I want to build an overhead hoist, 8’ long that pivots with a 1 ton chainfall on it. I doubt I’ll ever lift a full ton, mostly will use it for engines, lawn mowers, things like that, but I don’t care for it failing. I know there’s many here smarter than I, so hopefully they can tell me if what I have will work or not.
What I have,
4” 1/8” wall pipe 7’ long.
4 1/4” 1/8” wall pipe for the pivot, I plan on 2’ long.
8’ long 4x4” 1/4” web and wall thickness.
1/2” 2’x2’ plate for the base, I plan on three 1/2” anchors per side, 12 total, the concrete floor has a 16”deep, rebar enforced, 2’x2’ pillar to set this on.
So... where’s my weak spot and how do I fix it? Right now I’m thinking the main pipe is too thin, but I honestly don’t know!
Thanks!!