Small non-magnetic motors that work at temperature of 4 Kelvin

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SUMMARY

Small non-magnetic motors capable of operating at 4 Kelvin are essential for specific applications requiring precise linear displacements. The discussion highlights the attocube ANPx341 as a viable option, although concerns regarding its step size reliability at low temperatures necessitate the addition of an encoder for feedback. Users are encouraged to explore Linear Piezo Actuators, with manufacturers like PI and piezomotor.se noted for their offerings, though not all guarantee low-temperature functionality. The need for a motor rather than just an actuator is emphasized for achieving approximately 2cm linear displacements at 4K.

PREREQUISITES
  • Understanding of low-temperature physics and its implications on motor performance
  • Familiarity with piezoelectric motors and actuators
  • Knowledge of encoder systems for feedback in motor applications
  • Basic principles of linear displacement mechanisms
NEXT STEPS
  • Research the specifications and performance of attocube ANPx341 at low temperatures
  • Investigate the capabilities of PI and piezomotor.se piezoelectric motors for low-temperature applications
  • Learn about encoder integration for feedback in low-temperature motor systems
  • Explore alternative manufacturers of small non-magnetic motors suitable for 4K operation
USEFUL FOR

Engineers, researchers, and developers working in cryogenics, precision instrumentation, and applications requiring low-temperature motor solutions.

vst98
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Does somebody knows which companies produce small (approx. matchbox-sized) motors that can work at temperature of 4 Kelvin and are nonmagnetic ?
For example like this one:
http://www.attocube.com/nanoPOSITIONING/ANPx341/ANPx341.html
 
Last edited by a moderator:
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vst98 said:
Does somebody knows which companies produce small (approx. matchbox-sized) motors that can work at temperature of 4 Kelvin and are nonmagnetic ?
For example like this one:
http://www.attocube.com/nanoPOSITIONING/ANPx341/ANPx341.html

I did a google search on Linear Piezo Actuator, and got lots of hits. Maybe try that search?
 
Last edited by a moderator:
berkeman said:
I did a google search on Linear Piezo Actuator, and got lots of hits. Maybe try that search?

There are maybe lots of companies producing just an actuators, but I need a motor that works at 4K.

Using only an actuator will hardly work for my application, I need linear displacements around ~2cm at 4K. So, (piezo actuator) motor would be much better solution.
 
Last edited:
There are several manufacturers of piezoelectric motors (PI, piezomotor.se etc), but most will not guarantee that they work at low temperature.

The attocubes seem to work, but I've heard reports that the step size at low T is not reliable. So you should add an encoder for feedback.
 

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