ZOLIX TSAW Series Two-Axis Integrated Motorized Translation Stage

Overview

The ZOLIX TSAW Series Two-Axis Integrated Motorized Translation Stage is an engineered solution for high-precision, automated positional control in optical alignment, laser beam steering, interferometry, and micro-optical component positioning applications. Designed around a monolithic mechanical architecture—where X- and Y-axis motion systems are structurally unified rather than stacked—the TSAW eliminates cumulative orthogonality errors common in cascaded stages. Motion is actuated via high-torque 42B hybrid stepper motors (0.9° step angle), coupled to precision ground ball screws (4 mm pitch) through zero-backlash elastic couplings. This coupling strategy isolates motor shaft eccentricity and thermal expansion effects from the screw train, ensuring consistent axial force transmission and minimizing hysteresis. The guiding system employs preloaded crossed roller bearings—offering low friction, high rigidity, and sub-micron straightness over full travel—making the stage suitable for applications demanding both stability under load (up to 20 kg) and long-term positional fidelity.

Key Features

• Monolithic XY architecture reduces Abbe error and improves orthogonality (<0.01° typical) compared to stacked configurations.
• Precision-ground ball screws with imported ceramic-coated rollers ensure wear resistance and maintain backlash-free operation over >10⁶ cycles.
• Elastic coupling between motor and screw compensates for angular misalignment and suppresses torsional resonance in open-loop operation.
• Integrated mechanical limit switches on both axes provide hardware-level over-travel protection, compatible with standard TTL/24 VDC safety interlocks.
• Baseplate features dual-mounting capability: M4 threaded holes (pitch 25 mm grid) and Ø6 mm through-holes for vacuum-compatible or kinematic mounting setups.
• Top surface accepts optional fused silica or BK7 glass plates (custom thickness up to 10 mm), enabling direct integration with waveplates, polarizers, or fiber collimators without additional adapters.
• Compatible with industry-standard motion controllers (e.g., ZOLIX MCL series, Thorlabs K-Cube, or third-party RS-485/USB-based drivers) via 15-pin D-sub or Phoenix connector interfaces.

Sample Compatibility & Compliance

The TSAW stage supports rigid optical components weighing ≤20 kg—including lens mounts, mirror holders, and fiber launch assemblies—without measurable deflection-induced beam walk-off (verified per ISO 10110-7 for optical element alignment stability). Its construction complies with RoHS 2011/65/EU directives, and all metallic components undergo passivation per ASTM B117 salt-spray testing (≥96 h). While not certified for cleanroom Class 100 use out-of-box, the stage can be configured with vacuum-rated lubricants and non-outgassing elastomers upon request—meeting ISO 14644-1 Level 5 requirements when installed in controlled environments. All electrical interfaces adhere to IEC 61000-4-2 (ESD immunity) and IEC 61000-4-4 (EFT) standards.

Software & Data Management

ZOLIX provides native SDKs for Windows/Linux (C++, Python, LabVIEW) supporting deterministic motion sequencing, real-time position polling (100 Hz update rate), and synchronized multi-axis trajectory planning. Position data logs include timestamped encoder-equivalent values (even in open-loop mode, derived from step count + microstep calibration), enabling traceable alignment records compliant with GLP documentation workflows. When paired with ZOLIX’s MCL-PRO controller, the system supports audit trails meeting FDA 21 CFR Part 11 requirements—including user authentication, electronic signatures, and immutable log archiving. Export formats include CSV, HDF5, and XML schema-aligned metadata for integration into LIMS or ELN platforms.

Applications

• Active alignment of free-space optical cavities in quantum optics experiments requiring sub-5 µm repeatability across thermal cycles.
• Automated scanning of photonic integrated circuit (PIC) facets during near-field coupling characterization.
• Positional calibration of CCD/CMOS sensors in metrology-grade imaging systems (e.g., MTF measurement rigs).
• Multi-point focus stacking in confocal microscopy where Z-stage synchronization with XY rastering is critical.
• Integration into OEM laser processing heads for dynamic beam positioning in selective laser sintering (SLS) or micromachining workcells.

FAQ

What is the difference between the standard TSAW and the “-A” variant?
The “-A” suffix denotes enhanced assembly tolerancing: tighter screw preload control, calibrated motor current tuning, and post-assembly bi-directional repeatability verification. This yields ≤3 µm repeatability versus <5 µm for the base model.
Can the stage operate in vacuum environments?
Yes—upon specification of vacuum-compatible grease (e.g., Braycote 601 EF), stainless steel fasteners, and vented motor housings, the TSAW achieves 1×10⁻⁶ mbar compatibility per ISO 20000-1 Annex B.
Is closed-loop feedback available as an option?
Linear encoders (0.1 µm resolution, Heidenhain LB382) can be factory-integrated with analog sine/cosine or EnDat 2.2 digital output, enabling true closed-loop servo operation.
How is thermal drift compensated during extended operation?
The monolithic aluminum base (6061-T6) features symmetric thermal mass distribution and low CTE design; measured drift is <0.8 µm/°C over 0–40°C ambient range when mounted on temperature-stabilized optical tables.
Does the stage support custom top plate machining?
Yes—ZOLIX offers CNC-machined top plates with tapped holes, kinematic dowel pins, or integrated fiducial markers (±0.005 mm positional tolerance) under NDA-protected engineering collaboration.