Tabletop Optical Breadbord

◦Top plates are made of stainless steel (SUS430), bottom plates are made of hot rolled steel (SPHC). The core of the  boards is comprised of plated steel honeycomb cores bonded with high strength adhesive.

◦Honeycomb cores (size 3.2cm2 ) are made of 0.25mm thick plated steels giving maximized stiffness and extensive contact  surface with two plates for high rigidity.  

◦Top plates are precisely grinded to minimize surface curves and pressure bonded to achieve excellent flatness. 

◦The M6 (1/4″-20) tapped holes are on a 25 mm matrix. 

◦Cylindrical cups are attached to the bottom of top skins for sealing tapped holes. This prevents the flow of any chemical  substances into the honeycomb cores.