U-622 PILine® Rotation Stage

Miniature Stage with Ultrasonic Piezomotor

Extremely space-saving: Edge length only 20 mm, height 10 mm
Positions small loads quickly and with precision: Velocity to 720 °/s, minimum incremental motion to 525 µrad
Unlimited rotation range >360°
Drive torque 5 mNm
Self-locking when switched off: Saves energy and reduces generation of heat
Light and low noise

Precision-class rotation stage

PILine® stages are particularly suitable for applications that require fast precision positioning. When switched off, the self-locking drive holds the position of the stage mechanically stable. Energy consumption and heat generation is therefore considerably reduced. Applications with a low duty cycle that are battery-powered or heat-sensitive benefit from these characteristics. The position of the axis is measured by an encoder and an optical reference switch allows reliable repeatable motion. The piezomotor drive principle and its electrical operation is inexpensive and can be customized.

PILine® ultrasonic piezomotor

An integral part of a PILine® ultrasonic piezomotor is a piezo actuator that is preloaded against a movable, guided runner via a coupling element. The piezoceramic actuator is excited to ultrasonic oscillation by a high-frequency AC voltage between 100 and 200 kHz. Deformation of the actuator leads to periodic diagonal motion of the coupling element relative to the runner. The feed created is a few nanometers per cycle; the high frequencies lead to the high velocities. Preloading the piezoceramic actuator against the runner ensures self-locking of the drive when at rest and switched off.

Direct position measurement with incremental encoder

Noncontact optical encoders measure the actual position directly at the motion platform with the greatest accuracy so that nonlinearity, mechanical play or elastic deformation have no influence on position measuring.

Valid patents

US patent no. 6,765,335B2

European patent no. 1267425B1

Fields of application

Micromanipulation, automation, biotechnology, sample manipulation, sample positioning, applications with limited space, vacuum applications to 10-6 hPa (optional)

Specifications

pdf
pdf

Datasheet U-622

2016-04-08
2016-04-08
pdf - 788 KB
pdf - 784 KB

Drawings / Images

U-624, U-628 an U-622 PILine® rotation stages
U-622.03, dimensions in mm

Downloads

Datasheet

pdf
pdf

Datasheet U-622

2016-04-08
2016-04-08
pdf - 788 KB
pdf - 784 KB

Documentation

pdf

Short Instructions MP121EK

M-66x, M-68x, U-521, U-62x, U-651 PILine® Stages
4.3.0 2017-06-23
pdf - 709 KB
pdf
pdf

User Manual MP143

U-622 PILine® Miniature Rotation Stage
2015-08-18
2015-08-18
pdf - 737 KB
pdf - 705 KB

3-D Models

zip

U-622.03 STEP

zip - 988 KB