With over 100 years of accumulated technological expertise, we offer a wide range of products from rebar and wire rods to aerospace equipment components!
TONEZ Co., Ltd. is a company that primarily engages in the general heat treatment processing of metal materials and components. We have five factories in Japan and one overseas, equipped with approximately 160 heat treatment furnaces domestically, allowing us to respond to our customers' diverse heat treatment needs and quality requirements, from small items weighing a few grams to large items weighing several tons, with stable production capacity. Additionally, we possess large-scale equipment such as a "gantry-type heat treatment facility" capable of processing products with maximum dimensions of 1,600mm in diameter, 6,000mm in length, and weighing 1.5 tons, establishing our unique heat treatment equipment, technology, and know-how. 【Business Items】 ■ General heat treatment processing of metal materials and components ■ Sandblasting and shot blasting processing related to the above ■ Solar power generation and sales *For more details, please download the PDF or feel free to contact us.
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【Equipment Owned (Partial)】 ■Osaka Factory ・Fork charge type annealing, quenching, and tempering furnace ・Pit-type gas carburizing furnace, etc. ■Takasago No. 1 Factory ・Mesh belt type continuous annealing, quenching, and tempering furnace ・Large cart furnace, etc. ■Takasago No. 2 Factory ・Quenching and tempering equipment for coils ・φ3500 large gears for ships carburizing and quenching, etc. ■Kasai Factory ・Continuous quenching and tempering equipment for round bars ・Multipurpose pit-type electric furnace, etc. ■Kyushu Factory ・Large cart furnace ・Pit-type gas carburizing furnace, etc. ■Overseas Bases ・Continuous quenching and tempering equipment for round bars ・Annealing and tempering equipment, etc. *For more details, please download the PDF or feel free to contact us.
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Since our founding in 1909, we at TONEZ have been pursuing technology and quality in heat treatment. Utilizing the technical skills we have honed over many years, we are now highly regarded in a wide range of fields, including automotive parts, large materials and components, and heat treatment for aerospace equipment parts that require high reliability. We can accommodate various treatments, from material heat treatment (quenching and tempering, annealing, etc.) including round bars, to surface heat treatment of finished products (carburizing, gas nitriding, gas soft nitriding). We can handle everything from single products to mass production. In terms of quality, we have obtained "ISO 9001" and "JIS Q 9100" certifications, establishing a world-standard quality management system.
