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Precision Rotary Tables with High Speed Direct Drive Motors for Test, Metrology, and Precision Automation
  • USA - English

A family of new high Precision, High Speed Rotary Tables with direct drive motors and frictionless air bearings provides superior positioning precision, high speed, and negligible wobble and eccentricity errors.


News provided by

Physik Instrumente (PI)

Sep 28, 2021, 15:55 ET

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Learn about PI’s family of high precision rotary tables
Learn about PI’s family of high precision rotary tables
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AUBURN, Mass., Sept. 28, 2021 /PRNewswire-PRWeb/ -- New Low-Profile Rotary Table Models
PI's A-630 series of low-profile rotary tables was recently extended by the new A-634 rotary stage with 150mm table diameter and the A-638 model with 350mm diameter. These high precision, high speed direct drive rotary tables are only 60mm tall and provide high speed to 3000 degrees/second. For transmitted light applications, the A-688 model with a large aperture is available.

Large Aperture, High Speed, High Precision, Maintenance-Free Performance
As all of PI's direct drive air bearing rotary tables, the A-688 high precision stage is also equipped with absolute measuring feedback encoders for closed loop position control. They provide resolution to 0.0015µrad (0.00003 arcsec), and flatness and eccentricity as low as 175nm and 300nm, respectively.

Direct Drive Torque Motors for High Acceleration, Velocity and Improved Performance
The rotary tables use low-cogging frameless and slotless torque motors to enable this excellent geometric performance. Different designs allow use in horizontal, vertical or any orientation. Air bearings guarantee a virtually unlimited service life with no wear, and zero required maintenance. As with all other PI linear air bearings and stages, the rotary tables are clean room compatible and requires no lubrication. For transmissive light applications, the A-688 direct drive rotary table with large aperture is available.

Closed-Loop Motion Controller
The highest motion performance is achieved with PI's A-800 series of EtherCat-based, high precision motion controllers, ideally suited for closed-loop control of the rotation tables. Advanced algorithms are available to deal with changing load conditions and to suppress external disturbances.

More information: Air Bearing Rotary Tables
Video: A-688 Direct Drive Air Bearing Rotary Table

Advantages of Rotary Air Bearings and Air Bearing Tables
Air-bearings have no mechanical elements such as rollers or slides, and deliver frictionless, non-contact motion, resulting in negligible reversal error, better flatness, and minimal wobble and eccentricity. All these are ideal prerequisites for applications such as inspection and metrology, calibration, and scanning of high-end parts (i.e., infrared and precision optics, turbine blades, shafts and bearings) in industries like aerospace, aircraft, automotive, semiconductors, and photonics.

Working with You
PI's in-house engineered solutions have enabled customers around the world to increase their productivity and technological advantage for 5 decades. With a large basis of proven motion technologies and methodologies, PI is in the position to quickly modify existing designs or provide a fully customized OEM solution to fit the exact requirements of your application from sensors and piezo transducers to microscope nano-focus units, fast photonics alignment systems to multi-axis automation sub-systems.

USA / Canada
http://www.pi-usa.us | [email protected] | (508) 832-3456

About PI
PI is a privately held company that designs and manufactures world-class precision motion and automation systems including air bearings, hexapods and piezo drives at locations in North America, Europe, and Asia. The company was founded 5 decades ago and today employs more than 1300 people worldwide. PI's customers are leaders in high-tech industries and research institutes in fields such as photonics, life-sciences, semiconductors, and aerospace.

Applications Blog | Videos | Twitter | LinkedIn

Media Contact

Low-profile, high precision rotary tables, PI (Physik Instrumente) LP - Auburn, MA, (508) 832-3456, [email protected]

SOURCE Physik Instrumente (PI)

Related Links

http://www.pi-usa.us/

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