Products

Piezoelectric Actuator for HDD

Overview

Piezoceramic Actuators

Our unique material and processing technology realize​ one of world’s smallest actuator capable and suitable​ to precision equipment that controls position and vibration.​
NGK mass-produces piezoelectric actuator for hard disk derive (HDD). ​

Features​

  • Small size and high torque​
  • Fine displacement control of nanometer order
  • Low waste and outgas​

Dimensions and performance (example)​

Dimensions Performance​
Width​ (mm) Depth​ (mm) Height​ (mm) Displacement​ (nm)*
Laminated type​ 0.3 1 0.05 75
Single plate type​ 0.5 1 0.05 30
  • *Displacement when applying 6 Vpp in longitudinal direction

Application examples

Micro actuator for HDD

Our unique material and processing technology realize one of world’s smallest actuator capable and suitable to precision equipment that controls position and vibration. NGK’s micro actuators are being used in data centers all over the world.

Taking essential role to enhance reliability and capacity of HDD​

Micro actuator for HDD

Operating mechanism

Operating mechanism

Inquiry about Electronic Components Business

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