Sadai Precision Industrial Co., Ltd.

We are specialized in manufacturing a variety of precise optical machinery which are well suited for the production of diverse lenses for laser, rifles, cameras, binoculars, microscopes, copiers, eye glasses and other educational optic-apparatus.

Our products are particularly designed for the finishing process of miscellaneous lenses such as cutting, grinding, centering, vacuum impregnating and the like which are considered essential for optical industry. SIDAI's optical machine have been supplied to domestic optic manufacturers, government - support institutes and optic-related laboratories. On the other hand, tools for grinding machines, polishing machines, centering machines and other apparatus have been exported to the United States, China, Japan, Thailand, etc. since 1986.

We would like to assure you of our ceaseless efforts in developing high-quality optic machinery. Your continuous cooperation should be needed. We wish all of our customer an evergrowing prosperity.