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In the rapidly evolving world of medical technology, the demand for smaller and more precise devices is constantly growing. As medical procedures become increasingly minimally invasive, the need for reliable micro seals has become paramount. These tiny yet powerful components

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Innovative designs are becoming smaller and smaller, and as a result, the market demand for miniature components is growing. Hence, our team has accepted the challenge to develop the world's smallest o-ring! We specialize in extremely tiny o-rings and custom

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They were one of 60 companies. For details, click below. http://sciencelinks.jp/content/view/1296/287/

KEF succeeds in manufacturing a "flash free" and "no parting Line" O-ring. We develop products, where there can be no debris, e.g. for medical, where mold part lines and burrs have become problems. Functionally, this will provide your products superior

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This requires strict industry standards and that each part will meet or exceed those standards, time after time. Making material with high precision and high reliability is a critical issue. It is also critical in our O-rings.

This was no easy task. Diaphragm thickness and diameter are 0.025"±0.004 and 2.840" respectively with nylon cloth inside.　 The three-layer structure is created by compression molding on both sides of a nylon cloth with special rubber that we have developed.

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Accuracy and reliability are important for use in space. This watch seal's specifications are waterproof up to 1000 meter deep and must withstand temperatures of -20°C~+70°C. A product is developed using our newest raw material compound, proving high quality and

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KEF was chosen among 300 other companies for Fine Manufacturer in Japan. KEF receives a letter of thanks from the Japanese economic minister.