Krone and Lemken have unexpectedly launched an autonomous tractor as part of their mightily named "Combined Powers" project.The cabless, four-wheel-steer implement carrier, described as a "process unit", has completed trials using 3m Lemken cultivators and drills, and a 4m mower and 9m rake from Krone.It has no gearbox, with the four-cylinder, 230hp MTU engine instead powering electric motors that drive the wheels (top speed 20kph) and pto shaft. Implements are carried on a conventional three-point linkage. But it opens up the option of running electrically powered attachments in the future, which are potentially simpler and more efficient than those with a mechanical pto or hydraulic system.
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