About us

Steadiness & innovation in motion control

About us

Company Overview

 

Steadiness & Innovation in

Motion control

1991 (35+years)

Foundation

since 2022

World-Class Product

120+

Global Employees

Our Core Product Lines

Ball-Screw
Support Solutions
Precision Shaft
Coupling Solutions
Timing Pulley
Solutions

Annual Shipments

unitㅣAvg / Yr

0
+

Coupling

0
+

Support Unit For Ball Screw

0
+

Timing pulley

1st
First to localize precision shaft couplings in Korea
No.1
No. 1 market share in Korea for precision shaft couplings (70%+)
No.1
No. 1 market share in Korea for ball screw support units

OUR STREGTH

FLEXIBILITY

We adapt to our customers’ needs,
offering flexible solutions tailored
to each requirement.

VARIETY

We offer the widest range of
products, providing more options to
choose from than our competitors.

CAPACITY

We handle projects of any scale
effectively, thanks to our extensive
infrastructure and resource base.

PROGRESS

We are committed to continuous
improvement and innovation,
driving us forward at all times.

Headquarters

KOREA

Global Sites

KR · CN · JP · US

Sales Territory

60+

Global Customers

3500+

Company profile leaflet

CEO Message

Driven by a Passion for Motion Control Since 1991

Since our founding in 1991, Sung-il Machinery Co., Ltd. (S.I.M.) has been committed to producing high-quality motion control components.
As Korea’s first manufacturer of precision couplings, we take pride in pioneering the localization of a product once entirely dependent on imports.
That milestone continues to inspire us as we innovate and grow.
Over the years, we’ve expanded our offerings to include a broad range of couplings and factory automation parts—such as support units for ball screws, connecting shafts, timing pulleys, safety couplings, and A.P. Locks.
Through ongoing innovation, we strive to unlock new technological possibilities.

From Domestic Leader to Global Innovator

Today, our products reach around 60 countries across the Americas, Europe, Southeast Asia, and the Middle East.
With branch offices in China and Japan, we embrace the challenges of global competition with determination.
Our goal is to evolve from a leading Korean manufacturer into a true global innovator in motion control.

Built on a Foundation of Excellence

For over 30 years, our guiding principle has been: “Your satisfaction is our top priority.”
This promise drives our unwavering focus on quality, timely delivery, and competitive pricing—values that define us as a trusted partner to customers worldwide.

We, at Sung-il Machinery Co., Ltd., sincerely thank you for your continued support and cooperation.