Strostkovy
Titanium
- Joined
- Oct 29, 2017
I was thinking it would be far more convenient to use steel pipe versus and I beam. The exterior is smoother, and it isn't difficult to have four angled rollers. The deflection isn't bad, assembly is easy, (though I have plate cutting ability, so maybe that helps) and twist of the section in long lengths is no big deal.
A 20' simply supported length of 8" schedule 80 pipe will only deflect 1/8" under 1000 pounds of force midspan. This seems pretty reasonable to me. If my interpretation of standards is correct, that would actually be around a 4000 pound rated gantry but I'm not pushing it.
I started looking at cranes because I wanted a free standing bridge crane to cover a 16' x 16' area to easily move around press castings and large hydraulic components into their final assemblies. There are many for sale but they look fairly wimpy and I'm not convinced they roll well under load (other than very expensive ones).
I have no employees and buckling/side loading/etc are easily solved for and overbuilt, so actual fabrication methods aren't really an issue. Just curious why I've never seen a pipe crane.
A 20' simply supported length of 8" schedule 80 pipe will only deflect 1/8" under 1000 pounds of force midspan. This seems pretty reasonable to me. If my interpretation of standards is correct, that would actually be around a 4000 pound rated gantry but I'm not pushing it.
I started looking at cranes because I wanted a free standing bridge crane to cover a 16' x 16' area to easily move around press castings and large hydraulic components into their final assemblies. There are many for sale but they look fairly wimpy and I'm not convinced they roll well under load (other than very expensive ones).
I have no employees and buckling/side loading/etc are easily solved for and overbuilt, so actual fabrication methods aren't really an issue. Just curious why I've never seen a pipe crane.