Hydraulic modular transporter
Hydraulic modular trailer, SPMT are the heavy equipment transporters for moving machinery which is too large to transport on the road. Machinery movers are made up of multi axles, hydraulic system. Some heavy haul trailers might be towed by tractor units, or they may have independent wheels. A SPMT (self-propelled modular transporter) can even be used to transport more than 5000 tons of cargo.