Overhead cranes

We are interested in purchasing 2 nos overhead cranes of 3 tons capacity.1 Span between crane rails 13.340m
2 Height from floor to top of crane rail 6.5m
3 Clearance between crane rail and tie of roof truss ~1m
4 Crane capacity required 3 tons
5 Max operation time 4 – 5 hours per day
6 Traveling length (under cover) 42.0m