Engineered for demanding optical and photonics applications, the Ultra-Precision Manual 360° Rotary Mount delivers exceptional angular positioning accuracy, smooth continuous rotation, and robust mechanical stability. Designed to accommodate large apertures and heavy substrates, this mount integrates both coarse and fine adjustment controls alongside versatile mounting and upgrade pathways, making it an ideal choice for complex optical setups, laser systems, and custom instrumentation. Click on the image above to enlarge and appreciate the precision engineered design.
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Key Features
• Continuous 360° Rotation: an unrestricted, free-rotating ring mechanism equipped with an absolute 360° scale (1° markings) for rapid orientation and reference.
• Dual-Speed Manual Control:
Coarse Adjustment: 100° per revolution with a locking brake, turn counting, and an extended range of up to 2099° before rollover.
Fine Adjustment: 0.2° resolution markings with 10° per revolution for ultra-fine alignment.
• Absolute Vernier Scales: Includes both a fixed-position and an adjustable-position absolute vernier scale (1° markings) for precise, repeatable angular readouts.
• Flexible Component Integration: Accommodates large optical rings up to 5.55” (141 mm) OD and clear apertures up to 4.80” (122 mm). Bare, un-mounted optics can be easily coupled using o-rings.
• Robust Mechanical Design: Built to maintain stability across any orientation under balanced load conditions, featuring a slotted base for optical table positioning and a center post mount configuration.
Technical Specifications
Net Weight 3.50 lbs (1.59 kg) (Ring/Foil Adapter: +0.50 lbs)
Max Load Capacity 5.50 lbs (2.50 kg) — Any orientation, balanced load only
Max Optic/Substrate Weight 2.00 lbs (0.91 kg)
Maximum Component OD 5.55” (141.0 mm)
Clear Aperture (ID) 4.80” (122.0 mm)
Max Optic / Substrate Thickness 0.50” (12.70 mm)
Overall Dimensions 7.968” W x 7.585” H x 3.175” D
Mounting Interfaces Slotted optical table mount; center post mount (Optical post not included)
Customization & Modular Options
To tailor this mount to your specific experimental or industrial requirements, several factory-configured options and upgrades are available:
• Motorization Package: Integrates a NEMA-14 frame 4-wire stepper motor that actuates the ring at 0.05° (3 arc-minutes) per full step. Micro-stepping configurations easily drive ring actuation down into the sub-arc-second range.
• Control Systems: Compatible with simple handheld controllers or advanced PLC systems featuring touchscreen interfaces.
• Ultra-High Vacuum (UHV): In-vacuum and UHV bakeable variants available for sealed or high-vacuum environments.
• Multi-Component Upgrade: A secondary adjustable angle guide with a reversible design permits the mounting of up to four optical rings simultaneously.
• Custom Optical Adapters: Optional optical ring adapters available upon request (specify desired OD and clear ID at time of order). Non-circular apertures can be custom-machined upon request.
