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Rotary Solutions

rotary stage air bearing close up

Rotary Stages and Rotary Spindles built with best-in-class air bearings and ball bearings, unique motor technology and high-performance encoder systems.

LAB's rotary stages and rotary spindles are equipped with specially developed ironless direct drives, which combine optimal precision and high dynamics. The dimensions are chosen to offer you the best integration in your application. Our air bearing technology combines maximum workload with high precision (error motion down to 20 nanometer) and wear-free movement.

The perfect solution for

  • Roundness measurements systems
  • Micro- and nano-tomography
  • Ultra-precision manufacturing
  • Semiconductor industry
  • Medical and research equipment
  • Indexing tables

Rotary Solutions

Rotary Stage RT075S

The most compact member of LAB’s RT-S series. The RT075S delivers all the precision and agility you’ve come to know from LAB, and captures this technology in a highly miniaturized design. In true spirit of its compact predecessor (RT100S) this new rotary stage is even lighter and more compact, but still has the same qualitative advantages as its bigger brother.


Rotary Stage RT100B

The RT100B ball bearing rotary stage has the exact same footprint as its air bearing counterpart (RT100S), excelling in superior error motion performance, high stiffness and high load-carrying capacity. Additional elements of excellence can be found in the aluminum body, steel shaft and customizable top plate.


Rotary Stage RT100S

A versatile high-precision air bearing rotary stage, perfectly employable in small measuring devices and as final Ɵ-axis on a multi-axis system. The lightweight and compact build serves as the ideal choice for high-dynamic and accurate positioning tasks in various applications. LAB’s RT100S: the embodiment of the highest precision in a small package!


Rotary Stage RT150B

The ball-bearing stage RT150B features a design for your precision rotary needs, with radial and axial error motions below 1 µm. It provides the optimal solution in case you are looking for a rotary stage with high load-carrying capacity in a compact design, without the need for a conditioned air supply. LAB’s RT150B serves as an ideal partner for your entry-level metrology applications where sub-micron accuracy is required.


Rotary Stage RT150S

This mid-range rotary stage combines excellent load carrying capacity with low error motion performance. The low height and large through hole make this rotary stage an all-round solution for all measuring and inspection tasks. This allrounder is your best choice as a versatile and top-class motorized air bearing stage.


Rotary Stage RT150U

This best-in-class, ultra-precision rotary stage excels in its ultra-low error motion (below 20 nm) and world-class motion performance. An uncompromised design fuses into an unrivalled precision and accuracy for this masterpiece of engineering. For ultimate performance, don’t look any further and select LAB’s RT150U.


Rotary Stage RT250S

For higher loads up to 80 kg, the RT250S completes the LAB RT-S series. This rotary stage matches the most stringent requirements with respect to radial and axial error motion, with an excellent tilt stiffness. This product excels by being one of the best stages in terms of load carrying capacity and stiffness for its footprint.


Rotary Stage RT500S

This robust heavy-duty rotary stage distinguishes itself from the competition by its direct drive integration, unseen in this class of size, and by its exceptionally low error motion. A high-resolution encoder system enables for an ultimately stable positioning and velocity tracking. Imagine a stage that takes the weight of a city car, and rotates this payload with an error motion below a thousandth of a human hair!