PILine® OEM Miniature Drives
Miniature motors with Integrated Drive Electronics
This piezo linear drive is smaller than a thumb and offers a travel range of up to 4 mm.
This piezo linear drive is smaller than a thumb and offers a travel range of up to 4 mm.
  • Easy Mounting and Integration: Drive Electronics Already Included
  • Cost-Efficient OEM Drive for Medium and High Quantities
  • Force Generation up to 0.5 N
  • Self Locking at Rest
  • Velocity up to 100 mm/s
  • Fast Response: Full Stroke in
    <100 ms
  • True Linear Motor: No Rotary Conversion Losses
Two custom ultrasonic drives show the versatility and adaptability of the basic concept. The RodDrive principle allows basically an unlimited linear travel range (right, here with 50 mm slider length). Three miniaturized motors move a ring (left), e. g. for a fast settling of optical elements.
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Application Examples
  • Medical technology
  • Optomechanics: rotating filters, etc.
  • Consumer electronics
  • Miniature mechatronics
  • Micromanipulation
  • Micropositioning
  • Toys

PILine® OEM piezo motor compact drives are designed for the integration into miniaturized micromechanical systems and replace within those systems drive elements such as motor / spindle systems. Thereby the principle of the ultrasonicmotor allows significantly higher velocities. The very compact design and high push/pull and holding forces relative to the size of the drive are additional, fundamental advantages of piezo motors over classic drives.

The mechanical integration of OEM piezo drives in a positioning application is simple because the moving slider for load coupling and the piezo ceramic actuator are delivered already assembled and mounted as a unit on a PCB driver board. The piezo motor is driven via a TTL signal at a supply voltage of only 5 to 12 VDC.

Different versions are available. They move light objects fast and precisely, such as glass fibers, optical,micro- or electromechanical elements.

Advantages of PILine®
Compact Drives The OEM piezo drive features a novel, patented ultrasonic motor from PI. The extremely compact piezo motors reach velocities of up to 100 mm/s. The moving slider of the drive is preloaded against the ceramic actuator and thus creates a holding force at rest. The result is a very high position stability without the heat dissipation common with conventional linear motors. During operation, the oscillating piezo ceramic moves the slider along the length of the motor. There are no gears, leadscrews or other mechanical components to contribute play or backlash.

Simple Control
The high-frequency oscillations of the PILine® motors are created by drive electronics that can in turn be controlled by short pulses. The output frequency of the drive electronics self-adjusts to the resonant frequency of the motor ceramic. Therefore, no individual tuning is necessary.

Patented Technology
The products described in this document are in part protected by the following patents:
German Patent
No. 102004059429
International Patent
No. WO2006/027031A1

Related Information:
PILine® Ultrasonic Piezo Motors
OEM Motors, Technical Data
U-264 RodDrive OEM Piezomotor Direct Drive
Low Profile, High Speed, Easy Integration

© 1996-2014 PI (Physik Instrumente) GmbH & Co. KG. All rights reserved. PI - Moving the NanoWorld. ISO 9001. Specifications subject to change without notice.    Linear Stage PI USA Piezo