The ITB 501 is a special purpose vessel with a capacity of 2000 tons.

The ITB 501 is equipped with a very large high capacity stern ramp and a concrete deck for the carriage of heavy equipment and deck cargos.

The ITB 501 has special dropping towers that are used in the raising and lowering of the sterm ramp. This feature allows for the loading of extra wide equipment and logs.

ITB 501 can be used for a variety of tasks from carriage of aggregates to difficult locations, or heavy machinery needing a large ramp for offloading.