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Our latest rotary axis solution, the DXRH, 1 degree of freedom (DOF) mechanical bearing design, is characterised by exceptional accuracy.

The DXRH is characterised by its encoder system and unrivalled mechanical properties comparable to those of air bearing solutions – without the associated complexity. Supported by HEIDENHAIN best in class encoder and bearing technology and our toothless direct drive motor, the DXRH ensures precise performance without torque ripple.

Full compatibility with our standard interfaces enables seamless integration and performance upgrade without the need for redesign.


  • Bidirectional repeatability: ±0.25 arcsec
  • Position accuracy down to ±3 arcsec (w/o calibration)
  • Position stability: ±2,5 marcsec
  • Radial runout:  ±1 µm
  • Total axial error: ±2 µm”
bidirectional repeatability
Bidirectional repeatability
±0.25 arcsec
position accuracy
Position accuracy
down to ±3 arcsec (w/o calibration)
position stability density
Position stability
±2,5 marcsec

DXRH Rotary Axis

Here are the key features:

The DXRH offers continuous rotation for versatile positioning.

With 360,000 lines, it delivers precise feedback for accurate motion control.

Capable of handling payloads up to 12.5 kg, ensuring versatility for various applications.

Equipped with vacuum feed-through and purge for axis cleanliness, ideal for sensitive environments.

Featuring a 53 mm hollow shaft, it accommodates additional functionalities and accessories.

ISO Class 1 cleanroom compatibility ensures reliable performance in controlled environments.

Several options available, including modular external hard stop, wobble kit, wafer vacuum, and connector support, enhancing customization and flexibility.

Utilizing toothless motor technology, the DXRH ensures high-speed stability with zero cogging.


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