It is manufactured using standard materials that conform to JIS-B-2401 and JASO standards, as well as special materials that can adapt to various conditions.
Our company manufactures and sells JIS standard O-rings and various types of O-rings, which are a type of rubber ring used for industrial purposes, serving as sealing materials and packing materials in various fields such as automotive, electrical, power, industrial machinery, construction, and semiconductors. The materials suitable for O-rings are preferably rubber materials with excellent compression set (permanent deformation under compression). We produce these rubber materials in accordance with the JIS-B-2401 and JASO standards, as well as special materials that can adapt to various conditions. Please feel free to contact us if you have any requests. 【Dimension Standards】 ■P Standard ■G Standard ■GS Standard ■V Standard ■AS568 Standard, etc. *For more details, please download the PDF or contact us.
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【Other Dimension Standards】 ■S Standard ■SS Standard ■JASO F404 Standard ■KS Standard ■ISO Standard ■AN6227 Standard ■AN6230 Standard *For more details, please download the PDF or contact us.
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Our company has obtained the Japanese Industrial Standards (JIS) certification for both of our domestic factories. We manufacture standard O-rings and custom-sized O-rings tailored to market demands, as well as a wide range of sealing materials. We strive to be a customer-oriented company that continuously advances to solve our customers' problems and various development needs with our unique rubber compounding and manufacturing technologies, driven by our commitment to completion. [History] Tasaki Asahi was founded in 1949 (Showa 24) during the chaotic period shortly after the end of World War II as "Tasaki Meriyasu Seisakusho." In 1970 (Showa 45), we established "Asahi O-Ring Co., Ltd." focusing on the functionality of vulcanized rubber. Subsequently, in 1973 (Showa 48), we began full-scale manufacturing and sales of rubber sealing materials under the current name "Tasaki Asahi Co., Ltd."