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Ring Multilayer Piezo Actuators/ PTH250 series Ring Multilayer Piezo Actuators/ PTH250 series

Brief description of Ring Multilayer Piezo Actuators:
1> 15 years experience of manufacture
2> CE, RoHS, SGS ISO9001:2008, ISO14001:2015
3> Custom designs are available

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  • Model: PTH250 series
  • Brand: PANT
  • Material: piezoelectric ceramics
  • Shape: Ring
  • Certifications: CE, RoHS, SGS ISO9001
  • Working voltage: -20 to 250V DC
  • Operating temperature range: -20 to 120℃
  • Wire lead: red is electrode (+), and black is cathode (-)
  • Recommended preload for dynamic operation: 15MPa
  • Maximum preload for constant force: 20MPa
  • Product Description
  • Payment&shipping
  • Materials performance
  • Certifications

 Compact size
 Accurate positioning in nm

 High-speed response in ms
 Large blocking force

 High energy conversion efficiency, low power consumption and no electromagnetic noise
  Easy to be controlled by voltage


Scope of applications

 R&D and industry
 Precision mechanics and mechanical engineering

 Life sciences, Medicine and Biology

 Nano positioning, Fiber positioning, High-speed switching, Tunable lasers

Part numbering




Dimensions Nominal displacement Blocking force Stiffness Electrical capacitance Resonance Frequency
OD/ID/H [µm@250V] [N@250V] [N/µm] [µF] [kHz]
 [mm] ±10%

 ±20% ±20%
PTH2501203201 Φ12/Φ3/20 20 3500 175 4.6 75
PTH2502515301 Φ25/Φ15/30 30 9000 300 13.5 50
*   Customize on request. 
We accept T/T& Paypal now.


Goods in stock will be shipped with 48 hours after receiving the full payment. 

·     We ship the goods to the address which is given in PayPal payment. Please make sure that address in PayPal is correct.
·     we will give you the tracking number after we send out the goods, in general, you will receive the goods within five days.
·     If you have any questions, please kindly contact us by email(our email address is alicezhou@pantpiezo.com)

Key Technical Index Unit Value
Relative dielectric constant εr3T - 3500±20%
Electromechanical coupling factor  Kp - 70%
Longitudinal piezoelectric strain coefficient  d33 10-12C/N ≥650
Piezoelectric voltage constant  g33 10-3Vm/N 17
Elastic flexible coefficient  S11E 10-12m2/N 14.3
Elastic flexible coefficient  S33E 10-12m2/N 18.5
Dielectric loss  tgδ 10-3 ≤1.5
M quality factor  Qm - 45
Curie temperature  TC 240
Density  ρ g/cm3 7.9