We emphasize collaboration with partner companies for laser processing, etching, pressing, polishing, and more!
Rikazai Co., Ltd. is engaged in the development of thin foil through cold rolling of high-performance materials. There are very few manufacturers capable of processing thin foil, and our company places great importance on collaboration with partner companies for laser processing, etching, pressing, polishing, and more. If you have any inquiries, please feel free to contact us. 【Our Features】 ■ A company skilled in producing thin foil ■ We support all of the following in-house: - Sourcing materials from both domestic and international suppliers - Manufacturing various metal foils through cold rolling - Coordination with various secondary processing manufacturers capable of thin foil processing ■ Dedicated to metal foil since our establishment in 1947 * For more details, please refer to the PDF materials or feel free to contact us.
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In 1947, Rikazai focused on foil, which held infinite possibilities as a metal material, and started a rolling business to commercialize it. Our metal foil has been used as spacers for magnetic heads in tape recorders, as well as in various applications such as electrical resistance films, burst membranes, and speaker diaphragms, responding to the diverse needs of the industry. Currently, we are capable of producing high-quality foil with a thickness of up to 0.3μm (3 micrometers). The meticulous finishing of each metal foil through precision ultra-thin rolling can be described as a delicate "artisan's skill," treating metal as if it were a living entity. So, how can such ultra-thin foil be produced? Kanazawa gold leaf is made by repeatedly hammering it until it is spread thin and wide, much like rolling out pie dough. While it does become quite thin, it is not uniform overall and is primarily used for decorative purposes, such as being applied to Buddhist statues. In contrast, the typical precision rolling method for metals involves passing the material between upper and lower rolling rolls, where the pressure from the rolls stretches it. This process can be done cold or hot, and various techniques are required depending on the type and amount of metal and the scale of rolling, making it a world of "skills" backed by years of experience and expertise.