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Piezo Parallel Pre-stressed Actuator (PPA)

Piezo Parallel Pre-stressed Actuator (PPA)

The parallel pre-stressed actuator is a preloaded stack of low voltage piezoelectric ceramics (MLA). The preload (or pre-stress) is obtained from an external spring frame made of stainless steel which protects the MLA against tensile force and provides mechanical interfaces for the user allowing an easier integration. This prestressing frame applies an optimal preloading force to the MLA  which ensures a longer lifetime and better performance with dynamic applications than traditional preloaded actuators.

Designed by CEDRAT TECHNOLOGIES, this new direct piezo Actuator results from contracts carried out for CNES, the French Space Agency. The PPA model is lighter than the compacting Direct Piezo Actuator, with the same electromechanical properties. Its compact size also makes integration easier in mechanical assembly.

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Piezo Parallel Pre-stressed Actuator (PPA)  PPA10M
Description: The PPA10M is the smallest size version of the Parallel Pre-stressed Actuator M series.   Performance: Stroke(碌m): 8; Blocked force(N): 800; Resonnance frequency(Hz): 65000; Dimensions(mm): 18*10*9 Available options: Strain Gages; Non Magnetic; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA)  PPA120XL
Description: The PPA120XL is the biggest size version of the Parallel Pre-stressed Actuator XL series.   Performance: Stroke(碌m): 130; Blocked force(N): 7000; Resonance frequency(Hz): 5000; Dimensions(mm): 140*30*30 Available options: Strain Gages; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA20M
Description: The PPA20M is the middle size version of the Parallel Pre-stressed Actuator M series.   Performance: Stroke(碌m): 20; Blocked force(N): 800; Resonance frequency(Hz): 38800 ; dimensions(mm): 28*10*9 Available options: Strain Gages; Non Magnetic; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA40L
Description: The PPA40L is the smallest size version of the Parallel Pre-stressed Actuator L series.   Performance: Stroke(碌m): 40; Blocked force(N): 3500; Resonance frequency(Hz): 15500; Dimensions(mm): 57*23,5*18 Available options: Strain Gages; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA40M
Description: The PPA40M is the biggest size version of the Parallel Pre-stressed Actuator M series.   Performance: Stroke(碌m): 40; Blocked force(N): 800 Resonance frequency(Hz): 25000 ; Dimensions(mm): 48*10*9 Available options: Strain Gages; Non Magnetic; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA40XL
Description: The PPA40XL is the smallest size version of the Parallel Pre-stressed Actuator XL series.   Performance: Stroke(碌m): 38; Blocked force(N): 7000; Resonance frequency(Hz): 15000; Dimensions(mm): 60*30*30 Available options: Strain Gages; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA60L
Description: The PPA60L is the middle size version of the Parallel Pre-stressed Actuator L series.   Performance: Stroke(碌m): 60; Blocked force(N): 3500 Resonance frequency(Hz): 9500; Dimensions(mm): 77*23,5*18 Available options: Strain Gages; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA80L
Description: The PPA80L is the biggest size version of the Parallel Pre-stressed Actuator L series.   Performance: Stroke(碌m): 90; Blocked force(N): 3500; Resonance frequency(Hz): 8500; Dimensions(mm): 97*23,5*18 Available options: Strain Gages; Vacuum; Specific Interface Status: Standard

Piezo Parallel Pre-stressed Actuator (PPA) PPA80XL
Description: The PPA80XL is the middle size version of the Parallel Pre-stressed Actuator XL series.   Performance: Stroke(碌m): 90; Blocked force(N):7000; Resonance frequency(Hz): 8500; Dimensions(mm): 100*30*30 Available options: Strain Gages; Vacuum; Specific Interface Status: Standard

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