ENGINE STARTING SYSTEM
Starter Motor
Converts battery power into rotational force to initiate engine starting.
Brush Holder · Yoke · Armature · Field Coil
ALTERNATOR · STATOR
Power for every mile in motion.
Built from a laminated core and windings, the stator is a key alternator component that generates electrical power.
Some staged images may differ from actual products.
AUTOMOTIVE ELECTRICAL COMPONENTS
Small components complete the starting and charging system.
AMC specializes in automotive starting and charging components. We carry out the manufacturing processes each product requires, from winding and forming to joining, assembly, and inspection.
FROM MATERIAL TO COMPONENT
PROCESS VIEW / 01COPPER TO FORMWinding & Forming
We wind copper material and form it to the required geometry, creating the foundation for electrical performance.
OUR ATTITUDE
Integrity. Commitment. Collaboration.
Integrity means holding every process to its standard. Commitment raises quality. Collaboration brings each component to completion.
OUR COMPONENTS
Components at the core of starting and charging.
Brush holders, yokes, armatures, and field coils make up the starting system, while stators generate power in the charging system.
VEHICLE CHARGING SYSTEM
Alternator
Converts engine rotation into electricity for battery charging and vehicle electrical systems.
Stator
STARTER MOTOR / 01
Brush Holder
A starter-motor subassembly that supports the brushes and transfers current to the armature.
View components and applications
- Key components
- Brush Holder, Brush, Insulation Plate, Spring, Base, Brush Cover
- Application
- Product range for compact and high-output starters
STARTER MOTOR / 02
Yoke & Brush Holder
A starter-motor assembly combining the field coil and brush holder with the yoke.
View components and applications
- Key components
- Field Coil Ass’y, Brush Holder Ass’y, Yoke Ass’y
- Application
- Assembly range for compact and high-output starters
STARTER MOTOR / 03
Armature
The rotating starter-motor component that converts electrical energy into mechanical rotation.
View components and applications
- Key components
- Shaft, Core, Core Side, Coil, Commutator, Ring, Slot Cell
- Application
- Rotating component for compact and high-output starters
STARTER MOTOR / 04
Field Coil
A coil that creates the magnetic field required to rotate the armature when current flows inside the yoke.
View components and applications
- Key components
- Rectangular Copper Wire, Insulation Paper, Brush, Connector Ass’y, Insulation Material
- Application
- Powder-coated and tape-insulated product range
ALTERNATOR / 05
Stator
Comprising a laminated core and winding, this component generates electrical power as the alternator rotor turns.
View components and applications
- Key components
- Core, Slot Cell, Wedge, Enamel Coil, Varnish, Insulation Tube
- Application
- Winding assembly for alternators
Browse products horizontally
01 / 01
OUR CUSTOMERS
Automotive electrical systems, completed together.
AMC’s key customers include Valeo Electrical Systems Korea, a manufacturer of automotive electrical components, and BorgWarner, a provider of propulsion and electrification technologies.
Valeo Electrical Systems Korea
BorgWarner
MOBILITY IN CONTEXT
Components prove their purpose on the road.
Buses carry people. Trucks carry goods. Starter motors bring their engines to life, while alternators supply electrical power on the road.
COMMERCIAL MOBILITY
Starting and power for commercial buses.
Commercial buses in daily service depend on reliable starting and vehicle electrical power systems.
HEAVY DUTY
Built for repeated heavy-duty operation.
Starting and charging systems are essential to the repeated starts and long operating hours of heavy commercial vehicles.
MATERIAL STUDY
Winding and laminated-core materials.
Copper windings and laminated cores link current and magnetic flux, enabling the electrical functions of armatures, field coils, and stators.
HANDS AT WORK
Hands connecting material and component.
Careful checks of winding condition and component assembly help verify finished-product quality.
THE DETAIL MATTERS
The detail in winding and assembly completes every component.
Cores, windings, insulation, and contact parts pass through each process to become a complete electrical component.
FROM PARTS TO ASSEMBLIESFROM PARTS TO ASSEMBLIES
From copper and core to a complete assembly.
Our specialized expertise in processing coiled copper into flat conductors underpins the manufacture of starter and alternator components.
COPPER WINDING
Winding geometry and surface.
An essential element of starter and alternator components, carrying current and generating magnetic fields.
LAMINATED CORE
Cross-section of a laminated core.
Built from stacked thin steel sheets, the core provides a path for magnetic flux and supports the windings.
INSULATION DETAIL
Winding and insulation together.
Insulation electrically separates the windings from the metal core to prevent short circuits.
Armature Assembly
The process of joining the core and winding to the rotating shaft.
View process imageClose process image
Armature Assembly
The process of joining the core and winding to the rotating shaft.
View process imageClose process image- Core press-fitting
- Coil insertion
- Commutator press-fitting
- Ring insertion & assembly
Yoke & Brush Holder Assembly
Insulation is added to the winding before the yoke and brush holder are assembled.
View process imageClose process image
Yoke & Brush Holder Assembly
Insulation is added to the winding before the yoke and brush holder are assembled.
View process imageClose process image- Coil winding
- Welding & connection
- Insulation coating
- Yoke assembly
- Brush holder fastening
Stator Assembly
Windings are inserted into the laminated core, followed by insulation treatment and inspection.
View process imageClose process image
Stator Assembly
Windings are inserted into the laminated core, followed by insulation treatment and inspection.
View process imageClose process image- Core welding
- Coil insertion
- Coil forming
- Impregnation & drying
- Tube insertion & inspection
QUALITY BUILT INTO THE PROCESS
Starting with requirements, verified through process and inspection.
Product requirements define the working standards. Findings from production and inspection inform the next cycle.
01ALIGN / REQUIREMENT
Specs & conditions → working standards
Aligned to requirements
Product specifications and application conditions are translated into working standards.
02VERIFY / PROCESS
Process results ↔ requirements
Verified in process
Requirements and results are checked at key winding, forming, joining, and assembly stages.
03IMPROVE / FEEDBACK
Inspection & feedback → next run
Results drive improvement
Findings from inspection and customer feedback inform the next production run and process improvements.
OUR PLACE
From material processing to component production.
Our winding, forming, assembly, and inspection equipment supports the production of automotive electrical components.
MANUFACTURING & INSPECTION
From winding and forming to measurement and inspection.
Explore manufacturing and inspection equipment by process.
Winding & Forming
- Coil Winding Machine
- Coil Inserting Machine
- Coil Forming Machine
Joining & Assembly
- Spot Welder
- Ultrasonic Welder
- Riveting Machine
- Hydraulic Press
Insulation & Heat Treatment
- Varnish Impregnator
- Powder Coating Machine
- Dry Oven
Measurement & Inspection
- Surge Tester
- Hardness Tester
- Ring / Cylinder Gauge
OUR JOURNEY
A manufacturing journey since 1981.
By expanding our production base and strengthening our quality systems, we have grown into a manufacturer of automotive starting and charging components.
MANUFACTURING RECORD1981 — PRESENT
- 1981–1986FOUNDATION
Manufacturing foundation
Manufacturing began as Dongjin Metal, with the establishment of a factory laying the foundation for production.
- 1981Manufacturing begins
- 1986Gyeongju plant established
- 1991–2002SYSTEMIZE
Corporate and quality systems
After corporate registration, the company expanded its foundation through ISO 9002 and 100 PPM certifications, a new office, and plant expansion.
- 1991Corporate registration
- 1997Quality system certifications
- 2002Facility expansion
- 2004–2008AUTOMOTIVE
Automotive quality advancement
SQ-MARK, ISO/TS 16949, and INNO-BIZ certifications, together with production consolidation, expanded automotive manufacturing capability.
- 2004SQ-MARK
- 2006ISO/TS 16949
- 2008Production base consolidated
- 2013–PRESENTSPECIALIZE
Specialization as AMC
The company adopted the AMC name and continues to build expertise in automotive starting and charging components.
- 2013Renamed AMC
- 2014SES-Tier 2
- PresentStarting & charging component production
OUR PLACE, OUR PEOPLE
Focused on components. Built by AMC.
AMC's manufacturing site brings together the headquarters and production buildings.
VERIFIED CREDENTIALS
Manufacturing backed by verified credentials.
Key certifications currently held and valid at AMC.
- CurrentCERTIFIED QMSISO9001ISO 9001:2015 · KS Q ISO 9001:2015
ISO 9001:2015
Quality Management System Certification
Certification body · Global Systems Register (GSR) - Current
INNO-BIZ
Technology-Innovative SME
Ministry of SMEs and Startups - Current
SES-TIER 2
Supplier Evaluation Standard
Valeo Electrical Systems Korea
01 / 03
A CLOSER LOOK
A closer look at AMC's facilities.
A view across AMC's Plant 1 and Plant 2 facilities.
Plant 1 & Plant 2The two production buildings connected by a shared yard.
Plant 1A view of the Plant 1 production building and entrance.
Plant 2 & OfficeA view of the Plant 2 production and office buildings.
INQUIRY
Tell us what you need.
From products to careers, we review each inquiry according to its purpose.
Contact Information+82-54-776-7000
Visit us
28 Yurim-ro 13beon-gil, Gyeongju-si, Gyeongsangbuk-do, Republic of Korea
Emailinquiry@amc-one.com
What to include in your inquiry
Please include the following information where possible.
- Purpose and request
- Name, company, and contact details
- Relevant materials or background
- Preferred response timeline