Precision Linear Actuators Overview (Piezo-Motors & Electromagnetic Motors)



PiezoWalk® Linear Motors (High Force, Sub-Nanometer Resolution)

NEXLINE® / NEXACT® High-Force Actuators

NEXLINE® Piezo Hexapod

Piezo Motor Controllers for High Force Actuators
Ultrasonic Linear Motors (High Speed, Resolution to 50 nm)

PILine® Linear Motor Actuators

PILine® Translation Stages

PILine® Micro Motors
Classical Screw Drive Actuators

Motorized Linear Actuators

Cost Effective Stepper Actuators

Vacuum Actuators
Other Piezo (Linear) Actuators & Flexure Stages

Piezo Flexure Stages & Lever Amplified Actuators

Piezo Bender Actuators

Piezo Stack Actuators
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)