Ring stack (R/RA series)

Piezoelectric ring actuators consist of a large number of ceramic discs in contact. Compared with the tube actuator, the ring actuator achieves higher rigidity and the expansion is twice as high. 

The ring actuator is available with housing (RA series) and without housing (R series). The actuator without housing is only connected to the ceramic top and ground plate. The actuator with housing is fixed with screws on the borehole. Ring actuators without housing can only be used in dynamic applications with additional preload. 

Ring actuators of the RA series are available on request with a strain gauge feedback sensor. 

Please ask for a top plate to screw for easy mounting of the mirrors. 

Contact us for a quote

Data sheets to download