Actuonix Micro Linear Actuator, 20mm, 12V dc, 15mm/s

The Actuonix PQ12 series micro feedback actuator is designed to push or pull a load along its full stroke length. It features an internal potentiometer that can be used to provide position feedback. It comes with limit switches that will turn off power to

Can run with a DPDT switch, relay or brushed DC motor controller
Available in both 6v and 12v models.