Stroke 75mm 20N 3 Inch Mini Linear Actuator 12V Force 4.5lbs Electric Linear Motion Actuators High Speed 1.2"/sec for Robotics,Home Automation with Mounting Brackets

These work great. I used these as part of a dust collection system, to open/close blast gates. Worked great

Works as advertised

Functioned perfectly for my custom designed Bambu Lab X1C remote controlled vent system. Yes it was a crazy idea but got stuck in my head and I worked on it until I made it a reality! PLUS it was a fun and challenging project!

Mostly work as their supposed to but very slow. I got the 1 inch version and it takes 10 seconds to open. Had to time it to program a puzzle box. Way slower then i thought it would be. But works fine for what it does

It literally fell apart in under 24 hours with possibly two cycles opening a door with no load. The old actuator on my chicken door finally died so I got this one because I don't need a 200 lb actuator to swing open a door on hinges. Well it literally fell apart the next day when I went out to check my coop after finally welding all new brackets and setting it up. It literally pulled itself apart which I don't understand how because there is very little load pulling the door open and once the door is open there's no load on at all. Maybe I got a bad one, maybe it's just junk, either way keep that in mind

Ok

This is a nice unit. The movable shaft is tight, it moves quickly, and is quite strong.

Arrived and didn't extend or retract unless you applied pressure on the frame of the actuator, and only sometimes would it work. So.. unusable