Wonkang Co., Ltd.

What Wonkang Co., Ltd. does

Wonkang Co., Ltd. (원강), operating commercially under the Roadbit brand, is a South Korea-based manufacturer specializing in aftermarket and replacement parts for diaphragm wall (slurry wall) equipment, trench cutters, roadheaders, and foundation drilling rigs. Its product portfolio centers on cutter teeth with tungsten carbide tips, BCF9 and BCF10 gearboxes, mud pumps, cutting wheels in D640-D1500 sizes (Standard and RSC variants), suction boxes, RCD roller bits, pick cutters for roadheaders, and auger teeth, all engineered for 100% compatibility with Bauer BC30, BC32, BC35, and BC40 equipment. Manufacturing began at the parts level in 1988 through the sister entity Wonkang Chogyeong (원강초경, founded 1973), with Wonkang Co., Ltd. separately incorporated in 2021 to consolidate global production, quality, and export operations; production runs from a Busan factory and a partner-operated Gimpo-si factory, supported by a Total Foundation R&D Center in Seoul's Magok district.

The business is structured as a B2B industrial parts supplier serving construction equipment operators, mining and tunneling contractors, and infrastructure engineering firms in more than 18 countries across North America, Europe, the Middle East, South Asia, and Southeast Asia. Revenue is generated through direct enterprise sales and regional channel partnerships, including IKSA Engineering in Turkey, DCS Techno in India (with a Chennai repair and parts center), Jinsung Enterprise in Korea, and a sister-company manufacturing partnership with Yujin Construction Machinery. Named enterprise customers include IKSA for the Melen Dam and Istanbul Kozlu Metrobus projects and Hassan Allam Construction in Egypt for large-scale infrastructure works. Pricing is not publicly disclosed and is negotiated by volume, equipment type, and contract terms, consistent with industrial aftermarket B2B conventions. The company also operates a separate Advanced Industrial Lubricants trading division holding Ministry of Environment hazardous chemicals license 202-240046, covering automotive, industrial, and military lubricant applications. Wonkang's competitive positioning relies on Korean manufacturing economics, proprietary hard-facing and tungsten carbide technologies (six registered patents, seven trademarks), ISO 9001/14001/45001 and CE certifications, and 450+ verified project-site performance references.

Name

Wonkang Co., Ltd.

Legal name

WONKANG Co.,Ltd.

Website

https://roadbit.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

Wonkang Co., Ltd. (Roadbit) is a South Korea-based manufacturer of aftermarket parts for diaphragm wall, trench cutter, roadheader, and foundation drilling equipment, offering 100% Bauer-compatible cutter teeth, gearboxes, mud pumps, cutting wheels, and pick cutters to construction and mining operators across 18+ countries.

Ownership category

akta.pro rank

Product category

Construction Equipment Parts - Foundation Drilling and Diaphragm Wall Components

NAICS

Construction Machinery Manufacturing (33312), Saw Blade and Handtool Manufacturing (332216)

SIC

Construction, Mining & Materials Handling Machinery & Equip (3530), Miscellaneous Chemical Products (2890)

akta.pro primary industry

Metal Cutting Tools, Tooling & Workholding (Cutters, Inserts, Chucks, Fixtures) (IMAHADAB)

akta.pro secondary industry

Aftermarket Fluids, Lubricants & Chemical Products Manufacturing (Oils/Coolants/Additives/Cleaners) (IMACANAK)

Keywords

• Diaphragm wall equipment parts
• Foundation drilling tools
• Trench cutter components
• Roadheader pick cutters
• Construction machinery parts

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment Parts Manufacturing: Manufactures and sells aftermarket parts for diaphragm wall equipment (BC32, BC35, BC40), roadheaders, and foundation drilling equipment. Products include cutter teeth, gearboxes, mud pumps, cutting wheels, pick cutters. Revenue generated through direct B2B sales to equipment operators globally. Primary markets: construction, mining, tunneling projects.
2. Industrial Lubricants: Chemical trading division specializing in high-quality oils and lubricants for automotive, industrial, and military applications. Products include engine oils, transmission fluids, precision machinery lubricants, and military-grade firearm lubricants. License number 202-240046 from Ministry of Environment for hazardous chemical sales.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Wonkang Co., Ltd. manufactures and sells aftermarket replacement parts for diaphragm wall (slurry wall) trench cutters and roadheader equipment under the Roadbit brand. Core products include tungsten carbide cutter teeth, BCF9/BCF10 gearboxes, mud pumps, cutting wheels (D640–D1500), RCD roller bits, roadheader pick cutters, and auger teeth, all engineered for 100% compatibility with Bauer BC30/BC32/BC35/BC40 equipment. The company also distributes industrial lubricants and oils through a chemical trading division for automotive, industrial, and military applications.

Product overview

Wonkang Co., Ltd. (Roadbit brand) is a Korea-based manufacturer specializing in diaphragm wall equipment parts for the construction and mining industry. The product portfolio centers on trench cutter and roadheader components, including Cutter Teeth, Gear Box (BCF9/BCF10), Mud Pump, Cutting Wheels (STD and RSC types in D640-D1500 sizes), Suction Boxes, RCD Roller Bits, Pick Cutters for roadheaders, Auger Teeth, and Mud Hoses. Products are 100% compatible with Bauer equipment (BC30, BC32, BC35, BC40) and manufactured with proprietary technologies including tungsten carbide components and plasma hard-facing. The company also operates an Advanced Industrial Lubricants division for chemical trading. Manufacturing began in 1988, serving 20+ countries with 500+ completed projects and 40+ partner companies.

Differentiator

Problem solved

Functional benefit

Brands

• Roadbit: Main commercial brand for diaphragm wall equipment parts including cutter teeth, gearboxes, mud pumps, and cutting wheels.

Products and services

• Cutter Teeth
• Gear Box (BCF9/BCF10)
• Mud Pump
• Cutting Wheel (STD and RSC)
• Suction Box (D640-D1700)
• RCD Roller Bit
• Roadheader Pick Cutter
• Auger Teeth
• Advanced Industrial Lubricants
• Mud Hose
• Gear and Bearing Parts

Quantifiable outcome

• 100% compatibility with Bauer BC-series diaphragm wall equipment (BC30, BC32, BC35, BC40, BCF9, BCF10)
• +3 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Six partnerships are on record, tiered core and minor.

• IKSA Engineering (Turkey)coreStrategic or Co-development Partner · 29 June 2024Turkish ground and foundation engineering specialist. Wonkang provides products for IKSA's major infrastructure projects including Melen Dam and Istanbul Kozlu Metrobus. Technical cooperation includes on-site visits, product application review, and Value Engineering optimization. IKSA serves as primary partner for Turkey market.
• DCS Techno (India)coreChannel Partner/ Reseller/ DistributorIndian distribution and service partner. Partnership includes establishment of repair and parts center in Chennai, India. Enables localized support for Indian market customers and roadshow activities.
• Yujin Construction Machinery (유진이렉션개발산업)coreStrategic or Co-development PartnerSister company and manufacturing partner. Collaborates on Gearbox BCF9/BCF10 and Mud Pump production. Joint participation in international exhibitions. Manufacturing Factory #2 operates under Yujin brand for additional capacity.
• Jinsung Enterprise (주식회사 진성엔터프라이즈)minorChannel Partner/ Reseller/ DistributorDomestic Korean distribution partner for roadheader market. Partnership agreement for domestic market sales activation and distribution of roadheader products.
• Korea Institute of Civil Engineering and Building Technology (KICT)coreStrategic or Co-development PartnerDesignated as KICT Family Company for land transportation R&D collaboration. Joint research on pick cutter development including rock excavation up to 100 MPa. KICT provides technical validation and access to testing facilities.
• Wonkang Chogyeong (원강초경)coreStrategic or Co-development PartnerSister company founded in 1973. Core partner in foundation drilling equipment parts with 34+ years of experience. Joint exhibition participation (Bauma, Conexpo) and technology development.

Scale indicators11 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Liebherr: German-Swiss global manufacturer of construction equipment including foundation drilling rigs and piling equipment. Broad incumbent offering overlapping capabilities across construction machinery portfolio while serving similar infrastructure customers.
• Boart Longyear: Global provider of drilling services and consumables for mining, energy, and infrastructure. Broad incumbent offering drilling tools and bits comparable to Wonkang's pick cutters and RCD roller bits, with overlapping customer base in rock excavation applications.
• XCMG: Chinese construction machinery manufacturer producing rotary drilling rigs, trench cutters, and foundation equipment. Broad incumbent competing in similar product categories with cost-competitive positioning relevant to Wonkang's value proposition.
• Sandvik Mining and Rock Solutions: Swedish global provider of mining and rock excavation equipment, tools, and services. Broad incumbent offering rock drilling tools and consumables comparable to Wonkang's roadheader pick cutters, with strong presence in tunneling and underground construction markets.
• Bauer Maschinen: German OEM that is the original manufacturer of BC30, BC32, BC35, BC40 diaphragm wall equipment and BCF9/BCF10 gearboxes for which Wonkang makes 100% compatible aftermarket parts. Directly comparable as the dominant player in the same product category whose installed base drives Wonkang's parts demand.
• Epiroc: Swedish global provider of mining and infrastructure equipment including rock drilling tools and underground equipment. Broad incumbent serving similar construction and mining customers with consumable parts portfolio comparable to Wonkang's pick cutters and cutting wheels.
• Sany Heavy Industry: Chinese global manufacturer of construction machinery including rotary drilling rigs and foundation equipment. Broad incumbent competing in foundation drilling category with significant scale advantages and cost-competitive positioning.

Direct peers

• Casagrande: Italian manufacturer of foundation drilling equipment, piling rigs, and diaphragm wall equipment. Directly comparable as a specialist OEM in the same foundation drilling category, with overlapping customer base in infrastructure and tunneling projects globally.
• Robit: Finnish manufacturer of drilling consumables including button bits, DTH hammers, and rock tools for foundation drilling and mining. Directly comparable as a specialist consumable parts manufacturer in the same drilling tools category serving construction and mining markets.
• Soilmec: Italian manufacturer of foundation drilling equipment including hydraulic crawler cranes, rotary rigs, and trench cutters for diaphragm walls. Directly competes in the same product category of foundation drilling and D-wall equipment, serving overlapping customers in global construction infrastructure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/roadbit_
• YouTubeyoutube.com/channel/UCVTGFd64JECfBfAlOFj4MAA
• Facebookfacebook.com/profile.php?id=100081782424722
• LinkedInlinkedin.com/company/wonkang-tungsten
• Instagraminstagram.com/roadbit1

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Wonkang Co., Ltd.