Linear Actuators Introduction
In addition to classical precision actuators (leadscrew & ballscrew designs) PI also provides a number of advanced piezo motor actuators.
Piezo Linear Actuators / Motors
Ultrasonic PILine® ceramic motors are also referred to as resonant motors, and NEXACT® / NEXLINE® PiezoWalk® motors are also referred to as piezo step motors (not related to inertial motors). Both can, in principle, attain unlimited travel, yet they are very different in their design, specifications and performance. These long-travel devices are different in nature to the classical (shorter-travel) piezo stack, bender and flexure actuators
PILine® resonant motors are characterized by a simple design and high speed to 800 mm/s.
NEXLINE® & NEXACT® stepping piezo motor actuators are more complex and can achieve much higher resolution, forces and dynamic performance (analog mode).
A great advantage of piezo motors is their intrinsic steady-state auto-locking capability. It does away with servo dither and the accompanying heat generation, an undesirable feature of electromagnetic linear motors. Stepping and resonant (continuous) piezo motors are in principle nonmagnetic and vacuum-compatible, a requirement for many applications in the semiconductor optics and medical industry.
Product Information
 Piezo Stepping Linear Motor Products
(Selection Guide)
Piezo Ultrasonic Resonance Motor Products
(Selection Guide)
Screw Drive Linear Actuator Products
(Selection Guide)
Piezo Actuator Components
(Selection Guide)
Background Information
Piezo Linear Motor Introduction
Ultrasonic Piezomotor Working Principle
Piezo-Walk® Working Principle
Technical Papers on Piezo Motors
Markets / Applications for PI Products
Piezo University: Designing with Piezoelectrics
Groundbreaking Technologies from PI
Catalog Downloads (PDF)
PiezoWalk® Drives: Nanopositioning and
Picopositioning Actuators with Millimeter-Travel
PILine® Drives for Automation: Ultrasonic
Piezomotors for High-Speed Actuation and
Positioning
Piezo Linear Actuators & Motors
Piezo Actuators & Components
Piezo Nanopositioning Systems Catalog
Piezo Actuator Tutorial
Piezo Steering Mirrors Catalog
Piezo Driver/Controller Catalog
Piezo Assemblies Catalog
Piezoelectric Materials Catalog
Complete PI Catalog (20 MB)
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