Sehwa

Name

Sehwa

Legal name

(주)세화 (Sehwa Co., Ltd.)

Website

https://sehwa.biz

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Railway Electrical Signal Systems

NAICS

Electrical Equipment Manufacturing (33531), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Electrical Equipment Manufacturing (3353)

SIC

Railroad Equipment (3743), Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Rail Asset Inspection, Monitoring & Diagnostics (Track Geometry, Wayside Sensors) (TLAJADAG)

akta.pro secondary industry

Rail Maintenance-of-Way (MOW) Equipment & Services (Tamping, Grinding, Renewal) (TLAJADAH)

Keywords

• Railway signal systems
• Railway electrical equipment
• Train control systems
• Point machine systems
• Railway infrastructure monitoring

Headquarters

HQ city

Daejeon

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Railway Electrical Equipment Sales: Sale of railway signal equipment including point machines, signals, adherence detectors, crossing alarms, and other electrical components for railway infrastructure.
2. Integrated Monitoring Systems: Supply and installation of integrated monitoring systems for railway electrical facilities including signal control, safety equipment, and power monitoring systems.
3. Construction and Engineering Services: Railway signaling and electrical construction works, basic and detailed design, supervision, and precision diagnostics/performance evaluation services.
4. After-Sales Service (A/S): Maintenance and after-sales service for installed railway equipment and systems. Contact numbers provided for service requests.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Sehwa designs, manufactures, and integrates railway electrical signal systems and equipment, including integrated monitoring platforms for train control and power devices, point machines with magnetic diagnostics, LED signals, crossing alarms, adherence detectors, and axle temperature detection units. The company supplies these safety-critical products to high-speed rail, general railway, and urban rail transit operators, complemented by construction, engineering, and after-sales maintenance services across the equipment lifecycle.

Product overview

Sehwa is a railway transportation management system specialist offering a comprehensive portfolio of products across integrated monitoring, electrical equipment support, point machine systems, crossing safety, signaling, and measurement equipment. The core offerings include the Integrated Monitoring System for real-time monitoring of train control systems and safety equipment; the Electrical Equipment Technical Support System for remote facility monitoring; and the Point Machine Functional Monitoring System for switch machine operation tracking. Key product lines include KPM-16 next-generation magnetic diagnostic point machines, adherence detectors, rail locking devices, LED signals, crossing security systems (smart and bridge-type alarms), drawing object detection devices, and measurement equipment. The company also provides specialized railway equipment including rechargeable rail drilling machines, LTE-R based control systems, axle temperature detection units, insulation resistance measurement systems, and fault prediction diagnostic technology using big data and machine learning. Mobile service equipment and data analysis units complement the technical support systems for field maintenance operations.

Differentiator

Problem solved

Functional benefit

Products and services

• Integrated Monitoring System (통합감시시스템) Railway traffic control center integrated monitoring system that monitors train control systems (ATC, IXL), safety equipment, and power devices in real-time for high-speed railways including Honam and Metropolitan high-speed lines.
• Electrical Equipment Technical Support System (전기설비기술지원시스템) Remote monitoring system for electrical equipment enabling maintenance personnel to monitor status and failures of signal control office equipment, substations, and transmission facilities from a central console, with coverage of general and high-speed line signal systems plus power transmission systems.
• Point Machine Functional Monitoring System (선로전환기 기능감시시스템) Real-time monitoring system that tracks the operation status of point machines and adherence detectors for general and high-speed railways, supporting NS-type, MJ81-type, and Hydrosta-type point machines.
• KPM-16 Next-generation Magnetic Diagnostic Point Machine (차세대 자기진단장치 선로전환기 KPM-16) Point machine that changes railway vehicle track routes using magnetic clutch technology in place of temperature-sensitive clutches, with a built-in magnetic diagnostic device providing real-time condition monitoring and improved reliability.
• Adherence Detector (밀착검지기) Safety device installed on the basic rails of railway branches that detects close contact state between tongue rail and basic rail during point machine switching; available in single and double system configurations with distance detection capability.
• Rail Locking Device (레일쇄정장치) Device that forcibly maintains close contact between the tongue rail and fixed rail during point machine conversion motion using a direct locking method, improving point machine stability over indirect locking designs.
• Smart Alarm System (스마트 경보기) Crossing safety facility that warns pedestrians and vehicles before entering railroad crossings through restricted-height alarm devices, guide signs, and warning indicators to prevent safety accidents.
• Bridge-type Alarm System (가교형 경보기) Crossing safety facility that integrates upright alarms and height limiters for pedestrian and vehicle safety, featuring standardized signal equipment installation and hot-dip galvanized steel pipe construction for durability.
• LED Signal (LED형 신호기) Railroad signal product that uses high-brightness LED arrays instead of traditional filament bulbs; compatible regardless of LED unit color, with straightforward replacement and maintenance.
• Drawing Object Detection Device (끌림물체 검지장치) Safety device that detects parts dropped from or caught by trains to prevent damage to track facilities and derailments, featuring an automatic return mechanism, dual sensor technology with self-diagnostic function, and real-time monitoring.
• Point Machine Switching Force Measurement Device (선로전환기 전환력 측정기) Device that automatically measures switching force, operation time, voltage, and current of point machines through sensors; supports NS and MJ81 type point machines with custom-manufactured sensors for precision measurement.
• Signal Relay Tester (신호용 계전기 시험기) Inspection device that measures contact resistance and coil resistance of signal relays to identify electrical defects and prevent failures in advance, supporting five relay types including non-pole, cathode, small non-pole/polar, control relay, and circuit controller.
• Rechargeable Rail High-Speed Drilling Machine (충전식 레일 고속천공기) Battery-powered rail drilling machine for railway field work, weighing 13.5 kg with the ability to drill holes in approximately 30 seconds; features portability, no fuel or power cable required, and environmental friendliness, with a buffer supporting up to 26 drillings.
• LTE-R Based Signal Facility Control (LTE-R 기반 신호설비 제어) Signal facility control and maintenance technology based on the LTE-R railway wireless network, enabling remote operation and monitoring of signal infrastructure.
• Axial Temperature Detection Unit / Hot Box Detector (차축온도검지장치 HBD) Hot Box Detector (HBD) that detects axle temperature using an infrared sensor and electronic pedal; capable of detecting at speeds up to 500 km/h with a 4-pixel multifocal IR sensor, DC motor monitoring, and a maximum detection distance of 45 mm.
• Insulation Resistance Measurement System (절연저항 측정시스템) Real-time live line insulation resistance measurement system for railway signal facilities that measures and collects insulation resistance of power cables, stores data in a database, and detects/predicts leakage for maintenance efficiency.
• Fault Prediction Diagnostic Technology (고장예측진단 기술) Big data-based fault prediction diagnostic technology that uses intelligent big data analysis combined with machine learning techniques to predict facility failures in railway infrastructure.
• High-Speed Rail Interlocking System (고속철도 연동장치) High-speed rail interlocking system that interacts with ATC (Automatic Train Control) and CTC (Centralized Traffic Control) to ensure absolute safety and control train routing.
• Mobile Service Equipment (모바일 서비스장치) Wireless communication-based system that enables real-time monitoring of electrical equipment technical support system screens at maintenance sites for both general and high-speed lines.
• Data Analysis Unit (데이터 분석장치) System that builds a data warehouse based on the electrical equipment technical support system database and delivers various analysis information for efficient prevention and maintenance.
• Railway Signaling Construction and Engineering Services (건설·시공사업 및 엔지니어링사업) Railway signaling and electrical construction works, basic and detailed design, supervision, and precision diagnostics/performance evaluation services delivered alongside Sehwa's hardware product offerings.
• After-Sales Service (A/S) for Railway Equipment Maintenance and after-sales service for installed railway equipment and systems, accessible via dedicated A/S contact channels (+82-80-939-7070, +82-10-8833-8461/8463/8437).

Quantifiable outcome

• Detection speed up to Max 500Km/h for HBD wheel detection systems
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Thales (Transportation): Global rail signaling and CBTC/ETCS major with significant Korean and Asian references; competes on interlocking, ATC and wayside monitoring where Sehwa also supplies.
• Siemens Mobility: Global rail signaling and ETCS/ATC incumbent with deep Korean references; competes directly on high-speed rail ATC, interlocking and wayside monitoring tenders where Sehwa positions its integrated platforms.
• Alstom: Global rail signaling and rolling stock major with a strong Korean presence; competes in interlocking, CBTC/ATC, and increasingly in predictive maintenance services that overlap with Sehwa's diagnostic portfolio.
• CRRC Corporation: Chinese state-backed rail equipment giant with rapidly expanding signaling and wayside-monitoring offerings; relevant competitor for any Asian or emerging-market tenders Sehwa might target.
• Hitachi Rail: Global rail signaling and digital mobility provider with ETCS and asset-monitoring offerings analogous to Sehwa's integrated monitoring system for high-speed lines.

Regional players

• LS Electric: Korean electrical equipment major whose power distribution, substation, and T&D portfolio overlaps with the signal-power side of Sehwa's integrated monitoring business, particularly for high-speed rail substations.
• Hyundai Rotem: Korean rolling stock and rail systems manufacturer that supplies complete trains and increasingly integrated signaling subsystems to KORAIL — adjacent rather than direct, but competes for the same infrastructure wallet on KTX/EMU programs.
• Toshiba Infrastructure Systems & Solutions: Japanese rail signaling, traction, and power-electronics supplier relevant to Korean operators as an Asia-Pacific competitor with comparable product breadth in point machines, signals and monitoring.

Others

• Stadler Rail: Swiss rolling stock and signaling supplier active in Korean light-rail and EMU tenders; less direct overlap with Sehwa's signaling portfolio but competes for adjacent rail-electronics budget in Korea.

Direct peers

• Woojin Industrial Systems: Korean rail signaling and safety equipment manufacturer producing point machines, ATP/ATC, and interlocking systems for KORAIL and metro operators — the closest head-to-head competitor to Sehwa in the domestic railway electrical niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sehwa

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sehwa