Claas has announced a number of improvements to the Arion 600/500 series of tractors, including the introduction of Stage V engines.
Claas Harvest Centre product manager Shane Barrett said there was seven models in the series, ranging from 92 kilowatts (125 horsepower) up to 152kW (205hp).
"Power outputs remain unchanged, but tnow benefit from a six to 14 per cent improvement in the torque curve at lower revs," he said.
"Engine idling speed in Arion 600 models has been reduced to 650 revolutions per minute, delivering additional fuel savings."
Mr Barrett said the Stage V engines used a number of technologies to reduce emissions, including a cooled exhaust gas recirculation, diesel particulate filter and selective catalytic reduction catalytic converter.
"In the Arion 600 models, the components of the exhaust gas after treatment system have been further refined to reduce the amount of space it requires," he said.,
"The 600 series now shares the same smaller selective catalytic reduction catalyst mounted on the front right hand 'A' pillar as the 500 series, improving visibility."
Mr Barrett said the tractors were available with a choice of three operating systems, the basic Claas Information System, the intermediate Claas Information System Plus, or the advanced Claas Electronic On-Board Information System, known as CEBIS.
"CIS offers mechanical spool valves and while CIS+ has electronic spool valves, both systems incorporate the easy-to-use CIS terminal and a multi-function armrest with a four-way control lever," he said.
"The CIS+ is aimed at customers who want greater convenience and efficiency but do not need all the functionality of the CEBIS system.
"It provides the option of using the Cmatic continuously variable transmission without the CEBIS system."
Mr Barrett said the CEBIS system now incorporated and ISOBUS interface and the ability to link up to two cameras to the screen.