The other variant of the Supra is the 0012R, the 'R' standing for ramp as it is a truck designed for ramp haulage. Visually, the main difference between this truck and the 0012H is that it only has four axles, rather than the five used on the 0012H.
The company reports that industry perception suggests that should an underground haulage having grades of 1:8 or greater, be of a size which can accommodate a rigid frame truck, the lowest cost per tonne hauled measured in either t/hr or t-km/hr will be achieved with rigid trucks and is far superior to that expected from any other form of haulage.
Articulated underground haulage trucks traditionally offer the flexibility of smaller drive sizes as well as steeper gradients.
One factor which often clouds the general perception of underground haulage trucks is the nominated capacity.
It is also Caterpillar Elphinstone's belief that the industry is yet to receive the ultimate in underground haulage technology as newer mining methodologies create opportunities for enhanced haulage horizons.
GIA Industri in Sweden is today the owner of the Kiruna Electric truck technology for underground and has recently supplied a complete Electric haulage system, including two model K635E trucks and a 2,100 m trolley line system, to Navan Resources' new Aguas Tenidas mine in Spain.