I am looking for a shipyard or large engineering site that has closed with 40 Metre or larger box beams on the cranes. Any thing over 20 Tonne SWL will be considered. I will use beams for another project and can inspect and recalculate stress etc required. Ideal would be a fairly light duty...
If a crane shaft has failed other things have to be checked.
1) Can the motor go from one speed to the other immediately on the controls.
2)Can the crane hit the stops
3)Can the crane be reveresed
4) Can cranes collide
Neilmo has the right idea and you can more or less work it back through the...
