Sapphire Sight Windows

Custom fabricated sapphire sight windows and viewports for cryogenic equipment, furnaces, high vacuum, and other process systems can be manufactured in sizes from 0.25 to 10-in. in diameter with stepped edges and elliptical edge shaping, holes, slots, and wedges for mounting. Designed for applications from UHV to 10,000 psi and cryogenic to 1,000°C, depending upon configuration, they resist most chemicals including fluorine to 300°C.