A small stepper device to rotate back and forth gently

The person can not have full motion of their hands to rotate right and left.
He has a trachea in their neck and needs to insert a suction tube to clear the mucus.
This needs to be rotated slowly.
I would like to attach a device to make this rotation

I have a need to rotate a 1/8" small tube 90Degrees back and forth slowly.
is there a stepper motor or another device that can gently rotate.

Hello @BruceB and welcome to the RobotShop community,

Could you indicate an approximate speed? Either in revolutions per minute or degrees per second.

Do you have an idea of the force/torque the motor might need to rotate the tube?

The speed would be 1 revolution every 2 seconds.
Rotating 60degrees right stop and return to center and rotate left 60degrees.
The torque I can only describe as turning a pencil in your hands

Hi Bruce!

Well, since the torque requirements are very low and it doesn’t have to be extremely slow either, you have lots of options so I suggest you take a look at this comparison list:

You could even use a servo motor (which is easier to control).

For example:


That you could easily control with this