I need to have an actuator that has position control and be reletively small. The other mini actuators I found were not strong enough. This actuator is perfect except it does not seem to have the feedback control I need.
My question is, is there a way to easily modify these actuators so that I can use it as if it had feedback?
There's probably not any space left inside it, but you can always add something externally.
One possibility could be an incremental encoder on the rotating screw. For homing positions, the built-in limit switches should work and it will then have a certain amount of "clicks" per inch of travel, depending on the number of segments on the encoder.
Hard to be more precise, when all you give us are "relatively small", "strong enough", but nothing on stroke length, the intervals you need, the force you need or anything specific
Did you check Linaks
range of actuators? They're superior IMO, but I'm biased
You might find something that fits your purpose - with feedback.