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Aerotech ANT-20G Goniometers

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Aerotech ANT-20G Goniometers

Aerotech ANT-20G Goniometers

A significant breakthrough in the high-accuracy angular alignment of components



Aerotech's ANT20G goniometers are designed for high-speed, ultra-precise positioning applications such as the angular alignment of components. This unique design utilises our best-in-class direct-drive noncontact motor technology and provides an industry-leading positioning speed of up to 150 degrees per second.



  • Noncontact, non-cogging, frictionless direct-drive for zero backlash or hysteresis
  • High speed (150 degrees/s)
  • High resolution (0.05 arc sec)
  • Excellent in-position stability
  • Large 20 degree rotation angle
  • Orthogonal mounting of two cradles provides rotation about the same point
  • No maintenance
  • Compact design

High-precision bearings, direct on-axis encoder feedback and noncontact and noncogging direct-drive technology ensure the highest level of performance and make excellent repeatability and in-position stability a reality. The goniometer cradles can be mounted orthogonally to provide pitch and roll about the same point in space. Combining this with a rotary stage under the orthogonal assembly adds a third rotation axis (pitch, roll, yaw) through the same point.


The critical elements of the ANT-20G goniometers, as with all other ANT series nanopositioners, were selected to operate in a 24/7 manufacturing environment. Unlike worm- or piezo-driven goniometers, the ANT-20G series will not require periodic adjustment or maintenance. This will ensure many years of trouble-free operation. The ANT-20G cradles are available in four sizes.


For further information please contact us or download the datasheet.


     ANT-20G datasheet                                                       Read more on Aerotech's website