ZOLIX PSA Series Motorized Translation Stage

Overview

The ZOLIX PSA Series Motorized Translation Stage is a high-precision, stepper-motor-driven linear positioning platform engineered for demanding optical alignment, interferometry, spectroscopy, and automated microscopy applications. Built upon a robust mechanical architecture featuring ground ball screws, preloaded linear guide rails, and elastomeric couplings, the PSA stage delivers deterministic motion control with sub-micron repeatability and minimal hysteresis. Its operation relies on open-loop stepper motor actuation coupled with microstepping drivers—enabling precise incremental displacement without feedback sensors, while maintaining compatibility with closed-loop upgrades via external encoders. Designed specifically for integration into multi-axis optical breadboards and custom optomechanical assemblies, the PSA series supports both standalone operation via RS232 command protocol and synchronized coordination within larger motion systems using ZOLIX’s SC300 or MC-series controllers. All models conform to fundamental metrological requirements for laboratory-grade translation stages, including defined straightness, parallelism, and backlash specifications traceable to ISO 10360-2 and ANSI B89.3.1 standards.

Key Features

• Integrated stepper motor with factory-tuned torque profile for smooth acceleration/deceleration and stall-free low-speed operation
• Ground ball screw (4 mm or 5 mm pitch) paired with high-load-capacity linear guide rails for long-term dimensional stability and wear resistance
• RS232 serial interface compliant with standard ASCII command set (e.g., “MOV X=10.25”, “POS?”, “HOME”) enabling direct integration with LabVIEW, Python, MATLAB, or custom C/C++ applications
• Dual optical limit switches (forward/reverse) and a dedicated home position sensor ensure mechanical safety and repeatable absolute referencing
• Rear-mounted manual override knob with 1:1 mechanical coupling allows precise hand adjustment without disengaging the drive train
• Standardized mounting pattern (M4 and M6 counterbored holes + T-slots) facilitates rapid assembly of XY, XYZ, or goniometric configurations using ZOLIX or third-party kinematic mounts
• Electromechanical design optimized for low vibration and thermal drift—tested under ambient lab conditions (20–25°C, <50% RH)

Sample Compatibility & Compliance

The PSA stage accommodates payloads up to 5 kg (depending on travel length and orientation) while maintaining specified motion fidelity. It is routinely deployed in setups involving optical components such as mirrors, beam splitters, fiber collimators, and detector mounts—where positional uncertainty must remain below ±3 µm over repeated cycles. All units undergo 100% functional testing for repeatability, backlash, and switch response prior to shipment. The device complies with CE directives for electromagnetic compatibility (EN 61000-6-2 for immunity, EN 61000-6-4 for emissions) and environmental compliance under RoHS 2015/863/EU. While not certified for medical or aerospace use, its construction meets baseline GLP-aligned documentation practices—including batch-level calibration records and material traceability for critical components (e.g., THK guide rails, HIWIN ball screws).

Software & Data Management

ZOLIX provides native driver support for Windows-based platforms via DLL libraries and documented SCPI-like command syntax. Third-party integration is supported through standard VISA or serial port abstraction layers. The SC300 controller firmware includes non-volatile memory for storing up to 16 user-defined position presets, trajectory profiles (point-to-point, continuous scan), and configurable acceleration ramps. Audit trails are not embedded in the stage itself, but when operated through validated SC300 units running firmware v3.2+, full command logging—including timestamps, operator ID fields, and checksum-verified responses—can be exported in CSV format for 21 CFR Part 11–aligned record retention where required by QA/QC protocols.

Applications

• Active alignment of laser diodes and photonic integrated circuits during packaging
• Automated wavelength scanning in monochromators and tunable filter systems
• Position-critical sample translation in Raman and fluorescence mapping setups
• Multi-axis nanopositioning for adaptive optics wavefront correction subsystems
• Calibration reference staging in metrology labs performing ISO 10110 surface form verification
• Integration into OEM instrumentation where space-constrained, cost-effective linear motion is required without servo complexity

FAQ

Is encoder feedback available as an option?
No—PSA stages operate in open-loop mode only. For closed-loop operation, users must integrate external linear encoders (e.g., Renishaw RESOLUTE) and adapt motion control logic accordingly.
Can the PSA stage be mounted vertically or inverted?
Yes—mechanical design supports all orientations; however, maximum payload must be reduced by 40% in vertical configurations to maintain repeatability and prevent lead screw creep.
What is the warranty coverage?
ZOLIX offers a 24-month limited warranty covering defects in materials and workmanship under normal laboratory use conditions.
Are CAD models available for mechanical integration?
Yes—STEP and IGES files for all PSA variants are provided free of charge upon request with signed NDA.
Does the RS232 interface support hardware flow control?
Yes—RTS/CTS handshake is implemented and enabled by default in firmware v2.7+.