Z-Axis Positioning Stage
■ Dual-counterbalance frictionless design The SWI_ZS series dual-counterbalanced Z-axis precision direct drive stage is the best combination of speed, accuracy, system resolution, bi-directional repeatability, reliability, high rigidity and lightweight design. As a derivative of the SWI series, it delivers the same outstanding motion performance as the SWI series and is specifically designed for Z-axis applications requiring high accuracy, high rigidity and high dynamic response. The SWI_ZS series uses a frictionless dual counterbalance mechanism that maintains high performance while minimizing motor heating; the counterbalance capacity is user-adjustable from 0 to 20 kg. The dual counterbalance design minimizes the overall stage height and overturning torque while reducing the influence of straightness and angular runout on accuracy. ■ Non-contact direct drive The application of non-contact direct drive technology gives precision micro-machining and precision measurement equipment reliable, stable, accurate and fast positioning capability, making large-scale production possible. The SWI_ZS series dual-counterbalanced Z-axis precision direct drive stage is one of the representative products in which advanced direct drive technology achieves sub-micron positioning performance. Non-contact direct drive technology features high dynamic performance, zero cogging, sub-nanometer resolution, extremely low velocity ripple, high speed and high accuracy. The unique structural design and compact size allow high performance even in tight installation spaces. ■ System characteristics Extremely high system resolution is the foundation of outstanding accuracy, bi-directional repeatability and position stability. The SWI_ZS series achieves minimum incremental motion of better than 30 nm in linear-motor Z-axis applications. Being completely backlash-free with near-zero system hysteresis, the series enables precise, highly repeatable sub-micron motion. ■ Flexible, rapid system integration The SWI_ZS series dual-counterbalanced Z-axis precision direct drive stage features a standardized mounting pattern for easy system integration. 2-axis, 3-axis or more-axis applications can be flexibly assembled and configured using standard mounting holes. The flexible design greatly facilitates multi-axis configuration and applications.
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