• Assembly, Sub-Assembly
  • Functional Component, Equipment
  • Part Machining (Airframe)
  • Tooling, Jigs, GSE

●Aircraft Division:
The major division of our company, fabricating aircraft/spacecraft parts with state-of-theart facilities and specialized machining technology such as long-size precision cutting, 5-axis cutting, and titanium cutting.

●Vehicle and Aircraft Device Division:
Mainly designs and fabricates tools & jigs for aircraft assembly, and
aircraft components for overhauls (repairs) of aircraft.

●Hydraulic Device Division:
Mainly fabricates hydraulic device components for industrial vehicles and
construction machines. Performs machining, welding and assembly, and also fabricates machined parts of aircraft.


  • Functional Component, Equipment
  • Tooling, Jigs, GSE
  • Others

MRO covers for aerospace such as:
Tire covers, engine covers, intake covers, helicopter blade covers, etc.

Robot covers (Robot-Flex@)
Welding, painting, surface treatment, foundry, clean room (Scara Robot), EMC, robot boots

Way covers for machining center
Cross rail bellows of a large, horizontal-type machining center for an airplane wing (16.4ft cross rail testing machine at Nabell)

Nabtesco Corporation

  • Assembly, Sub-Assembly
  • Functional Component, Equipment
  • Special Process
  • Engineering/Design

●Nabtesco Aerospace Company is a key business among six business units.
●It has over 60 years of experience in the design, development and manufacture of hydraulic components, engine-related components, and flight control actuation systems.
●One of The World’s Top Suppliers for Flight Control Actuation:
  * Domestic Programs: Almost 100% Share
  * Boeing Commercial Program:
    – Top Supplier of “Fly-By-Wire” Flight Control Actuation Systems
       Recent New Programs:
        ・737MAX FBW Spoiler Actuator
        ・777X Flight Control Actuation Systems
    – Awarded “2013 Supplier of The Year”
  * Mitsubishi Regional Jet: Supplier of Flight Control Actuation Systems

Nishimura Works Co., Ltd.

  • Part Machining (Airframe)
  • Part Machining (Engine)
  • Tooling, Jigs, GSE
  • Engineering/Design

●Precision products manufactured with advanced technology on state-of-the-art equipment
The tools and fixtures that Nishimura Works manufactures for the aerospace industry are highly-specialized products used in the production of the Mitsubishi Regional Jet, the Boeing 787, and the H-IIA/H-IIB launch systems, as well as helicopters and other aircraft.
Nishimura is committed to meeting the challenges of the ever-advancing aerospace industry.

●Tools and fixtures for the aerospace industry
Nishimura accepts orders from aerospace and defense contractors for the manufacture of tools and fixtures used in the production of passenger planes, fighter planes, helicopters, rockets, and other aircraft.
Production standards for the aerospace industry call for extreme precision, and those tools and fixtures are exceptionally difficult to manufacture.

●Manufacture of component parts for aircraft
All aircraft must be capable of transporting passengers in safety. Nishimura Works manufactures structural elements of passenger aircraft. These parts form the airframe itself and there is absolutely no room for error in their manufacture.

●Dispatch of technical staff
We can provide support as necessary for the production of the latest aircraft by dispatching our technical staff to work directly at the customer’s production or management facility.


  • Others

Others : Heat blanket

●Design and manufacture of silicone rubber heaters (heater mat) for industrial use, for repair composite materials for aviation (stretch type, standard type, magnetic type)
●P&F heaters (polyimide flexible heater)
●Temperature controllers


  • Tooling, Jigs, GSE
  • Others

Others : Grinding

We serve as your partner for grinding in production development, and offer ideal processing and grinding solutions.

(1) Grinding processing by expert craftsmen
During the 47 years since our establishment, we have specialized in ‘grinding the impossible’ in a 1-μm process by N/C machines, leveraging the intuition and experience of our craftsmen.

●Cylindrical grinding …………… outside φ570mm, inside φ600mm
●Surface grinding …………… 600mm x 2000mm
●Profile grinding …………… 200mm x 200mm x 200mm

(2) Measurement of product dimensions with multiple inspection facilities
Constant-temperature chamber inspections, three-dimensional measuring machines, roundness measuring instruments, highly-trained measurement

Okaya Special Steel Center Co., Ltd.

  • Functional Component, Equipment
  • Part Machining (Engine)

●Our main business fields are the industrial machinery and construction machinery markets. We provide a variety of services including material stocks, cutting, and machining.
●We aim to undertake highly complex machining processes.
●We acquired JIS‐Q‐9100 in January 2015, and are entering the aerospace field.

Ryoki Tool Company, Ltd.

  • Part Machining (Airframe)
  • Part Machining (Engine)
  • Special Process
  • Tooling, Jigs, GSE
  • Engineering/Design
  • Others

Others : Eaterjet,advanced Inspection

●Invar tooling for composites
●Tooling for aircraft and aerospace
●Aircraft parts fabrication
●Measurement services under contract
●Stamping dies for automobiles

S-TEC Co., Ltd.

  • Part Machining (Engine)
  • Engineering/Design

●Aerospace equipment and parts manufacturing
●Design and manufacturing of swivel joints for aircraft
●Design and manufacturing of swivel joints and rotary joints for industrial machinery
●Medical device parts manufacturing

Sanko Hamono Co., Ltd.

  • Tooling, Jigs, GSE

●Manufacturing, customization, R&D and sales of cutting tools Product line-up includes drills, end mill routers, and cutters for CFRP, GFRP composites, metals, and wood materials
●Trial and customization of cutting tools to suit each customer’s machine conditions
Sanko Hamono is a maker of industrial cutting tools and grinding tools, specializing in tool design, manufacture, repair, regrinding, and restoration. We provide tool manufacturing and repair services employing a comprehensive range of equipment including NC machining centers, wire cutting and brazing equipment, high-precision polishers, tool grinders, profiling machines, and inspection machines.

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