Multilayer Piezo Actuators

Piezo Direct’s multilayer piezo stack actuators are constructed with hundreds of inner electrodes and thin ceramic layers, which co-fire to form a monolithic ceramic with a maximum single device height of 36 mm. Stack actuators feature a longitudinal deformation when voltage is applied. In most cases, displacement can reach up to 0.15% of the total product length within a millisecond, which exerts a high force.

Multilayer actuators are often used as linear electromechanical drivers or motors. They act mainly as an expanding element generating a compressive force. The complete motion cycle is nearly proportional to a voltage signal input from DC, up to high frequencies.

If none of these products matches your requirements, click here to learn more about working with our engineers to build a custom component.

Nano-positioning
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Microscope and Imaging
3D Printer
Linear motors
Pumps, Valve drive  

OClics
Fiber position
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Tunable lasers

Medical & Life Science
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Piezo valve for drug dispenser

Aerospace & Automobile
Thrusters
Active trailing edge
Fuel injector for common rail system

Piezoelectric Injection Valve
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Camera module dispense

Multilayer Piezo Rectangular Actuators

*Red wire (+), black wire (-)

Multilayer Piezo Ring Actuators

*Red wire (+), black wire (-)

Multilayer Piezo Round Actuators

*Red wire (+), black wire (-)

Multilayer Piezo Special-Shaped Actuators

*Red wire (+), black wire (-)

Custom Designs

Tips mounted type
Strain gauge glued type

Specifications – Rectangular Actuators

PDJ150 Series for Rectangular Actuators – Max. driving voltage = 150VDC

Model Dimensions LxWxH [mm] Nominal Displacement [µm@150V] ±10% Blocking Force [N@150V] Stiffness [N/µm] Capacitance [µF@1V,1kHz] ±20% Resonant Frequency [kHz] ±20%
PDJ1500303041 3x3x5 4 330 80 0.14 300
PDJ1500303051 3x3x6 5 330 66 0.18 250
PDJ1500302091 3x2x9 9 250 28 0.25 165
PDJ1500303101 3x3x10 10 330 33 0.30 150
PDJ1500302181 3x2x18 18 250 14 0.60 83
PDJ1500303181 3x3x18 18 330 18 0.50 83
PDJ1500505051 5x5x6 5 900 180 0.44 250
PDJ1500505101 5x5x10 10 900 90 0.80 150
PDJ1500505201 5x5x18 20 900 45 1.50 83
PDJ1500505202 5x5x20 22 900 41 1.80 74
PDJ1500505301 5x5x28 30 900 30 2.40 53
PDJ1500505401 5x5x36 40 900 28 3.00 52
PDJ1500505402 5x5x34 40 900 28 2.90 44
PDJ1500505403 5x5x40 44 900 20 3.60 37
PDJ1500505601 5x5x54 60 900 15 4.50 28
PDJ1500707101 7x7x10 10 1800 1801 1.60 150
PDJ1500707201 7x7x18 20 1800 90 3.00 83
PDJ1500707301 7x7x28 30 1800 60 4.70 53
PDJ1500707361 7x7x30 36 1800 50 5.00 50
PDJ1500707362 7x7x30 36 1800 50 5.00 50
PDJ1500707381 7x7x32 38 1800 47 5.30 47
PDJ1500707401 7x7x36 40 1800 45 6.10 42
PDJ1500707501 7x7x42 50 1800 36 6.90 36
PDJ1501010101 10x10x10 10 3600 360 3.20 150
PDJ1501010201 10x10x18 20 3600 180 6.00 83
PDJ1501010301 10x10x28 30 3600 120 9.20 53
PDJ1501010401 10x10x36 40 3600 90 12.00 42
PDJ1501010501 10x10x46 50 3600 72 15.20 33
PDJ1501010601 10x10x54 60 3600 66 18.00 28
PDJ1501414101 14x14x10 10 7200 720 6.20 150
PDJ1501414201 14x14x20 20 7200 360 13.10 75
PDJ1501414301 14x14x30 30 7200 240 19.30 50
PDJ1501414401 14x14x40 40 7200 180 26.20 37

PDJ200 Series for Rectangular Actuators – Max. driving voltage = 200VDC

Model Dimensions LxWxH [mm] Nominal Displacement [µm@200V] ±10% Blocking Force [N@200V] Stiffness [N/µm] Capacitance [µF@1V,1kHz] ±20% Resonant Frequency [kHz] ±20%
PDJ2000303051 3x3x6 5 330 66 0.15 250
PDJ2000303101 3x3x10 10 330 33 0.27 150
PDJ2000505051 5x5x6 5 900 180 0.20 250
PDJ2000505101 5x5x10 10 900 90 0.52 150
PDJ2000505121 5x5x12 12 900 75 0.43 125
PDJ2000505201 5x5x18 20 900 45 0.67 83
PDJ2000505301 5x5x28 30 900 30 1.10 53
PDJ2000505302 5x5x30 30 900 30 1.10 50
PDJ2000505401 5x5x36 40 900 23 1.34 42
PDJ2000505402 5x5x35 40 900 23 1.34 43
PDJ2000707101 7x7x10 10 1800 180 0.69 150
PDJ2000707201 7x7x18 20 1800 90 1.30 83
PDJ2000707301 7x7x28 30 1800 60 2.00 53
PDJ2000707381 7x7x32 38 1800 47 2.40 47
PDJ2000707401 7x7x36 40 1800 45 2.60 42
PDJ2000707501 7x7x42 50 1800 36 3.10 36
PDJ2001010101 10x10x10 10 3600 360 1.50 150
PDJ2001010201 10x10x18 20 3600 180 2.70 83
PDJ2001010301 10x10x28 30 3600 120 4.30 53
PDJ2001010401 10x10x36 40 3600 90 5.50 42
PDJ2001414101 14x14x10 10 7200 720 2.80 150
PDJ2001414201 14x14x20 20 7200 360 5.80 75
PDJ2001414301 14x14x30 30 7200 240 8.60 50
PDJ2001414401 14x14x40 40 7200 180 12.00 37

Specifications – Ring Actuators

PDH150 Series for Ring Actuators – Max. driving voltage = 150VDC

Model Dimensions OD/ID/H [mm] Nominal Displacement [µm@150V] ±10% Blocking Force [N@150V] Stiffness [N/µm] Capacitance [µF@1V,1kHz] ±20% Resonant Frequency [kHz] ±20%
PDH1500525051 Φ5/Φ2.5/6 5 600 120 0.3 250
PDH1500525101 Φ5/Φ2.5/10 10 700 70 0.5 150
PDH1500525201 Φ5/Φ2.5/18 20 700 35 1.0 83
PDH1500845101 Φ8/Φ4.5/10 10 1300 130 0.8 150
PDH1500845201 Φ8/Φ4.5/18 20 1300 65 1.5 83
PDH1501006101 Φ9.5/Φ5.5/10 10 1500 150 1.2 150
PDH1501005101 Φ10/Φ5.5/10 10 1500 150 1.2 150
PDH1501205201 Φ12/Φ5/20 20 3400 170 6.0 75
PDH1501206101 Φ12/Φ6/10 10 3000 220 2.4 150
PDH1501206161 Φ12/Φ6/16 18 3000 122 4 94
PDH1501206201 Φ12/Φ6/20 22 3000 100 5 75
PDH1501304201 Φ13/Φ4/20 22 3600 163 7.2 75
PDH1502015051 Φ20/Φ15/6 5 4000 800 1.4 250
PDH1502619201 Φ26/Φ19/18 20 7200 3600 14 83

PDH200 Series for Ring Actuators – Max driving voltage = 200VDC

Model Dimensions OD/ID/H [mm] Nominal Displacement [µm@200V] ±10% Blocking Force [N@200V] Stiffness [N/µm] Capacitance [µF@1V,1kHz] ±20% Resonant Frequency [kHz] ±20%
PDH2001304201 Φ13/Φ4/20   20 3600 180 4.6 74
PDH2002015051 Φ20/Φ15/6   5 4000 800 1.3 250
PDH2002619201 Φ26/Φ19/18 20 7200 360 7.7 80
PDH2001304401 Φ13/Φ4/40 40 3600 90 9.2 37
PDH2002619351 Φ26/Φ19/35 35 7200 205 15.3 43

High Pressure Series for Ring Actuators – Max. driving voltage = 1000VDC

Model Dimensions OD/ID/H [mm] Nominal Displacement [µm] ±10% Blocking Force [N] Stiffness [N/µm] Capacitance [µF@1V,1kHz] ±20% Resonant Frequency [kHz] ±20%
PDH2501203201 Φ12/Φ3/20 20@250V 3500@250V 175 4.6 75
PDH2502515301 Φ25/Φ15/30 30@250V 9000@250V 300 13.5 50
PDH10002515301 Φ25/Φ15/30 30@1000V 8600@1000V 280 3 50

Specifications – Round Actuators

PDY150 Series for Round Actuators – Max. driving voltage = 200VDC

Model Dimensions OD/H [mm] Nominal Displacement [μm] ±10% Blocking Force [N] Stiffness [N/μm] Capacitance
[μF@1v,1kHz] ±20%
Resonant Frequency [kHz] ±20%
PDY15014241 Φ14.2/24 24@150V 7500@150V 312 16 62
PDY15014481 Φ14.2/48 48@150V 7500@150V 156 30 31
PDY15014201 Φ14.7/20 2 20@150V 7500@150V 375 13 75
PDY15014401 Φ14.7/40 40@150V 7500@150V 188 27 38
PDY20014051 Φ14.2/6 5@150V 7500@200V 1500 1.4 250

Specifications – Special-shaped Actuators

PDT150 Series for Special-shaped Actuators – Max. driving voltage = 150VDC

Model Dimensions ID/ID/H [mm] Nominal Displacement [μm@150V] ±10% Blocking Force [N@150V] Stiffness [N/μm] Capacitance [μF@1v,1kHz] ±20% Resonant Frequency [kHz]±20%
PDT150080804161 7.5×7.5/Φ3.5/16 16 1600 100 1.6 94

Remarks

  1. Measuring voltage range: 0 to150V and/or 0 to 200V and/or 0 to 1000V
  2. Recommended preload for dynamic operation: 15MPa
  3. Maximum preload for constant force: 20MPa
  4. Operating voltage: -20 to 150V DC and/or -20 to 200V DC
  5. Operating temperature range: -20° to 120°
  6. Wire lead, the red is for electrode (+) and the black is for electrode (-)

*Customization available on request

*All specifications are subject to changes, please check with Piezo Direct before ordering

  1. The actuator must be placed vertically on a table and the table must be keCI level before testing. The test contactor must be set vertically on the table and keCI kept in contact with the center of top of the actuator during testing.
  2. Only DC voltage should be applied
  3. The red lead wire is the positive (+) and the black lead wire is the negative (-).
Figure 1: Installation and Application Method

Testing Curve

Figure 2: Displacement vs. Voltage Diagram (quasi-static)
Figure 4: Displacement vs. Voltage Diagram (dynamic)
Figure 4: Displacement vs. Voltage Diagram (dynamic)
Figure 3: Displacement vs. Voltage Diagram (quasi-static)
Figure 5: Capacitance vs. Temperature Diagram (quasi-static)
Figure 7: Displacement vs. Blocking Force Diagram (dynamic)

Mount and Connect

  1. The actuator should be connected in-line with the element, and be driven by rigid connection.
  2. No load is prohibited. Please apply 20Mpa preload if response time is below 100μs. Please refer to the tables below for details.
  3. Do not apply a voltage exceeding max. driving voltage value to the actuator
  4. The actuator should be used in a dry atmosphere below 75% RH and in a range of temperature -20~120℃ Otherwise, a drop in insulation resistance or shortened working life may occur.
  5. The resin-coated type of actuator is weak to a tensile force because of its structure. As a result, the direction of the generated force must be the same as the center axis of the actuator. Please see the examples shown below.

Preload Force for Rectangle Actuators

Length [mm] Width [mm] Normal Pressure [MPa] Max. Pressure [MPa] Proposal Preload Force [N] Max. Preload Force [N]
3 3 15 20 135 180
5 5 15 20 375 500
7 7 15 20 735 980
10 10 15 20 1500 2000
14 14 15 20 2940 3920

Preload Force for Ring Actuators

Length [mm] Width [mm] Normal Pressure [MPa] Max. Pressure [MPa] Proposal Preload Force [N] Max. Preload Force [N]
5 2.5 15 20 220 300
8 4.5 15 20 510 690
10 5.5 15 20 820 1100
12 5 15 20 1400 1870
12 6 15 20 1400 1870
10 5.5 15 20 700 940
20 15 15 20 2060 2750
13 4 15 20 1800 2400
26 19 15 20 3700 4950
12 3 15 20 1590 2120
25 15 15 20 4710 6280
Outer Diameter [mm] Normal Pressure [MPa] Max. Pressure [MPa] Proposal Preload [N] Max. Preload [N]
14.2 15 20 2400 3200
14.7 15 20 2500 2400

Preload Force for Special-Shaped Actuators

Length [mm] Width [mm] ID [mm] Normal Pressure [MPa] Max. Pressure [MPa] Proposal Preload [N] Max. Preload [N]
7.5 7.5 3.5 15 20 700 940