Screw another eye hook into the beam right next to the first.
Diy i beam hoist.
According to the chart a s8 x 18 4 beam should work.
22 x45 x3 4 and 24 x48 x1 4 four 3 8 eye bolts four 48 long 3 8 chain eight 3 8 quick links two 7 16 quick links 12 3 8 x2 1 2 bolts with washers and nuts.
This is a very portable less than 50 lbs diy hoist that lets one man lift and work a load of up to a ton.
I am assuming the chart has a safety factor built in.
Material handling products.
Design and construction of a portable gantry hoist diy crane plans able homemade diy crane plans able homemade beam trolley i system ultimation industries homemade beam p with trolley homemadetools.
Hoists accessories.
Attach a pulley to it by sliding the pulley s hook into the eye.
Screw an eye hook into the beam where you made the mark.
Materials and tools an electric hoist 1 2 galvanized steel pipe two 1 1 2 tee four 1 1 2 floor flange four 2 x4 96 studs two plywood.
Tie one end of the rope to this eye hook.
It cost 25 and took two hours to build.
The hoist i am doing needs to lift 1000 and the span is 19.
Fixed height gantry cranes first of all are almost exactly what they sound like.
Pulling lifting.
Less expensive to build or purchase a diy kit.
The uprights legs will be stationary mounted to the floor and one side of the i beam at the top of the leg will also be mounted to the building.
To be more clear the beams are placed at a fixed height and are not adjustable at all.
I will research this some more.
Beam trolleys unistrut genuine p2950 eg 4 wheel trolley assembly for use with p1000 p1001 p5000 p5001 p5500 p5501 and all 1 5 8 or taller strut channel.
It cost 25 and took two hours to build.