About Us

Management Policies

  • Establish the concept of market-in
  • Ensure reliable safety, delivery management, quality and cost
  • Cultivate a cost-effective company
  • Healthy working environments for employees and their professional development

Quality and Action Policies

  • Quality Policies:On-time delivery of products that satisfy all customer requirements.
  • Quality Target: “Non-shipment of inferior goods from the factory”
  • Action Guideline: “Support management decisions”

Environmental Policies

  • Assess the company’s environmental impact , take steps effective in reducing that burden.
  • Ensure compliance with all relevant laws, ordinances and other regulations.
  • Strive to conserve resources, save energy and reduce waste.
  • Instill awareness in all employees of the need for environmental protection,advancing collective activities by all individual members.
  • Expand exchanges with the local community, vigorously participate in regional activities, advance environmental conservation programs within the company.
  • Determine, achieve and conduct regular reviews of environmental policies, objectives and targets, continuing to enhance environmental management systems.

Company Profile

Founded Jan. 1947
Capitalization 92 million yen
Fiscal term The end of September per year
Organization of
Chairman Nobuo Yuasa
President Hirohumi Yuasa
Director Tosihiko Wakabayasi
Director Toru Yuasa (part-time)
Employees 169 (Jan. 2017)
Business Lines:

Head Office

a)Crankshaft machining (Mass production and trial production)

  • Products for diesel engines
  • Products for gasoline engines
  • Products for compressors
  • Products for racing (motorcycles and motor vehicles),etc.

b)Precision machining

  • Machining of components to be used in printing machines
  • Processing of corrugated roll
  • Machining of special precision components

Hydraulic Equipment Division

a)Design and production of hydraulic equipment

  • Cylinders for construction machines
  • Cylinders for home elevators
  • Cylinders for industrial machinery

b)Design, production and sales of telescopic mast

  • Mast systems for broadcast vans, monitoring cameras, lighting, etc.

Systematic Equipment Devision

a)Development and Manufacture of Laborsaving equipment

  • Development, design and manufacture of laborsaving equipment
  • Design and manufacture of jigs and pallets
  • Development, design and manufacture of various dedicated machines

    b)Development and Manufacture of Ring Assembly Machin

    c)Manufacture and Sales of Bending Test Machine


a)Crankshaft machining (Mass Production)

  • Products for diesel engines
  • Products for gasoline engines

Contact/Customer Service

Crankshaft machining

Tokyo Branch
TEL 03-3578-8515 / FAX 03-3578-8516
TEL +81-3-3578-8515 / FAX +81-3-3578-8516

Osaka Sales Office
TEL 06-6397-2633 / FAX 06-6397-2632
TEL +81-6-6397-2663 / FAX +81-6-6397-2632

Sales Section of Head Office
TEL 086-241-2891 / FAX 086-245-0165
TEL +81-86-241-2891 / FAX +81-86-245-0165

Design and production of
hydraulic cylinder
Telescopic mast system

Tokyo Branch
TEL 03-3578-8515 / FAX 03-3578-8516
TEL +81-3-3578-8515 / FAX +81-3-3578-8516

Osaka Sales Office
TEL 06-6397-2633 / FAX 06-6397-2632
TEL +81-6-6397-2663 / FAX +81-6-6397-2632

System devices