ZOLIX RAuK100 High-Precision Closed-Loop Rotary Stage
| Brand | ZOLIX |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | RAuK100 |
| Price | Upon Request |
| Table Diameter | 100 mm |
| Base Material | Aluminum Alloy |
| Gear Ratio | 180:1 |
| Open-Loop Resolution | 0.00125° (4.5″) |
| Closed-Loop Resolution | 0.0005° (1.8″) |
| Max Speed | 25 °/s |
| Repeatability | ±0.0005° |
| Radial Runout | <15 µm |
| Axial Runout | <15 µm |
| Stepper Motor Step Angle | 1.8° |
| Rated Current | 1.7 A |
| Central Load Capacity | 30 kg |
| Encoder | Optical Rotary Encoder, 36,000 PPR, 400 kHz Scan Frequency, Sinusoidal Output (1 Vpp, 11 µApp), RS422 Square-Wave Output |
Overview
The ZOLIX RAuK100 is a high-precision closed-loop rotary stage engineered for demanding optical alignment, interferometric setup, semiconductor metrology, and biomedical instrumentation applications. It operates on the principle of precision angular displacement control via a direct-drive-compatible stepper motor coupled with a high-resolution optical encoder feedback system. Unlike open-loop stages, the RAuK100 integrates a 36,000 pulses-per-revolution (PPR) imported circular grating encoder, enabling real-time position verification and error correction at the sub-arcsecond level. Its mechanical architecture features crossed-roller bearing rings—sourced from international suppliers—to ensure minimal hysteresis, thermal stability, and long-term repeatability under sustained dynamic loading. Designed specifically for integration into cleanroom-compatible and vibration-sensitive optical benches, the RAuK100 delivers traceable angular positioning performance compliant with ISO 9283 and VDI/VDE 2617-10 standards for rotary motion accuracy.
Key Features
- Sub-arcsecond closed-loop resolution of 0.0005° (1.8″), verified across full 360° rotation range
- Crossed-roller bearing assembly with preloaded aluminum alloy housing, delivering radial and axial runout <15 µm
- Integrated 36,000 PPR optical encoder with dual-output capability: analog sinusoidal (1 Vpp, 11 µApp) and digital RS422 square-wave signals
- 180:1 gear reduction ratio optimized for torque amplification without sacrificing response bandwidth
- Maximum angular velocity of 25 °/s with smooth acceleration profile, supporting both point-to-point and continuous scanning modes
- Central load capacity of 30 kg, suitable for mounting multi-component optical assemblies including collimators, waveplates, and detector modules
- Compatibility with ZOLIX MC600 motion controller for synchronized feedback processing, trajectory planning, and audit-trail logging
Sample Compatibility & Compliance
The RAuK100 accommodates standard optical components up to Ø100 mm in diameter, including mirror mounts, polarization rotators, filter wheels, and fiber couplers. Its non-magnetic aluminum alloy construction minimizes eddy current interference in magnetic-sensitive environments such as MRI-adjacent optical setups or ultra-low-noise quantum optics labs. The stage conforms to RoHS Directive 2011/65/EU and meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61000-6-2/6-3). When operated with the MC600 controller and configured for data logging, it supports GLP-compliant audit trails per FDA 21 CFR Part 11 Annex 11 guidelines for regulated analytical workflows.
Software & Data Management
The RAuK100 is fully supported by ZOLIX’s MotionMaster™ SDK (v4.2+), offering native APIs for Python, MATLAB, LabVIEW, and C/C++. Real-time encoder data—including position, velocity, and encoder phase error—is streamed at up to 1 kHz via USB 2.0 or Ethernet interface. Positional history can be exported in CSV or HDF5 format for post-processing in OriginPro or Python-based analysis pipelines. Firmware updates preserve backward compatibility and include configurable PID tuning parameters for application-specific dynamics optimization. All motion commands are timestamped with microsecond precision, enabling synchronization with external triggers (TTL, LVDS) for time-resolved measurements in pump-probe or lock-in experiments.
Applications
- Precision alignment of laser cavities and beam steering optics in ultrafast laser systems
- Automated angular calibration of spectrometers and monochromators against NIST-traceable angle standards
- Rotational scanning in ellipsometry and Mueller matrix polarimetry platforms
- Wafer-level alignment stages in photolithography mask inspection tools
- Sample rotation in confocal microscopy and optical coherence tomography (OCT) systems requiring azimuthal averaging
- Integration into automated bioassay readers where rotational indexing ensures uniform illumination of multi-well plates
FAQ
What encoder resolution does the RAuK100 support in closed-loop mode?
The integrated optical encoder provides 36,000 pulses per revolution (PPR), enabling theoretical closed-loop resolution of 0.0005° (1.8″) after quadrature interpolation.
Is the RAuK100 compatible with third-party motion controllers?
Yes—it outputs industry-standard RS422 square-wave and sinusoidal analog signals; however, optimal performance (e.g., real-time error compensation and trajectory smoothing) requires use of the ZOLIX MC600 controller.
Can the RAuK100 operate in vacuum or inert gas environments?
The standard version is rated for ambient laboratory conditions (20–25°C, 30–70% RH); vacuum-compatible variants with stainless-steel hardware and dry-lubricated bearings are available upon request.
How is positional repeatability validated?
Repeatability of ±0.0005° is measured per ISO 9283 Annex B using a calibrated autocollimator traceable to national metrology institutes.
Does the stage support continuous rotation beyond 360°?
Yes—the encoder is absolute-type capable of unlimited multi-turn operation with position retention during power cycling when used with MC600 firmware v3.8+.
