Miniature rotation stages

Ultrasonic rotation stages | XRT-U

Compact, fast, precise & durable

This is the XRT-U series. These miniature rotation stages are driven by an ultrasonic piezo motor, offering you the best of both worlds:

1) The lifetime and speed of an electromagnetic motor.
2) The precision and compactness of a piezo stage.


Only 1 - 2 weeks lead time for most products.

Miniature rotation stages

Height:21 ... 34 mm
Rotor diameter:32 ... 65 mm
Mass:82 ... 450 g
Resolution:109 ... 3 µrad (6250 ... 170 µ°)
Max. speed:720 °/s
Load capacity:0.5 ... 5 kg
Lifetime:> 1000 km / typ. 10 mill. rev.
(U)HV compatibility?Optional
Non-magnetic?Optional. No magnetic generation by default.

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Precision rotation stages

Our rotation stages can easily be combined into multi-axis systems

Select your ultrasonic rotation stage

Encoder resolution

Rotor diameter



Additional info

Dimensions: 50 x 46 x 21 mm

Load capacity: 1 g
Lifetime: > 10 million rev.

HV / UHV vacuum - optional ⓘ

Non magnetic - optional ⓘ

Product code:

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Buy evaluation kit

Prices depend on precision level, diameter and optional features.
Most rotation stages cost between $1000 and $1600 per axis.
Most controllers between $800 (single-axis) and $2600 (multi-axis benchtop model).
XYZ setup including controller starts at $6500.
Lead time just 1 - 2 weeks for most products.

Piezo rotation stage

Large volumes or custom designs? Explore our OEM solutions


 Compact, precise & fast

  • No loss of accuracy over time

  • Maintenance free

  • Non-magnetic & vacuum-compatible versions

  • Noiseless, direct-drive

  • Manually overridable without affecting lifetime

  • Low & safe voltage (<48V)

  • Capable of slow and constant scanning speeds

  • One-to-one interchangeability with other stage brands

Technical details

Product videos

Compact & precise rotation stage | XRT-U

The XRT-U is a compact and very precise rotation stage driven by an ultrasonic piezo motor. With the XRT-U, you can achieve error motion values close to an air bearing rotary stage, but in a smaller volume and for a lower price.

Compared to other piezo motor technologies, an ultrasonic piezo motor ensures you a non-degrading and vibration-free precision without generating any undesired dither motion during standstill. This makes the XRT-U a state-of-the-art rotation stage for applications such as micro-CT scanners, metrology applications and vacuum and non-magnetic applications, such as electron microscopy.

Not familiar with ultrasonic piezo technology? Have a look at our evaluation kits, the perfect way to experiment with our products!

Non-magnetic rotary stages

All of our rotary & linear stages are available as non-magnetic versions. But what does this mean exactly?

1. Xeryon stages do not generate a magnetic field, thanks to the absence of copper windings or magnets.

2. Xeryon stages can be made without any ferromagnetic materials, making them usable in magnetic fields up to 10T  ('Full non-magnetic' option).

For fluctuating magnetic fields, we offer reinforced PEEK plates in order to minimize unwanted eddy current formation.

For more information on non-magnetic stages, do not hesitate to contact us.

Frequently asked questions

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