The Newport NRC VPT-3 is an adjustable vertical post holder engineered for precise positioning of optical components in laboratory and industrial setups. It securely mounts 0.5-inch diameter optical posts and delivers stable, repeatable vertical adjustment through a combination of coarse and fine mechanisms. Aluminum construction provides durability in demanding optical alignment applications.
Technical Specifications
• Post Diameter Compatibility: 0.5 inch (12.7 mm)
• Vertical Adjustment Range: 3.0 to 3.64 inches (76.2 to 92.5 mm)
• Base Mounting Thread: 1/4-20 UNC
• Material: Aluminum
– Key Features
• Coarse adjustment via spring-loaded thumbscrew operates in no-slip mode for rapid positioning
• Fine adjustment collar allows height changes without rotating the mounted component
• Spring-loaded clamping screw locks position with high stability once set
• Compatible with PS-A Pedestal Post Adapter for flexible mounting configurations
– Typical Applications
The VPT-3 serves precision optical alignment tasks in laser systems, optical benches, and laboratory instrumentation where accurate vertical positioning and component stability are critical.
– Compatibility & Integration
Standard Configuration: Accepts 1/4-20 threaded adapters and the PS-A Pedestal Post Adapter for integrated optical bench setups.
VPT-3-P Variant: Includes pedestal base for standalone operation; vertical adjustment range 3.13 to 3.46 inches (79.5 to 87.9 mm).
M-VPT-3 Metric Variant: Designed for M6 threaded systems with 76.2 to 92.5 mm adjustment range; compatible with M-PS-A Pedestal Post Adapter.

















