abrt rotaryAerotech’s ABRT series rotary air-bearing stages provide superior angular positioning, velocity stability and error motion performance along with impressive payload capacity and outstanding radial and axial stiffness. The ABRT is designed to meet the exacting requirements of DVD mastering, wafer inspection, high precision metrology applications, X-ray diffraction systems, optical inspection and fabrication, and MEMS/nanotechnology device fabrication.

  • High torque output, direct-drive, slotless, brushless servomotor
  • Zero-cogging motor for outstanding velocity stability
  • Outstanding error motion and wobble performance
Model Aperture Maximum Speed Accuracy Maximum Load Aditional information
ABRT Up to 50 mm Up to 1200 rpm ±2 arc sec Up to 69 kg View source
ABRT-400  Up to 50 mm Up to 1200 rpm Up to 0.12 arc sec Up to 200 kg View source


Superior Mechanical Design

The ABRT design features large air-bearing surfaces and innovative preloading for high stiffness and load capacity, producing not only excellent axial and radial error motions, but outstanding tilt error motion, as well. The resultant performance is significantly better than other rotary air-bearing tables and spindles, greatly benefiting applications requiring exceptional planar performance. Furthermore, this stage family provides a clear aperture that can be used for product feed-through, laser beam delivery, cable clearance or application-specific requirements.

Brushless Direct-Drive

To maximize positioning performance, the ABRT series utilizes optimized versions of Aerotech’s S-series slotless, brushless motor. The motor uses an advanced magnetic circuit design to produce high torque output with minimal heat generation. The slotless design is inherently zero-cogging and torque-ripple-free. This makes ABRT stages ideal for applications requiring smooth scan velocities at low or high speeds.

Custom Designs

Custom versions of the ABRT are available to satisfy rate table and high precision inertial guidance test-stand applications. Other features, such as slip rings and rotary unions, are available.

Flexible Configurations

Aerotech manufactures a wide range of servo amplifiers and advanced controllers to provide a complete, integrated package.

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