are automatic doors predator proof?

[l'abeille]

I'm looking at the McMurray coop controller. Has anyone has a predator attack while using this door? Did it keep the flock safe or not?

Edited to add: we have raccoons and skunks in the area.

 

[mons02035]

I do not have this particular door however after looking at it, I have an automatic door that functions the same exact way. NO, this will not stop a raccoon. The door is only held closed by gravity, there is nothing to lock it down. Also, if just a few shavings or other litter get under the door it will not close all the way allowing the raccoon to easily open the door. The door also looks like flimsy plexi glass. They make doors that function with gears. That is the door you need to protect your flock.

 

[Dogfish]

Add a gravity lock to it like mine. Easy add on, takes about $10, and a little brain power to figure it out.
http://s137.photobucket.com/albums/q233/mesoas/Chickens/?action=view&current=0401000714.mp4