Ok actually if you were to install a 7 ton hoist on it and loaded it all the way out to the end of the boom the crane would have still be safe and stable I built this for a maintenance facility that repaired vehicles for the US Army so the rating had to be graded according to Government standards
the bottom bearings
the crane leg 18" sch 160 pipe
the bottom bearings before assembly into the outer shell
top bearings on the 3 1/2" top pivot shaft
crane leg machined, fabricated and ready for paint
Home made carbon brush swivel for 3 ph with ground 3/8 by 1 1/2" brushes
Anchor bolt assembly for mounting of the crane the pit was dug 6 ft deep 10 feet wide by 10 feet long
crane boom ready for paint
installed and ready for use
Last edited by Frank S; 11-06-2019 at 07:20 PM.
No Philip, I designed it did the machining and welding, prepared the civil and structural analysis report then hand walked it through the department of projects and planning at Camp Arifjan Kuwait to be installed in the civilian maintenance facility. I had a few of my guys doing much of the grunt work assisting in handling sand blasting and painting plus they did the excavation, my hands don't fit jack hammers and shovels from the proposal of the contract to the testing and completion and payment took a few months. I suspect my being a member of the Kuwait society of engineers at the time, and being an American had a lot to do with getting the contract, but so did my contract to construct a set of prestressed concrete bridge beam forms we made and sent to Afghanistan.
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