Dave - if this is actually a hobby shop and you don't have to actually comply with a lot of stuff, there is a very easy and cost effective way to make overhead cranes.
My home shop has a 1/2 ton covering 10 x 25' of the main work bay. Has been used (and abused) almost daily for last 39 years. It uses a "2000 lb." (cough, choke, yeah really>>?) ATV winch with a 2 part block. Power is a 12v deep cycle battery that tends to last over 10 years. Replaced original winch after 25 years when brake began to show wear. Charging only needed after several busy days or a couple of lighter use months. With 10' span my S6 12.5 bridge is good for a full ton, and that will happen when I build new trolley. My runway beams are very deep trusses that carry the entire roof and are good for 20 odd tons each, so not worried about them. My outer storage area there has a 14' bridge of same beam size and good for a half ton. I used a manual chain block for that one, and it gets used a LOT up to capacity. https://www.yalehoist.com/Catalogs ...NENT_-CRANE_BRIDGE_KITS_THRU_5_TON_MANUAL.pdf
When I built a storage shelter on farm to cover a pair of 40' sea cans I built runways to give me 20 x 40 floor area covered with S8 18.4 bridge. Similar trolley and winch to home shop and from a bunch of calcs we came up with a 600Kg rating. You can buy crane wheels from a few places, not cheap but that is NOT where to cheap out. Runways parallel to max deviation of + 1/8" / -0" (not hard to do). Trucks are about 3' long. My 12YO grandson can handle full capacity loads pulling the bridge and trolley by hand.
I simply will not have a work space without an overhead crane. My new on farm shop has a pair of 47' bridges and 5 ton trolleys and I will literally design and build the shop around these cranes. I should add that once you have worked with 2 bridges and especially 4 trolleys, you will be building 2 bridges for sure.
If you want to go this route, will be glad to take the detail stuff off line
My home shop has a 1/2 ton covering 10 x 25' of the main work bay. Has been used (and abused) almost daily for last 39 years. It uses a "2000 lb." (cough, choke, yeah really>>?) ATV winch with a 2 part block. Power is a 12v deep cycle battery that tends to last over 10 years. Replaced original winch after 25 years when brake began to show wear. Charging only needed after several busy days or a couple of lighter use months. With 10' span my S6 12.5 bridge is good for a full ton, and that will happen when I build new trolley. My runway beams are very deep trusses that carry the entire roof and are good for 20 odd tons each, so not worried about them. My outer storage area there has a 14' bridge of same beam size and good for a half ton. I used a manual chain block for that one, and it gets used a LOT up to capacity. https://www.yalehoist.com/Catalogs ...NENT_-CRANE_BRIDGE_KITS_THRU_5_TON_MANUAL.pdf
When I built a storage shelter on farm to cover a pair of 40' sea cans I built runways to give me 20 x 40 floor area covered with S8 18.4 bridge. Similar trolley and winch to home shop and from a bunch of calcs we came up with a 600Kg rating. You can buy crane wheels from a few places, not cheap but that is NOT where to cheap out. Runways parallel to max deviation of + 1/8" / -0" (not hard to do). Trucks are about 3' long. My 12YO grandson can handle full capacity loads pulling the bridge and trolley by hand.
I simply will not have a work space without an overhead crane. My new on farm shop has a pair of 47' bridges and 5 ton trolleys and I will literally design and build the shop around these cranes. I should add that once you have worked with 2 bridges and especially 4 trolleys, you will be building 2 bridges for sure.
If you want to go this route, will be glad to take the detail stuff off line
