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Wooden Version
I wonder what the deflection is on the center of, say, a 10' wide 6x6 supported from the floor with a suspended load of, say, an Oliver 20" Planer or 12" Jointer so say one ton.
There are some lighter and cheaper commercial gantry cranes around, from Northern Tool or Rand I think. If you had the room and the cash for them, the big ones are clearly the right answer--they roll; you could pick up your car if you wanted <g>. Pallets of plywood or a couple hundred BF of lumber steel-banded would be nothing. The engine hoists are, yes, unstable.
Or a Bobcat.
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In an ideal setup I need three overhead cranes ... and I see what I have been thinking about is very much in this tread! I need one to lift heavy objects into the "Hay Loft" storage area, One to handle unloading/loading trucks and trailers hauling mowers etc. in a coveredarea outside the shop and and another for smaller equipment,wood and sheet goods in the shop! Thanks to all for the pictures and thoughts!
Leo
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That is a great simple setup, any thoughts on the load capacity? Also how do you make the attachment to the machines, some kind of strapping and a spreader bar, chain, etc. Great solution.