Local farm store has em. I googled "weld gate hinge" and came up with the photo. I think the ones I have weigh a bit less than the 11 pounds of the one in the photo.
I have used them in the past on weighty iron gates that I make for lectric openers.
That beast has a 1-1/4" hinge pin in it...I'm thinking it'd be bullet proof for sure.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist