John Deere has been given a silver medal by Germany's influential Agritechnica machinery show for its systems which optimise performance in its large combine ranges.

It has optimised all the critical functional areas of the combine to significantly enhance overall system efficiency by using a 'lean drive' concept with innovative drive belts, which also reduces power requirements.

Further efficiency gains have been achieved in the engine, transmission, separation and ventilation systems and the straw chopper.

Overall, these led to a significant increase in harvesting capacity using the same engine power and with losses of less than 1%.