Parallel pre-stressed actuators

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.

To obtain more information on our products feel free to ask for our Piezo & Magnetic Products Catalogue and/or to contact us.

Parallel Pre-stressed Actuator - PPA10M

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Description

The PPA10M is the smallest size version of the Parallel Pre-stressed Actuator M series.

Performances
Stroke(µm):7.72; Blocked force(N):1001; Resonance frequency(Hz):60992.08; Dimensions(mm): 18*10*9
Available options
Strain Gauges; Non Magnetic; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA20M

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Description
The PPA20M is the middle size version of the Parallel Pre-stressed Actuator M series.
Performances
Stroke(µm):19.38; Blocked force(N):926; Resonance frequency(Hz):38067.18; Dimensions(mm): 28*10*9
Available options
Strain Gauges; Non Magnetic; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA40M

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Description
The PPA40M is the biggest size version of the Parallel Pre-stressed Actuator M series.
Performances

Stroke(µm):35,37; Blocked force(N):1017; Resonance frequency(Hz):21854,19; Dimensions(mm): 48*10*9

Available options
Strain Gauges; Non Magnetic; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA40L

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Description
The PPA40L is the smallest size version of the Parallel Pre-stressed Actuator L series.
Performances
Stroke(µm):44.32 Blocked force(N):2957 Resonance frequency(Hz):14250.90 Dimensions(mm): 57*23,5*18
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA60L

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Description
The PPA60L is the middle size version of the Parallel Pre-stressed Actuator L series.
Performances
Stroke(µm):68.87 Blocked force(N):3500 Resonance frequency(Hz):10956 Dimensions(mm):77*23,5*18
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA80L

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Description
The PPA80L is the biggest size version of the Parallel Pre-stressed Actuator L series.
Performances
Stroke(µm):80.62 Blocked force(N):3500 Resonance frequency(Hz):8403 Dimensions(mm):97*23,5*18
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA120L

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Description
The PPA120L is the biggest size version of the Parallel Pre-stressed Actuator L series.
Performances
Stroke(µm):130;Blocked force(N):2957;Resonance frequency(Hz):6175; Dimensions(mm): 137*18*18
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA40XL

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Description
The PPA40XL is the smallest size version of the Parallel Pre-stressed Actuator XL series.
Performances
Stroke(µm):42.90;Blocked force(N):6653;Resonance frequency(Hz):13190.75; Dimensions(mm):60*30*30
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA80XL

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Description
The PPA80XL is the middle size version of the Parallel Pre-stressed Actuator XL series.
Performances
Stroke(µm):90.50; Blocked force(N):6852;Resonance frequency(Hz):8500; Dimensions(mm): 100*30*30
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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Parallel Pre-stressed Actuator - PPA120XL

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Description
The PPA120XL is the biggest size version of the Parallel Pre-stressed Actuator XL series.
Performances
Stroke(µm):129.83;Blocked force(N):6753;Resonance frequency(Hz):6175.44; Dimensions(mm): 140*30*30
Available options
Strain Gauges; Vacuum; Specific Interface
Status
Standard
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