ダイネツ Company Profile

We provide heat treatment technology that meets your quality needs and offers high reliability for safe use.

The Dainetsu Group is a historic company that has been in operation for about 200 years since the 10th year of the Bunka era (1813 AD). The Dainetsu Group consists of three companies: Dainetsu Sanyo Metal in the heat treatment sector and Dainetsu Trading in the commercial steel plate sector. Dainetsu Co., Ltd. has its headquarters and Minato factory in Sakai City, as well as a factory in Kochi Prefecture, making it a metal heat treatment processing company. The products handled include large components for construction machinery, machine tools, wind power generation, and parts related to automobiles, with a particular expertise in heat treatment of large products. In recent years, the company has developed heat treatment equipment equipped with mist cooling and has received numerous high evaluations from government bodies such as the Ministry of Economy, Trade and Industry and Osaka Prefecture.