PYUNGHWA HOLDINGS CO.,LTD.

PyungHwa Group, Trust and Innovation.

Since its foundation in 1950, PyungHwa Group has held a great deal of pride for being recognized as a pioneer in the rubber industry in Korea and has endeavored to become a leading company of change and development through continuous business innovation and technology development.

All of its affiliates have formed the group of companies that have implemented technology based on core competence. Through its people-oriented management philosophy, the group and each of its employees have enacted and complied with the internal code of ethics and conduct for clear and transparent management that contributes to customers and local communities.

The 21st century is the age of opportunity while also being an era of change where it is difficult to predict the future. Further to this, PyungHwa Group is committed to the realization of customer satisfaction through change, innovation, challenge, passion, communication and cooperation.

I kindly ask for your continued interest and support to help PyungHwa Group grow into a world-class company specializing in automotive parts. Thank you.

Hwang, Sun-yong
PyungHwa Group CEO

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R&D

PyungHwa Group at a Glance

PH

Since 1950

Products

Anti Vibration System

-Mount, Bush

Hoses

Air Strut

Sales

FY2024$442M

FY2023$424M

POS

Since 1977

Products

Seals & Rings

VSS, Sprocket

BPS / BCS

Jounce Bumper

Sales

FY2024$231M

FY2023$221M

PNDT

Since 2012

Products

Drive Train & Iron Casting

-Torsional Vibration Damper

-Damper De-coupled Unit

Sales

FY2024$50M

FY2023$47M

PFS

Since 2020

Products

Fuel Cell Gasket

Nonwoven GDL

Humidifier

Sales

FY2024$56M

FY2023$59M

PHK

Since 1985

Products

Metal Stamping

Aluminum Die-Casting

Pipe (Tube)

Machining

Sales

FY2024$88M

FY2023$82M

PHCMB

Since 1993

Products

Rubber Compounding

-FKM / NBR / EPDM / ACM / AEM / NR

Sales

FY2024$94M

FY2023$89M

PHENG

Since 2004

Products

Machinery Manufacturing

Mold (Rubber / Press) Manufacturing

Sales

FY2024$24M

FY2023$24M

Business Portfolio

Products

Specialties

Sealing

E-Powertrain

Powertrain

Suspension / Chassis

Brake
Hose

Fuel

Intake & Exhaust

Cooling

Brake
Metal

Aluminum Die-Casting

Stamping
AVS

E-Powertrain

Powertrain

Suspension / Chassis
TVD

Torsional Vibration Damper
Rubber Compounds

CMB

FMB
Hydro Bush
1. Maximizing the reduction of residual vibrations and improving overall ride comfort by utilizing hydro damping technology
2. The first-ever domestic development and production application of a vertical-type Hydro G Bush
Air Strut Complete
& Air Spring Assembly
1. Enabling precise height adjustment while effectively isolating road vibrations and shocks
2. Manufacturing and supplying bellows— an essential component of air struts and air springs—using our proprietary Axial ply construction method, delivering outstanding durability and driving stability
SGR (Shaft Ground Ring)
1. Being assembled in the motor and conducting the shaft voltage generated in the drive shaft, preventing electrical corrosion of metal components such as bearings
2. Simplifying the structure and minimizing resistance values compared to a competitor's products

Structure

Development

R&D PH · POS

Full Design & Engineering

Raw Material

PHENG

Machinery & Molds
PHK

Supplying Subcomponent

Stamping / Aluminum Die-Casting
PHCMB

Automated Rubber Compounding

Production & Validation

PH

AVS / Hose / Air Strut
POS

Seal / Ring
PFS

Stamping / Fuel Cell Gasket
PNDT

Iron Casting / TVD

Global Network

Korea

PHHC
PH
POS
PFS
PNDT
PHK
PHCMB
PHENG

China

TPH
TPHK
TPHE

India

PHI

Europe

Europe Office

USA

PHA

Korea

China

India

Europe

USA

PH

PyungHwa Industrial

PH has been producing automotive and general industrial rubber parts, and it specializes in supplying NVH systems to major global OEMs, supported by an integrated production system that encompasses material development, product design, and testing.

Since 1950
$455M revenue
814 employees
3 plants &
1 R&D Center
Korea Exchange
Listed
EcoVadis Silver Medal

PH Product

AVS

HOSE

E-Powertrain
- Motor Mount
  
  Motor Mount
  
  Core Functions
  
  It connects the electric vehicle’s motor to the subframe, supports the motor’s weight, isolates vibrations produced by the motor, and controls motor movement induced by the vehicle’s motion.
  
  Key Features
  
  Through our proprietary rubber compounding technology, we apply optimized rubber specifications that maintain their characteristics even under extreme motor conditions, ensuring consistent product performance.
  
  Primarily designed with a conventional structure, it features a flap-type insulator to improve vibration isolation performance. Ensures superior durability under demanding operating conditions through our proprietary rubber compounding technology.
- Hydro Motor Mount
  
  Hydro Motor Mount
  
  Core Functions
  
  A fluid-filled motor mount that connects the electric motor to the subframe, effectively attenuating vibrations. Commonly used in premium EVs to improve NVH performance.
  
  Key Features
  
  Through our proprietary rubber compounding technology, we apply optimized rubber specifications that maintain their characteristics even under extreme engine conditions, ensuring consistent product performance.
  
  Compared to standard types, it offers advantages in vehicle NVH and ride & handling performance. The use of low dynamic stiffness rubber effectively reduces motor noise.
Powertrain
- Engine Mount
  
  Engine Mount
  
  Core Functions
  
  It is connected between the engine and the vehicle body, absorbing engine movement and shocks through hydraulic damping or rubber materials, effectively reducing vibrations.
  
  A hydro engine mount is a technically advanced component designed to control vibrations within specific frequency ranges of a vehicle, playing a critical role in enhancing ride comfort and noise, vibration, and harshness (NVH) performance.
  
  Key Features
  
  Through our proprietary rubber compounding technology, we apply optimized rubber specifications that maintain their characteristics even under extreme engine conditions, ensuring consistent product performance.
  
  noise, and shocks generated during the operation of the engine enhancing vehicle handling and ride comfort.
- Transmission Mount
  
  Transmission Mount
  
  Core Functions
  
  It installed between the transmission and the vehicle body similar to an engine mount, it absorbs vibrations and shocks, contributing to enhanced ride comfort.
  
  It effectively absorbs vibrations and shocks during transmission operation, minimizing their transfer to the vehicle body.
  
  Key Features
  
  Through our proprietary rubber compounding technology, we apply optimized rubber specifications that maintain their characteristics even under extreme engine and transmission conditions, ensuring consistent product performance.
  
  By using our proprietary rubber compound, it blocks vibrations, noise, and shocks generated during the operation of the engine and transmission, enhancing vehicle handling and ride comfort.
- Roll Rod
  
  Roll Rod
  
  Core Functions
  
  This mount use to control the rotational movement of the powertrain in a vehicle, particularly rolling motion (front-to-back oscillation). It generally serves as an auxiliary component of the engine mount system and conduct an important role in enhancing the driveline stability as well as NVH (Noise, Vibration, and Harshness) performance.
  
  Key Features
  
  Through our proprietary rubber compounding technology, the rubber specifications are optimized to maintain their characteristics in extreme environments, ensuring the product’s consistent performance.
  
  It is primarily constructed using a conventional-type design and incorporates proprietary rubber compounds to effectively absorb shocks and vibrations generated during rapid acceleration and sudden braking, thereby enhancing cabin quietness.
Suspension / Chassis
- Chassis Bushing
  
  Chassis Bushing
  
  Core Functions
  
  A key component that effectively isolates vibrations from the tires to the vehicle body, supports vehicle load, and significantly influences NVH and R&H performance.
  
  Key Features
  
  Through proprietary rubber compounding technology and precision geometry design, we provide optimized solutions for vehicle ride comfort and driving performance.
  
  Through our expertise in low-friction technologies, lightweight design using plastic and aluminum materials, and extensive experience in developing various types of bushings, we deliver customized products that meet customer requirements.
- Strut Mount
  
  Strut Mount
  
  Core Functions
  
  Assembled in the upper part of the strut assembly, it isolates road vibrations and absorbs shocks to enhance ride comfort and vehicle handling
  
  Key Features
  
  Through proprietary rubber compounding technology and optimized shape design, we are able to enhance driving performance and ride comfort to meet vehicle-specific requirements.
  
  With extensive experience in developing various strut mounts, we offer customized solutions as per customer needs.
- Hydro Bushing
  
  Hydro Bushing
  
  Core Functions
  
  A key component that effectively isolates vibrations from the tires to the vehicle body, supports vehicle load, and significantly influences NVH and R&H performance.
  
  Maximizing the reduction of residual vibrations and improve overall ride comfort by utilizing hydro damping technology.
  
  Key Features
  
  We have successfully developed and mass-produced hydro bushes for key areas such as FRT G Bush, crossmember bush, and CTBA bush, ensuring stable production quality.
  
  We achieved the first-ever domestic development and production application of a vertical-type hydro G Bush.
- Dynamic Damper
  
  Dynamic Damper
  
  Core Functions
  
  A dynamic damper designed to effectively absorb energy at specific resonant frequencies, thereby reducing vibrations in the main body.
  
  Key Features
  
  We apply our extensive development experience and analysis capabilities to various locations, including vehicle bodies and strut assemblies, delivering customized dynamic damper solutions tailored to customer needs.
- Air Strut, Complete
  
  Air Strut, Complete
  
  Core Functions
  
  The air struts are assembled between the vehicle body and lower knuckles, enabling precise height adjustment while effectively isolating road vibrations and shocks. This ensures superior ride comfort and driving stability under various road conditions.
  
  Key Features
  
  PH’s Core Competency in Air Suspension PH manufactures and supplies bellows—an essential component of air struts and air springs—using its proprietary Axial ply construction method. This technique delivers outstanding durability and ride quality.
  
  With in-house capabilities in product design, assembly, process engineering, and durability/performance testing, PH is fully equipped to meet OEM requirements with optimized quality and responsiveness.
- Air Spring, Assembly
  
  Air Spring, Assembly
  
  Core Functions
  
  The air struts are assembled between the vehicle body and lower knuckles, enabling precise height adjustment while effectively isolating road vibrations and shocks. This ensures superior ride comfort and driving stability under various road conditions.
  
  Key Features
  
  PH’s Core Competency in Air Suspension PH manufactures and supplies bellows—an essential component of air struts and air springs—using its proprietary Axial ply construction method. This technique delivers outstanding durability and ride quality.
  
  With in-house capabilities in product design, assembly, process engineering, and durability/performance testing, PH is fully equipped to meet OEM requirements with optimized quality and responsiveness.
Fuel
- Filler Hose
  
  Filler Hose
  
  Core Functions
  
  Filler hose is installed between the fuel inlet and the fuel tank and serves to supply fuel oil into the fuel tank.
  
  Key Features
  
  Rubber hose to which a fluororesin is applied between the inner and outer rubbers is advantageous in improving fuel permeability.
  
  Environmental regulations regulating air pollution and ozone destruction caused by hydrocarbon gas emissions from automobiles are being strengthened. To meet these regulations, rubber compounds and characteristics are studied for regulatory satisfaction to develop ultra-low permeable fuel hose rubber mixing and characteristics.
- Vapor
  
  Vapor
  
  Core Functions
  
  This product is a type of hose that transports fuel from the vehicle's fuel tank to the engine, handling both evaporated gases and liquid fuel.
  
  Key Features
  
  As a fuel transfer hose located near the fuel tank, it is exposed to the external environment. Therefore, the outer rubber is made of a high-quality material with excellent ozone and weather resistance.
  
  Due to strengthened environmental regulations in North America, THV hoses, which are subject to vehicle evaporative emission regulations, are designed with a resin that ensures excellent fuel permeation resistance and adhesion.
- Leveling
  
  Leveling
  
  Core Functions
  
  This product is a type of hose that transports fuel from the vehicle's fuel tank to the engine, handling both evaporated gases and liquid fuel.
  
  Key Features
  
  As a fuel transfer hose located near the fuel tank, it is exposed to the external environment. Therefore, the outer rubber is made of a high-quality material with excellent ozone and weather resistance.
  
  Due to strengthened environmental regulations in North America, THV hoses, which are subject to vehicle evaporative emission regulations, are designed with a resin that ensures excellent fuel permeation resistance and adhesion.
- Return Hose
  
  Return Hose
  
  Core Functions
  
  The Return Hose is a transfer hose that returns the remaining fuel from the engine's injector side back to the fuel tank after injection. Its purpose is to transfer fuel around the engine.
  
  Key Features
  
  For decades, we have collaborated with OEMs and FEM companies to develop and mass-produce hoses that meet customer requirements, mass-produce and develop rubber hoses that meet harsh conditions such as heat resistance and airtightness under adverse conditions such as fuel backflow prevention and engine vibration/ambient temperature changes.
- Feed Hose
  
  Feed Hose
  
  Core Functions
  
  This product is a type of hose that transports fuel from the vehicle's fuel tank to the engine, handling both evaporated gases and liquid fuel.
  
  Key Features
  
  As a fuel transfer hose located near the fuel tank, it is exposed to the external environment. Therefore, the outer rubber is made of a high-quality material with excellent ozone and weather resistance.
  
  Due to strengthened environmental regulations in North America, THV hoses, which are subject to vehicle evaporative emission regulations, are designed with a resin that ensures excellent fuel permeation resistance and adhesion.
Cooling
- Oil-Cooler Hose
  
  Oil-Cooler Hose
  
  Core Functions
  
  The Oil-Cooler Hose is a transfer hose for transmission fluid (ATF) that is assembled between the automatic transmission and the cooler to regulate the transmission's temperature.
  
  Key Features
  
  For decades, we have collaborated with OEMs and FEM companies to develop and mass-produce hoses that meet customer requirements. By benchmarking global competitors and advancing our own technology, we have successfully completed the mass production of rubber hoses with excellent oil, pressure, and heat resistance.
- Heater Hose
  
  Heater Hose
  
  Core Functions
  
  The heater hose transfers heated water from the engine to the heater unit for indoor heating and circulates cooled coolant from the heater unit back to the engine.
  
  Key Features
  
  For decades, we have collaborated with OEMs and FEM companies to develop and mass-produce hoses that meet customer requirements. By benchmarking global competitors and developing our own technology, we have successfully completed the mass production of products applicable to downsized high-power engines.
- Water Hose
  
  Water Hose
  
  Core Functions
  
  The water hose connects the engine, radiator, and water pump to ensure smooth circulation of coolant. Through this process, it prevents engine overheating and helps maintain a consistent operating temperature.
  
  Key Features
  
  For decades, we have collaborated with OEMs and FEM companies to develop and mass-produce hoses that meet customer requirements. By benchmarking global competitors and developing our own technology, we have successfully completed the mass production of products applicable to downsized high-power engines.
- Radiator Hose
  
  Radiator Hose
  
  Core Functions
  
  The radiator hose connects the engine and radiator, transferring heated coolant to the radiator and circulating cooled coolant back to the engine. Through this process, it prevents engine overheating and helps maintain a consistent operating temperature.
  
  Key Features
  
  For decades, we have collaborated with OEMs and FEM companies to develop and mass-produce hoses that meet customer requirements. By benchmarking global competitors and developing our own technology, we have successfully completed the mass production of products applicable to downsized high-power engines.
Intake & Exhaust
- PCV & Breather Hose
  
  PCV & Breather Hose
  
  Core Functions
  
  The PCV & Breather hose connects the crankcase to the air cleaner, transferring blow-by gases to the air cleaner and surge tank. Through this process, regulate internal pressure and reduces emissions by re-burning harmful gases.
  
  Key Features
  
  Hoses are made of AEM rubber for parts requiring durability such as oil resistance, fuel resistance, ozone resistance, heat resistance, etc.
  
  If fuel permeability and alcohol resistance are required, FKM rubber can be extruded into the inner surface to be manufactured as a two-layers rubber hose.
  
  After rubber extrusion, it can be molded into a mandrel mold to manufacture products in various shapes that customers want.
- Inter Cooler Hose
  
  Inter Cooler Hose
  
  Core Functions
  
  The intercooler hose connects the turbocharger and the intercooler, delivering high-temperature compressed air from the turbocharger to the intercooler, and then supplying the cooled air to the engine. This ensures efficient air intake and enhances engine performance.
  
  Key Features
  
  Hoses are made of ACM, HT-ACM, and VMQ rubber used for parts requiring durability such as oil resistance, ozone resistance, heat resistance, cold resistance, and blowby gas resistance.
  
  It is a three-layers rubber hose with a Aramid woven yarn between the inner and outer rubber, which is advantageous for pressure resistance and NVH.
  
  After rubber extrusion, it can be molded into a mandrel mold to manufacture products in various shapes that customers want.
Brake
- Vacuum Hose
  
  Vacuum Hose
  
  Core Functions
  
  Vacuum hoses transfer the vacuum generated inside the engine to the brake booster, thereby increasing brake pressure. Additionally, by using rubber materials, they help reduce noise and vibration, contributing to improved NVH (Noise, Vibration, and Harshness) performance.
  
  Key Features
  
  Through FEA, it is possible to accurately predict and verify the loads applied to the vehicle body during engine operation and hose deformation caused by changes in engine room temperature.
  
  If vacuum pressure is insufficient, a vacuum booster (intensifier) can be custom-designed to connect with the air intake, intake manifold, and vacuum pump.

POS

PyungHwa Oil Seal

POS specializes in manufacturing oil seals, O-rings, and packing components for automotive and industrial applications, delivering superior sealing performance under high-temperature and highpressure conditions, backed by advanced material and design technology through technical cooperation with NOK, Japan.

Since 1997
$231M revenue
983 employees
4 plants &
1 R&D Center

POS Product

E-Powertrain

High Speed Rotational Seal

High Speed Rotational Seal

Core Functions

High Speed Rotational Seal is assembled in the input shaft of the motor & and reducer, where it either seals the internal oil of the system or controls the flow rate.

Key Features

With optimized design and coating technology, torque generation can be minimized, thereby promoting improved transmission efficiency and fuel economy.
SGR (Shaft Ground Ring)

SGR (Shaft Ground Ring)

Core Functions

Shaft Ground Ring is assembled in the motor. it conducts the shaft voltage generated on the drive shaft, preventing electrical corrosion of metal components such as bearings.

Key Features

It simplifies the structure and minimizes resistance values compared to a competitor's products.
Gasket

Gasket

Core Functions

O/D-RING & GASKET can be used anywhere there is a mountable groove, and seals various fluids such as oil, air, and coolant.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.
O-Ring

O-Ring

Core Functions

O/D-RING & GASKET can be used anywhere there is a mountable groove, and seals various fluids such as oil, air, and coolant.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.

Powertrain

Valve Stem Seal

Valve Stem Seal

Core Functions

Valve Stem Seal is assembled in the valve guide of the engine block head and, during engine operation, releases an appropriate amount of engine oil to lubricate the gap between the valve guide and valve stem, thereby enhancing the durability of the components.

Key Features

Through proprietary rubber compounding design and evaluation, we develop specialized rubber that can withstand the extreme conditions of internal combustion engines.

With a semi-automated production process, we are able to produce large quantities at an affordable price.
Crankshaft Oil Seal

Crankshaft Oil Seal

Core Functions

Crankshaft Oil Seal is assembled in the cover of the engine block. It prevents the leakage of engine oil inside the system and the intrusion of external dust.

Key Features

Through proprietary rubber compounding technology, we apply specialized materials with optimized rubber specifications that can withstand even extreme environments.

With optimized design and coating technology, torque generation can be minimized, thereby promoting improved transmission efficiency and fuel economy.
Bonded Piston Seal

Bonded Piston Seal

Core Functions

BPS & BCS are assembled in the transmission's hydraulic clutch. It maintains or releases hydraulic pressure to enable the smooth engagement and disengagement of driving power.

Key Features

Through proprietary rubber compounding technology, we apply specialized materials with optimized rubber specifications that can withstand even extreme environments.

By applying an optimized low-friction design, it aims to improve shifting responsiveness and reduce fuel consumption.
Bonded Clutch Seal

Bonded Clutch Seal

Core Functions

BPS & BCS are assembled in the transmission's hydraulic clutch. It maintains or releases hydraulic pressure to enable the smooth engagement and disengagement of driving power.

Key Features

Through proprietary rubber compounding technology, we apply specialized materials with optimized rubber specifications that can withstand even extreme environments.

By applying an optimized low-friction design, it aims to improve shifting responsiveness and reduce fuel consumption.
Axle / Differential Seal

Axle / Differential Seal

Core Functions

Axle & Differential Seal are assembled in the axle, transmission, or reducer case. it seals internal oil and prevents the ingress of external moisture and dust.

Key Features

Through proprietary rubber compounding technology, we apply specialized materials with optimized rubber specifications that can withstand even extreme environments.

By applying low-friction specialized materials and designs, it aims to reduce fuel consumption, and through a compatibility design with mating parts, specifications capable of maximizing sealing performance by forming a labyrinth structure can be applied.
Gasket

Gasket

Core Functions

O/D-RING & GASKET can be used anywhere there is a mountable groove, and seals various fluids such as oil, air, and coolant.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.
O-Ring

O-Ring

Core Functions

O/D-RING & GASKET can be used anywhere there is a mountable groove, and seals various fluids such as oil, air, and coolant.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.
PEEK Seal Ring

PEEK Seal Ring

Core Functions

The PEEK Seal Ring is assembled in inside the transmission and is compressed against the bottom and side walls of the shaft groove by hydraulic pressure. It seals oil effectively by maintaining tight contact with both the groove and outer diameter, even under high load conditions.

Key Features

We provide a wide range of cut-type seal ring designs tailored to specific sealing needs. Each configuration is optimized to prevent leakage across diverse pressure and temperature conditions.

The use of high-performance PEEK material ensures outstanding wear resistance and thermal stability, making our Seal Rings suitable for high PV (Pressure × Velocity) environments found in modern high-stage, lightweight A/T systems.
Thrust Washer

Thrust Washer

Core Functions

The Thrust Washer is mounted on the center supporter inside the transmission and supports the motion by contacting the rotating UD Clutch ASSY.

Key Features

By applying high-performance plastic materials instead of conventional steel, we achieve significant weight reduction.

Material upgrades from PA66 to PEEK or TORLON improve wear resistance and durability under harsh operating conditions.

Suspension / Chassis

Power Steering Seal

Power Steering Seal

Core Functions

When steering, it seals the oil flowing into the system and blocks the intrusion of external dust.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.

With years of experience and know-how, it is possible to apply optimized specifications for various environmental conditions, including usage conditions and system installation locations.
Shock Absorber Seal

Shock Absorber Seal

Core Functions

Shock Absorber Seal is installed in the Shock Absorber, seals the oil and gas inside the system and prevents the ingress of foreign substances from the outside.

Key Features

Through proprietary rubber compounding technology, we apply specialized materials with optimized rubber specifications that can withstand even extreme environments.

With years of experience and know-how, it is possible to appropriately apply specifications optimized for various system installation locations and characteristics, such as Front/Rear/Air-spring.
Hub Seal

Hub Seal

Core Functions

Hub Bearing Seal is assembled between the outer and inner rings of the bearing. it prevents the intrusion of external dust, water, and other contaminants, and also prevents the leakage of grease from inside the system.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.

With years of experience and know-how, it is possible to apply optimized specifications for various environmental conditions, including usage conditions and system installation locations.
Dust Cap

Dust Cap

Core Functions

The Dust Cap protects internal components by covering the opening of a housing or shaft end, preventing the ingress of dust, water, and other contaminants. It ensures the durability and reliability of adjacent parts by acting as a first-line defense barrier.

Key Features

We provide custom-designed dust caps tailored to specific housing geometries and functional requirements, ensuring secure fitting and effective sealing.

Using high-strength plastic-based materials, our dust caps achieve weight reduction while maintaining excellent impact resistance and long-term durability.

Brake

Diaphragm

Diaphragm

Core Functions

The product adjusts and seals the pressure difference between two spaces, helping to operate smoothly when decomposing or converting the pressure between the low-pressure chamber and the transformer chamber.

Key Features

Our own rubber compounding technology, allowing us to design and produce rubber tailored to the specific requirements and performance needs of our clients.

With years of experience and know-how, it is possible to apply optimized specifications for various environmental conditions, including usage conditions and system installation locations.
Boot Pin

Boot Pin

Core Functions

It is mounted on joints, shafts, or connection points to prevent the intrusion of foreign contaminants and absorb vibrations and shocks.

It also prevents the leakage of internal lubricants in the system.

Key Features

Our own rubber compounding technology, allowing us to design and produce rubber tailored to the specific requirements and performance needs of our clients.
Cup Seal

Cup Seal

Core Functions

It is mounted on the brake hydraulic cylinder to prevent leakage of hydraulic fluid and maintain the hydraulic pressure for braking.

Key Features

Our proprietary rubber compounding technology, allowing us to design and produce rubber tailored to the specific requirements and performance needs of our clients.

Hydrogen System

O-Ring

O-Ring

Core Functions

O/D-RING & GASKET can be used anywhere there is a mountable groove, and seals various fluids such as oil, air, and coolant.

Key Features

Through proprietary rubber compounding technology, it is possible to apply materials with optimal specifications that reflect diverse market demands and are suitable for each environmental condition.

PNDT

PyungHwa NOK Drive Train

PNDT specializes in producing engine damper pulleys and vibration control components, ensuring stable performance even in high-speed, high-output environments through precision machining and dynamic balancing technology.

Since 2012
$50M revenue
179 employees
1 plant

PNDT Product

Iron Casting

Hub

Hub

Core Functions

The Hub (TVD) is a component of the TVD.

It is connected to the crankshaft and KEY and crank bolts.

It primarily attenuates vibrations from the engine.

Key Features

The casting-machining line is consistent, so the cost is low.

With the experience of developing/cultivating hub of various materials, We can provide you with products that suit your needs.

Self- strength Analysis (FEA) is possible.
Inertia Ring

Inertia Ring

Core Functions

The INERITA RING (TVD) is a component of the TVD.

It is connected to the auxiliary equipment belt of the engine.

Transfer the rotational force of the crankshaft.

Key Features

The casting-machining line is consistent, so the cost is low.

With the experience of developing/cultivating pulley of various materials, We can provide you with products that suit your needs.

Plating and electrodeposition painting are possible.

TVD (Torsional Vibration Damper)

Double Mass Type

Double Mass Type

Core Functions

The TVD reduces torsional vibration and noise from the crankshaft of the engine.

It transmits power to auxiliary equipment such as generators and water pumps.

Key Features

With its own rubber mixing technology, optimized rubber specifications can maintain rubber characteristics even in extreme environments to achieve continuous performance of the product.

With the experience of developing TVD in various materials, We can provide you with products that suit your needs.

It can be interpreted on its own, so you can suggest several specifications.
Hub-Press Type

Hub-Press Type

Core Functions

The TVD reduces torsional vibration and noise from the crankshaft of the engine.

It transmits power to auxiliary equipment such as generators and water pumps.

Key Features

With its own rubber mixing technology, optimized rubber specifications can maintain rubber characteristics even in extreme environments to achieve continuous performance of the product.

With the experience of developing TVD in various materials, We can provide you with products that suit your needs.

It can be interpreted on its own, so you can suggest several specifications.
Hub-Laser Welding Type

Hub-Laser Welding Type

Core Functions

The TVD reduces torsional vibration and noise from the crankshaft of the engine.

It transmits power to auxiliary equipment such as generators and water pumps.

Key Features

With its own rubber mixing technology, optimized rubber specifications can maintain rubber characteristics even in extreme environments to achieve continuous performance of the product.

With the experience of developing TVD in various materials, We can provide you with products that suit your needs.

It can be interpreted on its own, so you can suggest several specifications.
Bonded (Non Heating) Type

Bonded (Non Heating) Type

Core Functions

The TVD reduces torsional vibration and noise from the crankshaft of the engine.

It transmits power to auxiliary equipment such as generators and water pumps.

Key Features

With its own rubber mixing technology, optimized rubber specifications can maintain rubber characteristics even in extreme environments to achieve continuous performance of the product.

With the experience of developing TVD in various materials, We can provide you with products that suit your needs.

It can be interpreted on its own, so you can suggest several specifications.
Bonded (Heating) Type

Bonded (Heating) Type

Core Functions

The TVD reduces torsional vibration and noise from the crankshaft of the engine.

It transmits power to auxiliary equipment such as generators and water pumps.

Key Features

With its own rubber mixing technology, optimized rubber specifications can maintain rubber characteristics even in extreme environments to achieve continuous performance of the product.

With the experience of developing TVD in various materials, We can provide you with products that suit your needs.

It can be interpreted on its own, so you can suggest several specifications.

PFS

PyungHwa Fuel cell Solution

PFS specializes in eco-friendly, sustainable mobility components, including fuel cell gaskets, leveraging high heat resistance and advanced sealing technology to meet the demanding requirements of the hydrogen fuel cell market.

Since 2020
$57M revenue
210 employees
1 plant

PFS Product

Stack

Fuel Cell Gasket (Metal)

Fuel Cell Gasket (Metal)

Core Functions

It conducts seals the reactant gases (hydrogen and oxygen) and coolant, while maintaining uniform surface pressure inside the stack.

Key Features

We ensure product performance through in-house developed rubber materials and design capabilities.

With large-scale production facilities, we respond to customer demands swiftly and reliably.

Based on our extensive experience in hydrogen fuel cell component development, we provide end-to-end support from in-house design to manufacturing.
Fuel Cell Gasket (Graphite)

Fuel Cell Gasket (Graphite)

Core Functions

It conducts seals the reactant gases (hydrogen and oxygen) and coolant, while maintaining uniform surface pressure inside the stack.

Key Features

We ensure product performance through in-house developed rubber materials and design capabilities.

With large-scale production facilities, we respond to customer demands swiftly and reliably.

Based on our extensive experience in hydrogen fuel cell component development, we provide end-to-end support from in-house design to manufacturing.

PHK

PyungHwa Ki Gong

PHK specializes in manufacturing die casting products and precision components for the automotive and electronics industries, utilizing advanced machining technology and rigorous quality control to deliver high-performance, high-reliability products that meet global standards.

Since 1985
$117M revenue
140 employees
1 plant

PHK Product

Aluminum Die-Casting

Cooling Fan Motor

Cooling Fan Motor

Core Functions

The BLDC motor is a key component responsible for cooling the vehicle’s power source. It operates the motor to regulate the temperature of the cooling circulation fluid, maintaining the engine at an optimal temperature and preventing overheating.

Key Features

Our precision manufacturing processes and the use of carefully selected materials ensure outstanding cooling performance and energy efficiency in our cooling fan motors.
ECU Heat Sink

ECU Heat Sink

Core Functions

This component effectively dissipates heat generated by the Electronic Control Unit (ECU), helping to ensure the stable operation of the device.

Key Features

The production of heat sinks with intricate geometries is achieved with precision, simultaneously ensuring exceptional thermal conductivity and robust structural integrity.
eM Console Flange

eM Console Flange

Core Functions

The stator block is a component inside the electric motor that supports the stator coils, maximizing electromagnetic efficiency and providing structural stability to the motor. Additionally, it aids in heat dissipation to prevent motor overheating, thereby enhancing performance and durability.

The eM console flange is a connecting part designed to securely mount the electric motor and drivetrain components to the vehicle console structure. It effectively absorbs and disperses vibrations and shocks while maintaining the structural rigidity of the vehicle's interior space.

Key Features

Fabricated using precise casting and machining techniques, this product simultaneously maximizes electromagnetic efficiency and ensures motor structural stability.

Leveraging sophisticated machining techniques, we produce components designed for robust installation, thereby offering highly reliable products that effectively absorb and dissipate vibration and shock, enhancing the structural rigidity within the vehicle.
Stator Block

Stator Block

Core Functions

The stator block is a component inside the electric motor that supports the stator coils, maximizing electromagnetic efficiency and providing structural stability to the motor. Additionally, it aids in heat dissipation to prevent motor overheating, thereby enhancing performance and durability.

The eM console flange is a connecting part designed to securely mount the electric motor and drivetrain components to the vehicle console structure. It effectively absorbs and disperses vibrations and shocks while maintaining the structural rigidity of the vehicle's interior space.

Key Features

Fabricated using precise casting and machining techniques, this product simultaneously maximizes electromagnetic efficiency and ensures motor structural stability.

Leveraging sophisticated machining techniques, we produce components designed for robust installation, thereby offering highly reliable products that effectively absorb and dissipate vibration and shock, enhancing the structural rigidity within the vehicle.
Front Top Pot

Front Top Pot

Core Functions

The air suspension top mount connects the vehicle body to the air suspension module, effectively absorbing shocks and vibrations transmitted from the road surface during driving. It further enhances durability and ride comfort by securely fixing the upper part of the suspension and distributing the load.

Key Features

We apply precise mold technology to effectively absorb shocks and vibrations during driving, maximizing durability and ride comfort.
Rear Top Pot

Rear Top Pot

Core Functions

The air suspension top mount connects the vehicle body to the air suspension module, effectively absorbing shocks and vibrations transmitted from the road surface during driving. It further enhances durability and ride comfort by securely fixing the upper part of the suspension and distributing the load.

Key Features

We apply precise mold technology to effectively absorb shocks and vibrations during driving, maximizing durability and ride comfort.
Rear Suspension Upper Bracket

Rear Suspension Upper Bracket

Core Functions

The rear suspension upper bracket firmly secures the top of the suspension to the vehicle body or subframe, effectively transmitting and dispersing loads and shocks encountered during driving. It also maintains the suspension’s position and angle to ensure stable driving performance and durability.

Key Features

Through the application of precise mold technology, we ensure a robust connection designed to effectively absorb shocks and vibrations encountered during operation, thereby maximizing both durability and ride comfort.
A/C Compressor

Air Conditional Compressor

Core Functions

A component of the air conditioning compressor that converts rotational energy into reciprocating energy to compress the refrigerant.

Key Features

Leveraging our expertise in precision casting and machining, we are capable of manufacturing high-quality products for a diverse range of industrial sectors.
Engine Mount Support Bracket

Engine Mount Support Bracket

Core Functions

The engine mount bracket is a component that connects the vehicle body to the engine mount, firmly supporting the engine’s weight and vibrations while effectively controlling excessive engine movement. By doing so, it reduces the transmission of vibrations and shocks from the engine to the vehicle body, enhancing structural stability and ride comfort.

Key Features

Engine mount brackets are manufactured through the integrated application of pressing, welding, and electrodeposition processes. Precision pressing techniques ensure exceptional dimensional accuracy, while robust welding and electrodeposition treatments enhance durability and corrosion resistance, thereby providing stable support for engine weight and vibration.
Transfer Cover

Transfer Cover

Core Functions

This component receives power from the transmission and precisely distributes and controls it to the front and rear wheels. It adjusts the drive ratio according to road conditions or selected driving modes, thereby enhancing both driving stability and traction.

Key Features

Exceptional dimensional accuracy and surface quality are achieved through precise mold design and advanced die-casting processes.

The utilization of optimized production processes and appropriate materials ensures superior wear resistance and heat resistance, enabling the product to maintain stable performance over an extended period.
Transfer Case

Transfer Case

Core Functions

This component receives power from the transmission and precisely distributes and controls it to the front and rear wheels. It adjusts the drive ratio according to road conditions or selected driving modes, thereby enhancing both driving stability and traction.

Key Features

Exceptional dimensional accuracy and surface quality are achieved through precise mold design and advanced die-casting processes.

The utilization of optimized production processes and appropriate materials ensures superior wear resistance and heat resistance, enabling the product to maintain stable performance over an extended period.

PHENG

PyungHwa ENG

PHENG specializes in designing and manufacturing production equipment and rubber press molds for automotive mass production, possessing expertise in special mold fabrication for fuel cell components and extensive experience in developing automated production systems.

Since 2004
$22M revenue

PHENG Business

Mold Manufacturing

NVH
NVH
Sealing
Sealing
Die Casting
Etc.

Machinery Manufacturing

Robot Vulcanizaion Process Simulation
Real-time Quality Status
History Search & Analysis
Defect Tracking

Design Tool

IRON CAD & AUTO CAD
UG NX
CAMTOOL & Veri-Cut
AnyCasting
Simulation

Machining

Equipment	Manufacturer	Model	Quantity
FMC	Yamaki Mazak	FH-10800	2
Turn Mill	Yamaki Mazak	Intergrex-3St	3
High Speed MCT	Makino 20K / 30K / 40K Rpm	F5 / V33 / IQ500	7
MCT	Hyundai WIA	KF5600	2
CNC Lathe	Hwacheon / WIA	Ecostat-2, Etc.	9
Wire Cutting / EDM	Sodick	AL600P / AG60L	2
Laser Marking	K2 Laser System	Special Order	1
Etc.	Lathe / Milling / Drilling / Gun Drill	-	-

Inspection

Equipment	Manufacturer	Model	Quantity
CMM (3D Measuring Instrument)	Mitutoyo	C9168 & Other	2
3D Scanner	Dukin	Victor	1
Image Meter	Keyence	IM-7030	1
X-Ray Coating Gage	Micro Pioneer	XRF-2000H	1

Vision Inspection Machine

By introducing a vision inspection machine into the product inspection process, it is preventing the leakage of defects by detecting fine defects that are difficult to identify with the naked eye.

Robotic Automation

By automating robots in manual operation lines, we are responding to productivity improvement, quality stabilization, and manpower shortage of manufacturing lines

PHCMB

PyungHwa CMB

PHCMB specializes in producing automotive and industrial rubber compounds using high-quality, high-precision compounding technology, providing customized material development services tailored to meet specific customer needs.

Since 1993
$90M revenue

PHCMB Business

Hose Products

Application	Material	Rubber
Fuel	ECO	Rubber Hose–Fuel Vapor Line (Unleaded) Compound Double Extruded Rubber–Fuel Rank Filler Neck Compound
	CSM	Rubber Hose–Fuel Vapor Line (Unleaded) Compound Double Extruded Rubber–Fuel Rank Filler Neck Compound
	NBR	Double Extruded Rubber–Fuel Rank Filler Neck Compound
	FKM	Rubber Hose–Fuel Vapor Line (Unleaded) Compound Double Extruded Rubber–Fuel Rank Filler Neck Compound Hose–Fuel Vapor Line Compound Hose–Fuel Tank Filler Neck Compound
	HNBR	Fuel Hose (Low Pressure Special NBR Type) Compound
	ECO	Fuel Hose (Fluorine Rubber Type) Compound
Power Steering	CSM	Ventilation Rubber Hose Standard (Oil Pressure Control) Compound
	NBR	Rubber Hose–Power Steering Compound
	ACM	Rubber Hose–Power Steering Compound
Vacuum	ECO	Rubber Hose–Engine PCV Vacuum Compound
	AEM
	FKM
Heater	EPDM	Heat-Resistant, High Pressure Hose–Heater Compound
LPG	ECO	Automotive LPG Injection System–Low Pressure Hose Compound
Drain	AEM	Acryl One-Piece Rubber Hose Compound
Oil Cooler	AEM	Heat / Cold-Resistant A/T Oil Cooler Compound
Radiator	EPDM	Heat-Resistant Rubber Hose–Radiator Compound
Water	EPDM	Rubber Hose–Engine Water Compound

AVS Products

Application	Material	Rubber
Powertrain	NR	Soft Rubber (Vulcanization) Mount Compound
	NR+BR	Soft Rubber (Vulcanization) Mount Compound
	NR+BR	Mount Compound
	NR	Mount Compound
Suspension & Chassis	NR	Mount Compound
	NR+BR	Mount Compound
	NR	Suspension, Bush, Mount Compound
	NR+BR
	NR+SBR
	NR+RNR

Industrial Products

Category	Material	Parts
Belt & Wiper	HNBR	Timing / Micro Belt Wiper Blade
	CR
	NR
Oil Resust & O-Ring	CR	Dust Cover O-Ring Grommat
	NBR
	FKM
	EPDM
Construction	NR	Bridge Connecting Device Elasticity Plate For Earthquake-Resistance (One Piece Type)
Construction	SBR
Industrial Hoses	NBR	High Pressure Hoses
	SBR
	CR
	EPDM

PyungHwa R&D

R&D Center

PH R&D Center

Since 1987

POS R&D Center

Since 1994

System Simulation

Build Up Model

Model Correlation

System Simulation

Design & Analysis

DFMEA

Design

FE analysis

Development & Validation

Design Validation

Vehicle NVH Validation

Production Validation

Engineering Capability

Program				No. of Licenses	Total	Function
CAD	PH	CATIA V5	R2019	23	59	Design
	PH	UG (NX) 9.0		11
	POS	Auto CAD		6
		CATIA V5	R2019	1
		Creo (Pro-E)	10.0 M040	18
CAE	HyperWorks			4	16	FEA
	ANSA			1
	Marc			2
	ABAQUS			5
	fe-safe			1
	Amesim			1
	Moldex3D			2
Simulation	Adams			1	4	System Analysis
	MATLAB			1
	EMSA			1
	Amesim			1

R&D Process

Customer Requirement

System Level

Product Requirements

Characteristic
Durability

Product Design

Product Size
Type (Convention / Hydro)
Manufacturing Method

Component Level

Component Requirements

Material / Strength
Weight

Component Design

Method

Customer Validation

System Level

Product Validation

Characteristic Test
Durability Test
NVH / R&H Test

Component Level

Component Validation

Material Test
Strength / Durability Test
Compression Set Test

Pioneering the Next Era of Mobility.

Eco-Friendly
Vehicle

Battery Weight

→Decreased Ride Quality

Road Noise Matters
Light Weight &
High Power

Lower Body Rigidity

→More Vibration

High Output

→More Vibration Transfer
Shifting Consumer
Expectation

Focus on Emotional Quality

Driving Performance & Comfort
Platform
Integration

Various Usage Environments

→Stable Functionality

Road Noise Matters
Autonomous Driving &
High Performance Vehicle

Precise Control

Refined Ride Quality

Vibration Suppression

→Protection of Sensors & Control Systems

Past

Conventional & Hydro

2 Way / Dual Compound

Low Dynamic Stiffness / High Damping
Present

High Performace Product

Advanced Hydro

Air Suspension
Future

Active Product

MRE (Magneto Rheological Elastomer)

ECM (Electronic Control Mount)

R&D Facility

PH R&D

4-Post Road Simulator
Multi Axial Simulation Table
Anechoic 4WD Dyno
Tri-Axial Tester

Facility List
Anechoic Chamber & 4WD Chassis Dynamometer
4-Post Road Simulator
Sound Quality Noise Analysis
Siemens Test Lab (Noise & Vibration Analysis)
4-Axial Tester / Tri-Axial Tester
Uni-Axial Test Stand / Bi-Axial Test Stand
Characteristic Tester / Creep Tester
High Frequency Dynamic Tester (*Special For EV Mount)
Static & Dynamic Tester / Leak Tester / Mooney / UTM
RLD Durability Tester / Bi-Axis Durability Tester
Chassis Module Tester / RCR / Heat Aging Machine

POS R&D

High-Speed Rotary Torque
Thermal Shock Tester
Rotary Tester
TGA / DSC / SEM / EDS

Facility List
Rotary Tester
Torque Measurement Tester Sound Quality
Thermal Shock Tester
Mixing Roller (10”, 8”) 4-Axial
Kneader (1L, 3L, 7L)
Curing Machine (50T, 80T)
TGA (Thermogravimetric Analysis)
DSC (Differential Scanning Calorimeter)
ATR (Attenuated Total Reflection)
SEM / EDS (Scanning Electron Microscopes / Energy Dispersive X-Ray Spectrometer)
FT-IR (Fourier Transform Infrared Spectroscopy)

PyungHwa Group, Trust and Innovation.

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PyungHwa Group at a Glance

PH

Since 1950

Products

Sales

POS

Since 1977

Products

Sales

PNDT

Since 2012

Products

Sales

PFS

Since 2020

Products

Sales

PHK

Since 1985

Products

Sales

PHCMB

Since 1993

Products

Sales

PHENG

Since 2004

Products

Sales

Business Portfolio

Sealing

Hose

Metal

AVS

TVD

Rubber Compounds

Hydro Bush

Air Strut Complete & Air Spring Assembly

SGR (Shaft Ground Ring)

Structure

Development

Raw Material

Production & Validation

Global Network

Korea

China

India

Europe

USA

Korea

China

India

Europe

USA

PH

PH Product

E-Powertrain

Motor Mount

Core Functions

Key Features

Hydro Motor Mount

Core Functions

Key Features

Powertrain

Engine Mount

Core Functions

Key Features

Transmission Mount

Core Functions

Key Features

Roll Rod

Core Functions

Key Features

Suspension / Chassis

Air Strut Complete
& Air Spring Assembly