The Newport RS4000-46-8 Optical Table is a precision platform engineered for vibration-sensitive optical and photonic experiments. This 4 ft. × 6 ft. × 8 in. thick table delivers exceptional stability through a laminated steel honeycomb core paired with broadband and tuned damping mechanisms. The ferromagnetic stainless steel working surface maintains ±0.004 in. flatness over 2 ft. square, meeting the demands of laser systems, microscopy, and interferometry setups.
– Technical Specifications
Dimensions & Construction
• Width: 4 ft.
• Length: 6 ft.
• Thickness: 8 in.
• Working Surface: 3/16 in. thick 400 series ferromagnetic stainless steel
• Bottom Skin: 3/16 in. thick carbon steel
• Table Weight: 770 lb.
• Crated Weight: 930 lb.
Surface Performance
• Flatness Tolerance: ±0.004 in. over 2 ft. square
• Mounting Pattern: 1 in. grid with 0.5 in. borders, 1/4-20 holes, alpha-numeric grid labels
• Mounting Hole Sealing: Conical cup design, 0.75 in. deep, polymer material
Vibration Isolation & Damping
• Core Type: Trussed honeycomb, vertically bonded closed-cell construction
• Steel Sheet Thickness: 0.010 in.
• Triple Core Interface Thickness: 0.030 in.
• Broadband Damping: Constrained layer core with damped working surface and composite edge finish
• Tuned Damping: 6 Narrowband Precision Tuned Dampers targeting resonances from 25 Hz to 525 Hz
• Active Damping: Not included
Material Properties
• Young’s Modulus (Carbon Steel Skin): 29.0 × 10⁶ psi (200 GPa)
• Estimated Core Shear Modulus: 225,000 psi
– Key Features
• Proprietary elastomeric vibration-absorbing materials integrated within honeycomb structure
• Triple core interface increases point-load capability
• Non-magnetic surface: No
• Alpha-numeric grid reference system for equipment positioning
– Typical Applications
• Laser beam delivery and alignment systems
• Optical microscopy and imaging
• Interferometric measurement systems
• Precision photonics research and development
• Spectroscopy and analytical instrumentation
– Compatibility & Integration
The 1/4-20 mounting hole grid accommodates standard optical post systems, kinematic mounts, and custom fixtures. The table operates as a standalone top; isolators and support systems are ordered separately.



















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