Kanzaki Kokyukoki

What Kanzaki Kokyukoki does

Kanzaki Kokyukoki (株式会社神崎高級工機製作所) is a Japanese precision machinery manufacturer founded in 1947 in Amagasaki, Hyogo Prefecture, and operating as a wholly-owned subsidiary of Yanmar Holdings Co., Ltd. The company designs and manufactures two integrated product lines: (1) hydraulic equipment, transmissions (transaxles, HST/HMT), marine gears, and electric equipment for off-highway applications, and (2) precision machine tools for gear processing (honing, grinding, shaving, chamfering, shaping) and vertical turning. Its gear factory, with 50+ years of history, produces approximately 4,000 types of gears annually using fully in-house processes including machining, heat treatment, and polishing. KANZAKI holds proprietary technologies including a world-first internal gear shaving machine (GSU180, 2012 Invention Grand Prize) and three Yanmar Invention Award Gold Prize winners (DUP dual piston pump 2009, KXH hydraulic 4WD 2011, TZT zero-turn mower transmission 2014). The company is METI-certified as a 2020 Global Niche Top 100 company and holds ISO 9001 (1994) and ISO 14001 (1999) certifications.

KANZAKI's primary customer is the Yanmar Group ecosystem for agricultural machinery, construction equipment, and marine vessels, with secondary customers including zero-turn lawn mower OEMs, marine vessel manufacturers, and industrial gear buyers serving automotive, aerospace, and energy applications. Sales are executed via direct B2B channels, quote-based pricing, and multi-year contracts. Distribution is supported by three wholly-owned overseas subsidiaries — TUFF TORQ Corporation (Tennessee, USA, 1989), TRANSAXLE MANUFACTURING OF AMERICA Corporation (South Carolina, USA, 2001), and P.T.YKT GEAR INDONESIA (Karawang, Indonesia, 2001) — alongside Yanmar Group's global network. Marine gears are produced under Ministry of Transport Ship Safety Law designation (since 1983).

The business model is B2B hardware sales across five revenue streams: hydraulic equipment & transmissions, marine gears, machine tools (with after-sales service and spares), electric equipment, and precision gear components. R&D and capital investment are anchored at the Amagasaki headquarters, which houses 9 facilities including a 2,500 m² test course, the 2022-completed K-TEC EL (electric product evaluation) and K-TEC TM/T-TEC (performance testing) buildings, and the in-house gear factory. A 2002–2003 restructuring transferred agricultural and construction machinery main businesses to Yanmar and brought hydraulic equipment, transmission, and marine gear divisions into KANZAKI, establishing the current focused components-manufacturer identity. The company participates in the Yanmar Group's "GREEN CHALLENGE 2050" decarbonization program, with electrification of off-highway drivetrains as the most explicit forward product direction.

Name

Kanzaki Kokyukoki

Legal name

株式会社神崎高級工機製作所

Website

https://kanzaki.co.jp

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Kanzaki Kokyukoki is a Japanese precision machinery manufacturer and Yanmar Holdings subsidiary producing hydraulic equipment, transmissions, marine gears, electric equipment, and gear-processing machine tools for agricultural, marine, lawn care, and industrial OEM customers worldwide.

Ownership category

akta.pro rank

Product category

Precision Machinery Manufacturing (gear processing machine tools and hydraulic/transmission components)

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), Fluid Power Pump and Motor Manufacturing (333996), Machine Tool Manufacturing (333517), Precision Turned Product Manufacturing (332721)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), Special Industry Machinery, Nec (3559), Machine Tools, Metal Cutting Types (3541)

akta.pro primary industry

Rotorcraft Transmissions, Gearboxes & Drive Systems (IMABABAG)

akta.pro secondary industry

Filling & Dosing Machines (Liquid/Powder/Solid) (IMAHAOAF)

Keywords

• Gear processing machines
• Precision machine tools
• Hydraulic transmissions
• Marine gear manufacturing
• Agricultural transmission components

Headquarters

HQ city

Amagasaki

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hydraulic Equipment & Transmissions: Manufacture and sale of hydraulic equipment including piston pumps, piston motors, hydraulic valves, and transmissions (transaxles, HST/HMT) for agricultural machinery, construction equipment, and lawn care equipment (zero-turn mowers, combine harvesters).
2. Marine Gears: Production of commercial and recreational marine gears, including the YXH series large marine gear, for boat and ship propulsion systems. Governed by Ship Safety Law with Ministry of Transport manufacturing facility certification since 1983.
3. Machine Tools: Manufacture and sale of precision machine tools including gear processing machines (gear honing, gear grinding, gear shaving, gear chamfering, gear shaping), vertical lathes, non-circular processing machines, aluminum wheel processing machines, and other dedicated machines. After-sales service and spare parts also provided.
4. Electric Equipment: Electric equipment products manufactured and sold, with dedicated test facilities (K-TEC EL) supporting evaluation and development.
5. Gear Components: Precision gear components (approximately 4,000 types annually) including transmission gears, bevel gears for agricultural machinery, small engine gears, gas turbine gears, marine engine gears, and clutch gears — sold as both standalone components and integrated into assemblies.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels7 records

Core offering

Kanzaki Kokyukoki manufactures and sells two main product lines: (1) precision gear-processing machine tools (gear honing, gear grinding, gear shaving, gear chamfering, gear shaping, vertical lathes, non-circular processing, aluminum wheel processing, and other dedicated machines) and (2) hydraulic/transmission/marine components (transaxles, HST/HMT transmissions, piston pumps including the DUP, piston motors, hydraulic valves, YXH-series large marine gears, and electric equipment). The company leverages 75+ years of integrated expertise in machine tools, gears, and hydraulics, producing approximately 4,000 types of gears annually in-house, with machine tools sold to manufacturers and components sold to OEMs in agricultural, marine, construction, lawn care, and industrial machinery markets.

Product overview

Kanzaki Kokyukoki is a comprehensive precision machinery manufacturer producing two main product lines: Machine Tools and Hydraulic/Transmission/Marine Components. The Machine Tools division manufactures gear processing equipment including gear honing machines (FF260, FD300/FE300), gear grinding machines (GB150, GB260), gear shaving machines (SU180, SX350), gear chamfering machines (DU250), and gear shapers (CA100), as well as vertical lathes (MV5, PN5, NV22, SH200) for machining automotive parts and aluminum wheels. The Hydraulic/Transmission division produces transaxles, HST/HMT systems, piston pumps/motors, marine gears (including YXH series), hydraulic valves, and electric equipment for agricultural machinery, construction equipment, and marine vessels. The company leverages over 50 years of gear manufacturing expertise integrated with its machine tool production, and operates under Yanmar Holdings as part of the YANMAR GREEN CHALLENGE 2050 environmental initiative.

Differentiator

Problem solved

Functional benefit

Products and services

• FF260 Gear Honing Machine A high-performance gear honing machine for industrial gear manufacturers, capable of small crossing-angle machining at the world's highest-level grinding wheel rotation speed.
• FD300/FE300 Gear Honing Machines Best-selling gear honing machines optimized for inline automation, featuring built-in motors for a compact grinding head and a reduced footprint, sold to industrial manufacturers.
• GB260 Gear Grinding Machine Multi-column gear grinding machine for industrial customers that improves work efficiency and reduces changeover time.
• GB150 Compact Gear Grinding Machine Compact gear grinding machine with the industry's smallest footprint in its class, designed for gears up to 150 mm outer diameter.
• SU180 Internal Gear Shaving Machine World's first internal gear shaving machine, developed for finishing tooth faces of internal gears in planetary gear reducers used in automatic transmissions. Awarded the 2012 Invention Grand Prize by the Japan Invention Promotion Association.
• SX350 Gear Shaving Machine Latest-model gear shaving machine with 60+ years of accumulated technology, more compact and user-friendly, with improved rigidity.
• DU250 Gear Chamfering Machine Space-saving gear chamfering machine (780 mm width) with an energy-efficient, hydraulic-free design and one-touch cutter exchange.
• CA100 Gear Shaper Compact general-purpose gear shaper with integrated functions, suitable for inline automation with easy work loading/unloading.
• MV5 Vertical Lathe Vertical lathe with an angular slide design for space savings and improved chip disposal, featuring high-speed, high-precision machining with a comb-type tool post.
• PN5 Non-Circular Processing Machine Non-circular high-precision external diameter machining center using linear motor drive for Y-axis synchronization, with a 2.0 m² floor footprint.
• NV22 Aluminum Wheel Processing Machine Vertical lathe for processing automotive aluminum wheels up to 22 inches, with 2-slide 4-axis control and a high-rigidity spindle.
• SH200 Dedicated Machining Equipment High-precision machining equipment for pin-hole inner diameter processing, capable of straight-to-conical machining with optional diameter correction.
• Transaxles Transmission/transaxle products for agricultural machinery (tractors, tillers, combine harvesters, rice transplanters) and construction equipment, sold to OEMs such as the Yanmar Group.
• HST / HMT Hydrostatic Transmissions Hydrostatic Transmission (HST) and Hydro-Mechanical Transmission (HMT) systems for power transmission in off-highway applications.
• Piston Pumps (incl. DUP Dual Piston Pump) Piston pumps for hydraulic power generation, including the proprietary DUP (Dual Piston Pump) — awarded the Yanmar Invention Award Gold Prize in 2009.
• Piston Motors Piston motor products for hydraulic power transmission in off-highway and industrial equipment.
• Marine Gears (YXH Series large marine gears) Large marine gears, including the YXH Series developed in 2010, for commercial and recreational vessels; certified under Japan's Ship Safety Law (manufacturer designation since 1983).
• Hydraulic Valves (incl. SWT-8) Hydraulic control valves (including SWT-8) for various hydraulic system applications.
• Electric Equipment Electric equipment products developed for carbon-free society initiatives, evaluated at the dedicated K-TEC EL electric product test building completed in 2022.
• Twin IHT (Compact Integrated Hydrostatic Transmission) Compact Twin Integrated Hydrostatic Transmission developed in 2008 for zero-turn riding lawn mowers, sold to lawn and turf-care equipment OEMs.
• TZT Zero-Turn Riding Mower Transmission Zero-Turn Riding Mower Transmission (TZT) for zero-turn riding mowers; awarded the 2014 Yanmar Invention Award Gold Prize.
• KXH Hydraulic 4-Wheel Drive System Hydraulic 4-Wheel Drive (KXH) system for off-highway and agricultural equipment; awarded the 2011 Yanmar Invention Award Gold Prize.

Quantifiable outcome

• Approximately 4,000 types of gears manufactured annually at the gear factory
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Partnerships

Four partnerships are on record, tiered core.

• P.T.YKT GEAR INDONESIAcoreStrategic or Co-development Partner · 1 January 2001Wholly-owned Indonesian subsidiary established in 2001. New gear factory opening ceremony held in Karawang, Indonesia in 2016. Handles gear manufacturing for the Southeast Asian market, extending KANZAKI's gear production capabilities internationally.
• TRANSAXLE MANUFACTURING OF AMERICA CORPORATIONcoreStrategic or Co-development Partner · 1 January 2001Wholly-owned U.S. subsidiary established in 2001 in South Carolina, USA. 20th anniversary ceremony held in 2021. Handles transaxle manufacturing for the North American market, complementing TUFF TORQ's operations in Tennessee.
• TUFF TORQ CORPORATIONcoreStrategic or Co-development Partner · 1 January 1989Wholly-owned U.S. subsidiary established in 1989 in Tennessee, USA. First Japanese company to receive the Tennessee Governor's Award for Excellence in 1992. Factory expansion conducted in 2021. 25th anniversary ceremony held in 2014. Handles transaxle and transmission products for the North American market, and sells service parts for lawn mower products through its ordertree.com platform.
• Yanmar Holdings Co., Ltd.coreStrategic or Co-development Partner · 1 January 1947YANMAR GROUP COMPANY: Kanzaki Kokyukoki is a member of the Yanmar Holdings Group. Founded in 1947 by Magokichi Yamaoka, the founder of Yanmar Diesel Co., Ltd. (now Yanmar Holdings). The company operates as a component and equipment manufacturer within the group, producing hydraulic equipment, transmissions, marine gears, and machine tools for Yanmar agricultural machinery, construction equipment, and marine products. Yanmar Holdings exercises governance and the company participates in group-wide ESG initiatives including YANMAR GREEN CHALLENGE 2050.

Scale indicators6 records

Recent moves13 records

Expansion highlights5 records

Broad incumbents

• Parker Hannifin: Global motion and control technologies leader with hydraulic pumps, motors, valves, and drive systems serving mobile and industrial markets. Direct product overlap with Kanzaki hydraulics but at much larger scale and broader systems integration.
• ZF Friedrichshafen: Global driveline and chassis technology company producing transmissions, driveline components, and industrial drive technology. Overlaps Kanzaki's transmission business for off-highway and marine applications; operates at vastly larger scale.
• Eaton Corporation: Diversified global industrial manufacturer with significant hydraulics and vehicle drivetrain businesses overlapping Kanzaki's hydraulic and transmission portfolio. Much larger scale and broader portfolio than Kanzaki.
• Bosch Rexroth: Global hydraulics and motion-control leader offering piston pumps, motors, valves, and transmissions for mobile and industrial machinery. Direct product overlap with Kanzaki's hydraulic equipment line but operates at much larger scale and broader geographic footprint.
• Sumitomo Heavy Industries: Diversified Japanese industrial manufacturer with significant power-transmission and gearbox product lines (cyclo drives, precision reducers) overlapping Kanzaki's gear and transmission business. Larger scale and broader portfolio position it as a broad incumbent rather than direct niche competitor.

Direct peers

• Gleason Corporation: Global leader in gear manufacturing machines (hobbing, shaping, grinding, honing, shaving) and gear-metrology equipment — direct overlap with Kanzaki's machine tool product line (FF260, FD300/FE300, GB150/GB260, SU180, SX350, DU250, CA100).
• Bonfiglioli: Italian manufacturer of gearmotors, gearboxes, and drive systems for industrial automation, mobile machinery, and renewable energy. Comparable product portfolio in precision gears and drive systems, and similar mid-sized OEM-focused B2B positioning.
• Dana Incorporated: Global drivetrain and propulsion-systems supplier serving off-highway, commercial vehicle, and industrial markets with transmissions, gearboxes, and related components. Closely comparable in transmission/gearbox product category and OEM customer base.
• Nabtesco Corporation: Japanese precision-equipment manufacturer producing precision gears, hydraulic equipment, and motion-control components for industrial, aerospace, and mobility applications. Highly comparable to Kanzaki in product mix (gears, hydraulics, transmissions), Japanese heritage, and B2B OEM go-to-market motion.

Others

• Yanmar Holdings: Parent conglomerate and primary customer; while not a peer in the competitive sense, Yanmar is the anchor of Kanzaki's distribution and demand pipeline and any strategic decision at Yanmar directly shapes Kanzaki's trajectory.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCeL8iX9rVhLDJQTanoQRgEg
• Instagraminstagram.com/kk_kanzaki_yanmar?igsh=MXM4dGVneXltbnRraw%3D%3D&utm_source=qr
• LinkedInlinkedin.com/company/kanzaki-kokyukoki-mfg.-co.-ltd.

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 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 Kanzaki Kokyukoki