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Piezo Actuators

Piezo Motors and Stages

Piezo ActuatorsOverviewWe supply various piezo motors and stages from CEDRAT TECHNOLOGIES. Stepping Piezoelectric Actuators (SPA) are new long-stroke linear or rotating piezoelectric motors for micro/nano positioning applications benefiting from proven APA® heritage....

Piezo Drivers and Controllers

Piezo ActuatorsOverviewTo fulfill various requirements in terms of driving and control conditions for its piezo actuators (static, pulse, dynamic), CEDRAT TECHNOLOGIES has developed 2 different families of piezo drivers and controllers:  Compact PCB devices for...

Piezo Actuator Mechanisms

Piezo ActuatorsOverviewMainly based on the APA® concept, CEDRAT TECHNOLOGIES has developed different piezo actuator mechanisms in order to fulfil its customers’ requests for several degrees of freedom kinematics. These mechanisms take advantage of the APA® concept...

Amplified Piezoelectric Actuators (APA®)

Piezo ActuatorsOverviewPatented by CEDRAT TECHNOLOGIES, amplified piezoelectric actuators are a mechanical magnified preloaded stack of low voltage piezoelectric ceramics (MLA). The mechanical amplification is obtained thanks to an external elliptical shell made of...

Parallel Pre-stressed Piezo Actuators


PPA40L Parallel prestressed actuator from Cedrat, next to paperclipParallel pre-stressed piezo actuators (PPA) are preloaded low voltage piezoelectric actuators using a direct-acting multilayer ceramic stack (MLA).

Most conventional Direct Piezo Actuators use an MLA preloaded by Belville washers on the end of the stack, enclosed in a rigid case. The PPA design, however, obtains its preload (or pre-stress) from an external spring frame made of stainless steel which protects the MLA against tensile force and provides convenient mechanical interfaces for the user. The PPA is lighter and more compact than competing designs, making mechanical integration easier. The pre-stressing frame applies an optimal preload force to the MLA stack which ensures a longer lifetime, lower noise and significantly improved dynamic performance.

Three series (M, L, XL) of PPAs are available in order to meet the different needs in terms of stroke, force and dimensions.

To chat further about piezo devices, please just get in touch!

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