photos 20170709. A massive Mammoet self-propelled modular transport (with three 6 axle line modules) supports the new Wilkinson Eyre-designed Eaton Centre pedestrian bridge as it is fastened in place. July 10, 2017 Vik The Mammoet SPMT is capable of hydraulic self-loading, tilting and road camber leveling. Each axle (two per axle line) is entirely independent allowing for 360 degrees of rotation and axle comensation which keeps the trailer level at all times. These modules can be hooked into a train or up to five trailers wide.