ZOLIX KSA Series High-Precision Motorized Translation Stage

Overview

The ZOLIX KSA Series High-Precision Motorized Translation Stage is an engineered solution for applications demanding sub-micron motion fidelity, nanometer-scale positional stability, and exceptional geometric performance in linear displacement. Designed and manufactured in Beijing by ZOLIX—a vertically integrated OEM specializing in optical positioning systems—the KSA stage employs a precision-ground ball screw drive coupled with ultra-precision linear recirculating roller guides. This mechanical architecture ensures minimal elastic deformation, low hysteresis, and high rigidity under both static and dynamic loading conditions. The stage operates on the principle of electromechanical translation, where stepper motor rotation is converted into controlled linear displacement via a calibrated lead screw mechanism. Its performance envelope—characterized by straightness ≤20 µm, repeatability <3 µm, and closed-loop resolution of 1 µm—is validated per ISO 230-2:2014 (Test Code for Machine Tools – Part 2: Determination of Accuracy and Repeatability of Positioning Numerically Controlled Axes). It is explicitly intended for integration into metrology-grade optical benches, ultrafast laser alignment platforms, confocal scanning assemblies, and multi-axis coordinate measurement systems requiring deterministic, traceable motion.

Key Features

• Ultra-high geometric fidelity: Straightness and parallelism maintained within 10–20 µm across full travel (50–400 mm), verified using laser interferometry and autocollimation.
• Hybrid motion control architecture: Supports both open-loop stepping (2.5–3.125 µm resolution) and closed-loop servo operation via integrated high-stability optical encoder (1 µm resolution, ±0.5 µm linearity error).
• Rigorous mechanical construction: Ball screws ground to JIS B 1192 Grade C0, linear guides rated to ISO 10791-6 Class U2, and base plates stress-relieved and surface-finished to Ra ≤0.4 µm.
• Integrated safety logic: Dual mechanical limit switches (left/right) and a homing zero-reference switch conform to IEC 61800-5-2 functional safety requirements for motion subsystems.
• OEM-ready interface: Standard M4/M6 tapped mounting holes on base and top plate; 15-pin D-sub connector for encoder and motor signals; compatible with ZOLIX MC600 series motion controllers supporting RS-485, Ethernet/IP, and USB 2.0 host interfaces.
• Thermally stable design: Aluminum alloy structural components (6061-T6) with coefficient of thermal expansion matched to steel guideways, minimizing drift over ambient fluctuations (20 ±2 °C operational range).

Sample Compatibility & Compliance

The KSA stage is designed for rigid, non-vibratory payloads up to 50 kg (center-loaded), with moment load limits specified per ISO 10791-6 Annex C. It supports standard optical components—including kinematic mirror mounts, fiber couplers, objective lens carriers, and photodetector stages—without inducing measurable angular deviation or axial runout. All electrical interfaces comply with CE Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). Mechanical design adheres to ISO 9001:2015-certified manufacturing processes, and final calibration reports include uncertainty budgets traceable to NIM (National Institute of Metrology, China) standards. For regulated environments (e.g., ISO/IEC 17025 labs), the stage may be supplied with as-delivered calibration certificates (including bidirectional repeatability, backlash, and positioning error maps) upon request.

Software & Data Management

The KSA stage integrates natively with ZOLIX’s MC600 Motion Control Suite (v3.2+), a Windows-based application supporting script-driven sequencing (TCL/Lua), real-time position logging at ≥1 kHz sampling, and export to CSV/HDF5 formats. The controller firmware implements audit-trail functionality compliant with FDA 21 CFR Part 11 requirements when operated in validated mode—including electronic signatures, user-level access control (admin/operator/guest), and immutable event logs (motion commands, limit triggers, encoder faults). Third-party compatibility includes LabVIEW™ (NI-DAQmx drivers), MATLAB® (Instrument Control Toolbox), and Python (PySerial + custom ZOLIX API). All position data are timestamped using synchronized hardware clocks (±100 ns jitter), enabling precise correlation with external triggers from oscilloscopes, pulse generators, or camera frame sync signals.

Applications

• Femtosecond laser beam path alignment and delay-line scanning in pump-probe spectroscopy setups.
• High-resolution 3D surface profilometry using structured light or interferometric scanning heads.
• Precision stage for laser micromachining systems requiring <5 µm feature placement tolerance.
• Positioning element in automated optical inspection (AOI) stations for semiconductor wafer metrology.
• Multi-axis goniometer integration for synchrotron beamline end-stations requiring sub-arcsecond angular stability.
• Calibration reference platform for verifying performance of other translation stages per ISO 230-6:2020 (Diagonal displacement measurement).

FAQ

What encoder resolution is supported in closed-loop mode?
The standard configuration includes an imported linear optical encoder with 1 µm resolution and ±0.5 µm linearity error over full travel.
Can the KSA stage operate in vacuum environments?
Standard models are rated for ambient air only; vacuum-compatible variants (with stainless-steel screws, dry-lubricated guides, and outgassing-certified materials) are available under custom order (ZOLIX-VAC-KSA).
Is backlash compensation implemented in firmware?
Yes—MC600 controller firmware includes programmable backlash compensation tables, adjustable per axis, with bidirectional error mapping support.
What is the maximum allowable moment load for KSA200?
For KSA200, the maximum pitch/yaw moment load is 12 N·m, and roll moment is limited to 8 N·m—values derived from finite-element analysis and validated per ISO 10791-6 Annex D.
Does ZOLIX provide calibration documentation for GLP/GMP compliance?
Upon request, ZOLIX issues ISO/IEC 17025-accredited calibration certificates (performed by NIM-affiliated labs), including measurement uncertainty budgets and traceability statements.