PI offers a broad range of piezo ceramic linear actuators for demanding motion applications. The N-216 PiezoWalk Linear Actuator is designed for applications requiring long travel, high force and nanometer-class positioning stability in a compact package.

This nanopositioning actuator provides 20 mm travel with push/pull forces up to 600 N and holding forces up to 800 N while delivering ultra-fine positioning performance. Open-loop resolution reaches 0.03 nm, with closed-loop encoder resolution to 5 nm. Its self-locking design maintains position without continuous power, minimizing heat generation and enhancing long-term stability.

At the core of the N-216 is PI's PiezoWalk ceramic motor technology. Unlike conventional linear actuators that rely on rotary motors, screws or gears, coordinated piezo elements generate direct linear motion through a controlled walking sequence. This approach combines the long travel and high force of motorized actuators with the precision and responsiveness of piezo technology.

Source: PI

For ultra-fine adjustment tasks, the actuator also supports continuous dithering and pico-positioning modes for:

• Alignment
• Stabilization
• Drift compensation
• Precision correction

The N-216 high force, long travel, compact design, self-locking stability and piezo-level resolution is suited for demanding applications in optics, astronomy, aerospace, semiconductor manufacturing, metrology and nanopositioning. Applications include mirror positioning, active optics, wafer inspection, lithography alignment, process control and high-stability automation.

The piezotechnology-based drive principle also enables non-magnetic, clean and highly precise motion, making the actuator suitable for vacuum, cleanroom and radiation-sensitive environments where conventional electromagnetic drives may be limited.

For applications where position stability, load capacity and ultra-fine motion control are equally important, the N-216 NEXLINE PiezoWalk Linear Actuator provides a powerful alternative to traditional motor-driven linear actuators.