Honeycomb optical table

* Sandwich structure with steel honeycomb core * Top skin 5 mm thick stainless ferromagnetic steel * Honeycomb core of 0.25 mm thick steel has a density of 125-250 kg/m3 depending on the mesh size and its structure * Top skin has a pattern of M6 holes spaced by 25 mm * Flatness +-0.1mm/m2, Young's modulus 21x105 kg/cm2, Shear modulus 8.2x105 kg/cm2 * Deflection under load 4 μm/m (100 kg centrally loaded) * Resonant frequency approx. 200 Hz * Transient excitation delay time 50 ms Honeycomb Table Tops provide the base on which precision optical and laser work is performed. The table tops have honeycomb core inside. The table tops meet high requirements for rigidity, flatness, vibration isolation and damping. Standard Honeycomb Tabletop consists of a 5 mm thick cold-rolled stainless ferromagnetic steel top skin, and 3-6 mm thick bottom skin, both bound under high pressure to a honeycomb core, using a special epoxy resin. Thickness of the skin depends on the dimensions of the table top. The top skin has a pattern (grid) of M6 holes spaced by 25 mm with ±0.1 mm accuracy.