
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Contact Sung-il Machinery Co., Ltd.
WEBSITE
https://www.sungilfa.co.kr/en/HEADQUARTERS
Korea, Republic of (South)
Company Facts
Founded
1991
Primary Role
Component Supplier
Company Size
-
Primary Region
Asia-Pacific
Annual Sales
-
Funding Stage
-
Funding Total
-
Keywords
- Sung-il Machinery Co.
- Ltd.
- precision coupling
- robot components
- semiconductor equipment
- display automation
- ISO 9001
- zero-backlash coupling
- shaft coupling
- ball screw support unit
- FA components
- keyless bushing
- robot joint
- Component Supplier
- Manufacturer
- Exporter
- Navigation & Positioning
- End-effector & Grasping
- Motion & Actuation
- Manufacturing
