Parallel pre-stressed actuators

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.

To obtain more information on our products feel free to download our Piezo & Magnetic Products Catalogue and/or to send an email at actuator(at)cedrat-tec.com

PPA10M

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

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

Performance

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

PPA20M

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA20M is the middle size version of the Parallel Pre-stressed Actuator M series.

Performance

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

PPA40M

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

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

Performance

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

PPA40L

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA40L is the smallest size version of the Parallel Pre-stressed Actuator L series.

Performance

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

PPA60L

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA60L is the middle size version of the Parallel Pre-stressed Actuator L series.

Performance

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

PPA80L

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA80L is the biggest size version of the Parallel Pre-stressed Actuator L series.

Performance

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

PPA120L

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA120L is the biggest size version of the Parallel Pre-stressed Actuator L series.

Performance

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

PPA40XL

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA40XL is the smallest size version of the Parallel Pre-stressed Actuator XL series.

Performance

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

PPA80XL

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA80XL is the middle size version of the Parallel Pre-stressed Actuator XL series.

Performance

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

PPA120XL

  • step file
  • drawing 3D
  • drawing 2D
  • data sheet
  • request for information
Description

The PPA120XL is the biggest size version of the Parallel Pre-stressed Actuator XL series.

Performance

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