June 3, 2025 – PI, a global leader in precision motion control and nanopositioning, now offers the US-manufactured V-781 XY Stage series, setting new standards for precision, stability and ease of integration in high-performance motion systems. Engineered as a monolithic, single-module XY stage—rather than a stack of separate linear axes—V-781 stages deliver superior straightness, minimized yaw and enhanced geometric stability in a compact, low-profile design. By integrating direct-drive motors, crossed roller bearings and nanometer-resolution encoder feedback, it ensures exceptional accuracy, reliability and long-term performance.
US-Made Ultra-Precision XY Positioning Stages are available from 4×4” to 12×12” travel.
Key features:
- 110x110mm, 210x210mm and 310x310mm travel ranges
- Crossed roller bearings for ultra-smooth motion with superior load and moment capacity
- Direct measuring linear encoders with resolution to 1nm
- High acceleration (up to 1g) and velocity (up to 1m/s)
- Absolute encoder option eliminates the need for homing, enhancing start-up safety and operational efficiency
- Monolithic XY design eliminates misalignment issues common with stacked axes
- Optimized for maximum precision and stiffness, up to 50kg load capacity
- Lower profile with a wider bearing base for improved motion straightness and reduced pitch/yaw errors
- Ironless direct-drive 3-phase linear motors, for cogging-free, friction-free and backlash-free motion
- Long service life and minimal maintenance, ideal for 24/7 industrial use
- Pre-lubricated for lifetime performance
Performance and integration with advanced motion controllers
The V-781 offers bidirectional repeatability of ±0.07 microns and outstanding geometric accuracy in flatness, straightness, pitch and yaw. Whether in semiconductor wafer inspection, precision metrology, or micro-assembly, it excels in applications where sub-micron accuracy and dynamic responsiveness are essential. For maximum performance, V-781 stages are seamlessly integrated with PI’s A-81x series EtherCAT-based motion controllers.
ACS-hardware based motion controllers support multi-axis synchronization and are compatible with third-party EtherCAT equipment. Stability and dynamics can be boosted by running the optional advanced PILOT algorithms, that also reduce motor currents at the same time.
Why choose V-781 XY stages?
Designed for the most demanding precision automation and motion control tasks, the V-781 XY stage family integrates advanced mechanics, frictionless direct-drive technology, and advanced controller compatibility. It’s the ideal solution for mission-critical applications requiring exceptional accuracy, long-term stability and high-speed throughput.
发布者：Robots Team，转转请注明出处：https://robotalks.cn/pis-us-manufactured-xy-stages-provide-ultra-high-precision-linear-motion/
