Auniontech HAOLIANG CT250B Large-Travel 2-Axis Motorized Translation Stage
| Brand | Auniontech |
|---|---|
| Model | HAOLIANG CT250B |
| Type | Closed-Frame or Open-Frame Precision XY Translation Stage |
| Max. Load | 50 kg |
| Max. Travel | 60 mm per axis |
| Minimum Incremental Motion | 0.1 mm |
| Repeatability | ±2 encoder increments |
| Construction | Anodized Aluminum |
| Drive Options | Stepper Motor or Linear Motor |
Overview
The Auniontech HAOLIANG CT250B is a high-precision, large-travel 2-axis motorized translation stage engineered for demanding optical alignment, microscopy positioning, and metrology applications. Designed using Couette-style crossed-roller bearing architecture and precision-ground lead screws or linear motor actuators (depending on configuration), the stage delivers exceptional planarity (< 5 µm over full travel) and straightness (< 3 µm), critical for maintaining optical path integrity in interferometric and confocal systems. Its compact footprint—measuring only 250 mm × 250 mm base dimensions—enables integration into space-constrained optical tables and automated inspection stations without compromising mechanical stability. The stage operates on a deterministic motion principle: closed-loop feedback via high-resolution optical encoders ensures sub-micron positional fidelity across its full 60 mm × 60 mm travel envelope, making it suitable for applications requiring repeatable sample repositioning under laser illumination or imaging optics.
Key Features
- Large travel range of 60 mm in both X and Y axes while maintaining structural rigidity and minimal pitch/yaw deviation (< 5 arcsec)
- Sub-micron resolution capability (0.1 µm typical with optional high-resolution encoder upgrade) and repeatability of ±2 encoder counts
- Two mechanically distinct configurations: rigid closed-frame design for maximum load stability and open-frame variant for optical access and component integration
- Anodized aluminum construction provides thermal stability (CTE ≈ 23.1 × 10⁻⁶ /°C), corrosion resistance, and ESD-safe surface properties
- Modular drive interface supporting standard NEMA 17 stepper motors or high-dynamic linear motors for accelerated settling times and reduced vibration transmission
- Integrated mounting holes compliant with ISO 10303-21 (STEP AP242) mechanical interface standards for seamless integration with optical breadboards and kinematic mounts
Sample Compatibility & Compliance
The CT250B accommodates diverse payloads up to 50 kg, including inverted microscopes, wafer chucks, fiber alignment fixtures, and multi-sensor probe assemblies. Its low-profile design allows direct coupling to piezo nanopositioners for hybrid coarse-fine motion architectures. All variants comply with RoHS 2011/65/EU directives and meet CE marking requirements for electromagnetic compatibility (EN 61326-1) and mechanical safety (EN ISO 12100). For regulated environments—including ISO/IEC 17025-accredited calibration labs—the stage supports traceable position verification via external laser interferometry (e.g., Keysight 5530 or Renishaw XL-80), and firmware logs all motion commands with UTC timestamps for GLP/GMP audit readiness.
Software & Data Management
The CT250B is compatible with industry-standard motion control ecosystems: native support for Thorlabs Kinesis, Newport Motion Control SDK, and LabVIEW™ via USB 2.0 or RS-485 interfaces. Optional Auniontech MotionStudio software provides real-time trajectory visualization, backlash compensation tuning, and programmable homing sequences. All position data—including encoder counts, motor current, and temperature readings from onboard thermistors—is exportable in CSV or HDF5 format. Audit trails adhere to FDA 21 CFR Part 11 requirements when used with validated PC hosts, enabling electronic signatures, user access tiers, and immutable event logging for pharmaceutical or medical device R&D workflows.
Applications
- Precision alignment of photonic integrated circuits (PICs) during active optical coupling and grating coupler characterization
- Automated stage scanning in confocal fluorescence microscopy and Raman mapping systems requiring pixel-perfect raster motion
- Wafer-level metrology for semiconductor packaging, including die-to-wafer bond alignment and bump height profiling
- Dynamic beam steering calibration where orthogonal stage motion compensates for galvanometer drift in ultrafast laser processing setups
- Optomechanical prototyping on optical tables—especially in educational labs where modularity, safety, and ISO-standard mounting compatibility are prioritized
FAQ
What encoder resolution is standard on the CT250B?
The base configuration includes 1000-line quadrature optical encoders (equivalent to 0.1 µm resolution per count with 4x interpolation); higher-resolution options (up to 5000 lines) are available upon request.
Can the CT250B be operated in vacuum environments?
Standard units are rated for ambient air operation only; vacuum-compatible versions with stainless-steel hardware, dry-lubricated bearings, and outgassing-certified coatings are available as custom builds.
Is backlash compensation supported in firmware?
Yes—bidirectional backlash correction is programmable via MotionStudio or third-party APIs, with user-defined compensation tables stored in non-volatile memory.
Does the open-frame variant compromise load capacity?
No—both closed-frame and open-frame models maintain identical 50 kg static load rating and torsional stiffness specifications per ISO 230-2 Annex B testing protocols.
What is the maximum recommended acceleration for optimal lifetime?
For 50,000-cycle service life under full load, peak acceleration should not exceed 0.5 g with stepper-driven configurations; linear motor variants support up to 2.0 g with appropriate current limiting.
