https://routech.cz/produkty/piezomotor/
PiezoMotor - Routech
piezomotor
https://www.physikinstrumente.co.uk/en/about/news-press/news-and-press-detailpage/compact-linear-stage-with-ultrasonic-piezomotor
Compact Linear Stage with Ultrasonic Piezomotor
Ultrasonic piezomotors are small, fast, and inexpensive. They are especially suitable for applications with low operating cycles.
linear stagecompactultrasonicpiezomotor