Rolla’s main product is its uncontested leadership in marine technology. This gets translated into the Rolla physical product, which is in house production of:
Fully-submerged propellers – manufactured in NibrAl from 28″ up to 75″ diameter with a power range from 600 hp up to 4000 hp. Surface piercing propellers – manufactured in – NibrAl from 28″ up to 65″ diameter, with a power range from 600 hp up to 5500 hp. – Stainless Steel from 16″ up to 32.5″ diameter with a power range from 250 hp up to 1400 hp.