Spread load calculation of tracked units

(Length of tracks + 1 m (stow distance)) x (Width of tracks + 0.5 m (stow distance)) = Used m2

Used m2 x allowable weight on deck / m2 = Allowable weight of unit.

Example:

Length of tracks: 4 m (A)

Width of both tracks outer ends: 3.3 m (J)

(4+1) x (3.3+0.5) = 19 m2 x 2 MT/m2 = 38 MT allowable weight

When or if a boom is attached, subtract half of the boom weight, due to boom will rest on deck.

These calculations apply when multiple excavators or steel tracked units are stowed together,

if a single unit, we may add allowable weight to it, in such a case please contact Port and Cargo Operation or Marine Operation Management.