John Deere 9000 Series and Liebherr V12

John Deere 9000 Series and Liebherr V12. Last August John Deere unveiled its awaited 9000 Series of self propelled forage harvesters. Brand new design, two different kernel processors, the latest version of the HarvestLab system for crop analysis, and an exceptional premiere under the hoods of three of the four new models (9700, 9800 and 9900): the V12 Liebherr D9512, a 24.2 liters, Tier 4 Final/Stage V compliant engine, delivering 566, 640 and 713,2 kW at 1800 rpm in the three available power ratings.

DIESEL OF THE YEAR 2017. COLMAR FACTORY INAUGURATION

John Deere 9000 Series and Liebherr V12 to riduce fuel consumption

A choice that was led by a clear focus on machine performance in terms of more throughput and less fuel consumption while providing maximum uptime and low cost of operation. The key of the Liebherr D9512 is the ability to provide lower engine rpm at higher harvesting component speeds, ensuring high power density and great fuel efficiency, constant maximum power down to lower engine rpm and a torque curve designed for forage harvesting applications. In numerical terms, this means that the broad maximum power range of the John Deere 9000 Series Liebherr V12 engine cuts off the less-efficient rpm area above 1800 rpm, while the rising torque curve down to 1300 rpm enables efficient operation of the machine in the lower rpm range. The global efficiency of this solution is also ensured by the fact that all machine component speeds are re-worked and laid out for best function in the 1400 to 1800 engine rpm range, a choice that also leads to better fuel efficiency with an optimum range from 1250 to 1600 rpm, where the engine has its lowest specific fuel consumption (g/kWh).

FROM BULLE TO DEER’S HARVESTERS. THE AGREEMENT

Variable and standard header drive

John Deere 9000 Series and Liebherr V12. One of the core technologies of the 9000 Series is the header drive, which is provided in the variable version as standard. The header speed is automatically synchronized with the feeding speed and length of chop through a hydrostatic IVT drive system, providing a smooth crop transfer from the header into the machine without blocking or disrupting material transition. A dual header drive complements the benefits of the variable header drive. While the variable header drive automatically synchronizes the pickup auger and harvester feeding speed, the dual header drive with its individual hydraulic drive of the pickup tines is speed matched with vehicle speed to ensure clean crop picking in changing conditions and windows.

Let discover more about John Deere 9000 Series and Liebherr V12 on the paper version of DIESEL International, in distribution soon at Ecomondo – Key Energy Rimini, Eima International Bologna and Bauma China Shanghai.