Linear actuator chicken door :)

[totalloser]

Oh, and pics were obviously early on- before electric fence and solar upgrade etc. I probably could find better or more recent pics- but I am occasionally quite lazy.

 

[JKlafehn]

Anyone have a link to a linear actuator I can use for a door?

 

[cavemanrich]

Anyone have a link to a linear actuator I can use for a door?

https://www.walmart.com/search/?query=linear actuator&typeahead=linear

There are different stroke lengths available.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,and

 

[JKlafehn]

https://www.walmart.com/search/?query=linear actuator&typeahead=linear

There are different stroke lengths available.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,and

Thank you!!!

 

[aart]

Is there a torque overload setting on these, in case a bird gets stuck?
Read another thread the other day about a bird being killed in a autodoor with a linear actuator....then this popped up, figured @cavemanrich would know.
Looks like @totalloser has flown the coop long ago.

 

[cavemanrich]

Is there a torque overload setting on these, in case a bird gets stuck?
Read another thread the other day about a bird being killed in a autodoor with a linear actuator....then this popped up, figured @cavemanrich would know.
Looks like @totalloser has flown the coop long ago.

I read about the specs, and does have a clutch. I'm sure specs are same for the other strike lengths, this is from 4 inch stroke.
Copy & paste.
and has a built-in clutch to prevent over-extension and over-compression.4" stroke length; 200 pound max lift weight;

If this can lift 200 lbs, it can also press 200 lbs. that is enough to decap a chicken, but chances of that happening are of course remote.
A buzzer could be connected to the electrical circuit, so when door starts to close, buzzer would scare chickens away from entrance.
If someone was making a pop door, and had concerns about their hand, or their child's' hand getting injured, the attachment at the door can be made from a light plastic to be a breakaway.
There are other ways to achieve, if there would be SAFETY CONCERNS. Have one end of actuator attached with dual action springs, to limit the amount of potential force. That would take some creative doing, and not everyone is up to such a task.
It would save someones fingers from getting hurt.

 

[jthornton]

Yea linear actuators only have end limit switches so they can cut a chicken in two. That's one of the main reasons I used a geared motor with paracord to raise and lower my doors. I let the door go past the opening so no one could get a grip on door and raise it up. Of course nothing could get near the door as it would be a shocking experience.

It would be simple to rig a linear actuator to lift a door but on the way down allow the door to float so as to have no down pressure.

JT