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

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Discussion Overview

The discussion centers on the search for small, non-magnetic motors capable of operating at a temperature of 4 Kelvin. Participants explore potential manufacturers and specific product types, particularly focusing on piezoelectric motors and actuators suitable for low-temperature applications.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about companies that produce small, non-magnetic motors that function at 4 Kelvin, referencing a specific product as an example.
  • Another participant suggests searching for Linear Piezo Actuators, noting that there are many results available, but emphasizes the need for a motor rather than just an actuator.
  • A participant mentions that while several manufacturers produce piezoelectric motors, most do not guarantee functionality at low temperatures, highlighting the attocube products as a potential option but expressing concerns about reliability in step size at low temperatures.
  • It is noted that adding an encoder for feedback may be necessary to ensure reliability in operation at low temperatures.

Areas of Agreement / Disagreement

Participants generally agree on the need for a motor that operates at low temperatures, but there is no consensus on specific products or manufacturers that meet these criteria. Concerns about reliability and functionality at 4 Kelvin remain unresolved.

Contextual Notes

Participants express uncertainty regarding the performance of available products at low temperatures and the need for additional components, such as encoders, to ensure reliable operation.

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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