As a "world's top class comprehensive wheel manufacturer", we manufacture all kinds of wheels according to the purpose.

TOPY wheels

Based on our group's technological development capabilities, superior design, and the construction of a quality assurance system, we have been producing high-precision products one after another and producing solid results.

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― Mechanism to produce high quality ―

Technology

Analysis technology for Aluminum wheel

As a result of the diversification of Aluminum wheel designs, the shape of the product has become more complex, and high casting quality is required. In order to respond to this, we have developed a casting analysis system and are working to set the optimum casting conditions.

There is also a strong demand for lighter weight Aluminum wheel. In the past, product prototyping and strength testing were repeated in development, but the development period was long. At our company, we have developed an FEM analysis system that analyzes the stress and strain of each part of the wheel at the design drawing stage and predicts the strength. The period has been greatly shortened.

Evaluation technology

We have established thoroughgoing evaluation techniques so that our customers can use all of the products we manufacture with peace of mind. Wheel strength durability tests and measuring instruments are developed and manufactured in-house using cutting-edge technology.