
Piezo 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 precision and compactness of a piezo rotation stage.
2) Lifetime and speed comparable to direct-drive electromagnetic motors.
Enjoy!
Only 1 - 2 weeks lead time for most products.
Piezo rotation stages with built-in encoder
Control: Closed loop
Height: 8.9 ... 34 mm
Rotor diameter: 27 ... 65 mm
Mass: 25 ... 450 g
Resolution: 109 ... 3 µrad (6250 ... 170 µ°)
Rotation range: > 360º (unlimited)
Max. speed: 1080 °/s
Driving torque: 9.5 ... 90 mNm*
Load capacity: 0.1 ... 5 kg
Lifetime: > 1000 km / typ. 10 mill. rev.
Vacuum compatibility? Optional
*Need more power? We offer special high-torque variants. Inquire to learn more.
Fast or slow - Everything is possible. Video shows actual speeds.
Select your ultrasonic rotation stage
Encoder resolution
Rotor diameter
Aperture
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Additional info
Dimensions: 50 x 46 x 21 mm
Load capacity: 1 g
Lifetime: > 10 million rev.
HV / UHV vacuum - optional ⓘ
Pricing

Stages - Click to zoom
Please contact us for a formal quote and volume discounts (QTY ≥ 10). Prices are indicative and subject to change without notice.
HV = High Vacuum UHV = Ultra High Vacuum
Prices shown are in Euros (€). We supply and ship globally. Contact us for international quotes or orders.
Applied industries (examples)
Technical details


Large volumes or custom designs? Explore our OEM solutions
Compact, precise & fast
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No loss of accuracy over time
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Maintenance free
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Non-magnetic & vacuum-compatible versions
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Noiseless, direct-drive
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Manually overridable without affecting lifetime
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Low & safe voltage (<48V)
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Capable of slow and constant scanning speeds
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One-to-one interchangeability with other stage brands
Compact & precise rotation stage | XRT-U
The XRT-U is a compact high-precision 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 piezo 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!
Frequently asked questions
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