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Business Overview

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Ryobi's Die Castings Are Used in More Than 300 Types of Vehicles All Over the World. Light Weight and Recyclability Help Save Energy and Resources.


Aluminum die castings are light, durable and offer superior recyclability. These products help to make automobiles lighter and have attracted attention as an effective technology for the protection of the environment, including the conservation of energy and resources. Based on its technological expertise and experience accumulated over many years, Ryobi uses its collective strength and corporate agility to supply high-quality die castings, mainly to the automobile industry. In responding to diversifying needs, we continue to explore new die casting frontiers.

World-Leading Die Casting Manufacturer

Ryobi die castings have been instrumental in making automobiles lighter. With over 2,500 types of die cast products, including cylinder blocks, transmission cases and subframes, used in over 300 types of vehicles, Ryobi's technological strength and quality is highly acclaimed. As one of the world's top-class die casting manufacturers, Ryobi continues to move forward with the automobile industry.

Vertical Integration and Quick Response: Quality Assurance in Conformity with International Standards (ISO)

Ryobi is able to accurately respond to customer demands in a prompt and speedy manner as a result of its vertically integrated system, long-established technological expertise, collective strength and corporate agility. Quality management and quality assurance systems, which have been certified as conforming to both ISO 9001 international standards and automotive industry-specific ISO/TS 16949 standards, serve to strengthen and enrich quality control aspects.

Toward Lighter and Higher Quality Die Cast Products

The superior properties of aluminum and magnesium alloys are fueling growth in applications of die castings. The development of innovative technologies and new materials is undertaken from every conceivable angle in order to respond to demands for further weight savings and higher quality.

Constructive Technical Proposals from Closer Cooperation with Customers

As one aspect of "concurrent engineering," we have dispatched engineers to some customer locations to provide technological proposals from the development stage, which supports our customers' product development. In addition, our analysis technologies, including structural, metal flow and solidification analyses help to optimize product geometries. In CAD/CAM systems, we are actively promoting 3-D systems, and are working to reduce die development and fabrication times.

















Main Customers

Ryobi is able to meet demand for die cast products from its customers around the world.

Daihatsu Motor Co., Ltd.
Ford Motor Company
General Motors Company
Hino Motors, Ltd.
Honda Motor Co., Ltd.
Hyundai Motor Company
Isuzu Motors Limited
JATCO Ltd
Mazda Motor Corporation
Mitsubishi Motors Corporation
Nissan Motor Co., Ltd.
Subaru Corporation
Suzuki Motor Corporation
Toyota Motor Corporation
Volkswagen Group
etc.,