Manual R Axis Rotary Stage With Dialed In Micro Adjustment Turntable For Precise Positioning 360 Degree Coarse Rotation Locking Screw And Micrometer Head RS90 L Aluminum Alloy Build
The RS90-L Manual R-Axis Rotary Stage delivers exceptional angular precision for optical alignment, metrology, and micro-assembly tasks where every arc-minute matters. Built for reliability, it combines a 360° coarse rotation with a locking screw and a micrometer head for dialed-in micro-adjustments, so you can lock a coarse position and fine-tune with confidence.
What makes the RS90-L stand out
- 360° coarse rotation with secure locking: Move across the full circle and commit to a position with a simple locking screw, then refine using the micrometer head.
- Precision micro-adjustment: The integrated micrometer head provides ultra-fine angular steps, enabling angular positioning down to 0.6 arc-min per division.
- Rigid yet lightweight construction: Aluminum alloy body with an anodized finish offers durability, corrosion resistance, and repeatable performance in demanding environments.
- Smooth, repeatable motion: Brass internal components paired with an integrated rolling bearing minimize friction for consistent rotation and long-term accuracy.
- High concentricity and parallelism: Concentricity ≤ 0.03 mm and parallelism ≤ 0.04 mm ensure alignment integrity across multiple setups.
- Compact, capable platform: A 90 mm table diameter and 20 mm thickness deliver a compact footprint with enough real estate for precision components without adding bulk.
Key specifications at a glance
- Model: RS90-L
- Material: Aluminum alloy
- Surface treatment: Anodized
- Drive method: Micrometer head
- Table diameter: 90 mm
- Table thickness: 20 mm
- Rotation range: 360° coarse adjustment, ±5° fine adjustment
- Load capacity: 29.4 N (approximately 3 kg)
- Minimum micrometer scale: 0.6 arc-min per division
- Concentricity: ≤ 0.03 mm
- Parallelism: ≤ 0.04 mm
- Weight: 0.5 kg
Ideal use cases
- Optical alignment tasks where precise angular positioning is critical, such as aligning laser optics, beam splitters, or filters on a rotational axis.
- Laboratory setups requiring repeatable angular adjustments for experiments, calibration rigs, or metrology fixtures.
- Precision assembly and small-scale machining where controlled, repeatable rotation improves accuracy and reduces setup time.
- Microscope or camera mounting assemblies that demand fine angular control and stable, low-friction operation.
How this design translates to real-world results
The combination of 360° coarse rotation with a locking screw and a micrometer-driven fine adjustment means you can establish a robust baseline position quickly and then dial in micro-rotations with confidence. The brass internals and rolling bearing deliver smooth, repeatable motion with minimal play over time, so alignment tasks that once required frequent readjustment become dependable, repeatable operations. With tight concentricity and parallelism tolerances, this stage helps maintain optical paths, measurement references, and precision assemblies within spec across multiple sessions.
Practical tips for best results
- Before use, wipe the contact surfaces and verify the micrometer head moves smoothly across its full range.
- When locking, apply gentle, even pressure to avoid any over-tightening that could misalign the stage.
- For repeatable setups, document the zero-reference position for quick recalls in future experiments or assemblies.
- Pair with compatible mounting plates or fixtures designed for 90 mm stages to maximize rigidity and reduce any unintended tilting or wobble.
Package includes: 1 x Manual R-Axis Rotary Stage