My brother and I built one in his pole barn. The one end is attached to one of the wall poles with plates welded to support the end that works like a hinge. The cross I beam we welded a pipe thru the center web on the end that located between the wall plates and simply dropped a rod thru to work as the pivot. The other end of the cross I beam we made a standard style gantry leg on wheels that will pivot under the beam. Swing the ibeam out from the wall and pivot the support leg at a 90 to the beam and used a power winch to pull my motors. The abilty to slide the winch on the trolley and swing the whole setup allowed for unlimited positioning. Raised the motor up, swing the whole thing towards the wall. Boat was on jackstands. When done, swing the ibeam to the wall, pivot the support leg so it's parallel to the wall and chain it in place. Only takes up 6" of floor space for approx 4 along the wall (the length of the support base frame). This design doesn't put any lateral force on the wall post, other than the weight of the beam and motor, straight down.
Perfect for where you don't want it taking up floor space when not in use. Mounted the beam on the pole so it just cleared the bottom of the trusses.

+1...good old bay crane. Keep an eye out for one that came out of an old building being demolished. I am planing on putting one in a Metal Building on our place in Tuscaloosa, Alabama. My cousin is into collecting Military Vehicles and my brother and I do old cars and boats. I have a line on a building that spans 30' and has 12-6" bays/rigid frame spacing...15,000 sq. ft.. We can get it for $30K delivered out of Birmingham.The price includes an old 25 ton P & H Bay Crane. When we get that thing up my cousin will be lifting up 2.5 ton troop transporters just to rotate the tires LOL!!

Sometimes you can get good deals at US Army Auctions in Anniston, Alabama and elsewhere.

https://www.dispositionservices.dla....anniston.shtml

Worth a look.

Give me a Call or Email me some photos of the shop. [email protected] Mike J 724*344*8429 I own a overhead hoist company

I have a few 2 ton Jib crane for sale currently they are used and in great shape.

Where are you from?

What is the reach on the jib cranes you have . pictures?..I may be interested in one

Most are 10' under hook height and 10' reach. 1 of them is 12' x12' reach.

I am in NW Indiana. My shop has yet to be built. I am planning to start taking my old one down in the next 2 weeks. The new shop will be done by Nov. 1st. At least the outside will be. But if I go with a jib Crane and anchor the base in the floor as opposed to the wall, that will be done before the building goes up.

What are you looking to get out of one? What is the capacity?