When the world’s biggest combines go to work, it’s up to the grain. auto motor und sport shows the largest harvest workers and takes a look over the thresher edge.
Driving Report New Holland CR 10.90
This is how a combine harvester works
Fendt Ideal 9T
John Deere S790
Claas Lexion 780 Terra Trac
Case IH Axial Flow
They eat like grasshoppers through fields and cost more than a supercar: combine harvester. With over 600 bhp and huge grain tanks, they do the work that would otherwise take days, if not weeks. Especially when it comes to a record attempt. As in 2014, as in eight hours a team from New HollandWith a 653 hp CR10.90 and a 13.70 meter wide cutting attachment, it has drilled a total of 797.66 tons of wheat. As much as fits in 28 big pendants. Only 1.12 liters of diesel per harvested ton of wheat were consumed. In April 2017, the same company with the CR8.90 again made an entry in the Guinness Book of Records. The machine harvested a total of 439.73 tonnes of soybeans within eight hours on a Brazilian field. Reason enough to take a close look at the machines. Of course, the fact that the combine harvester no longer holds the track by hand, but autonomously to one or two centimeters, plays an important role.
Driving Report New Holland CR 10.90
There it stands, one of the largest combine harvesters in the world: the New Holland CR 10.90. Its mower measures 12.5 meters in width and cuts off 1,000 grain sheds every second. He can eat his way through five hectares of field every hour. We first climb the roof terrace of the New Holland CR 10.90, pay a visit to the 14,500-liter grain tank and the 16-liter six-cylinder common-rail diesel. It is big as a telephone booth, makes 653 hp, meets the emission standard Euro 6 and taps per hectare about 20 liters of diesel from the 1,200-liter tank.
In the cockpit, which according to New Holland harvest suite is called, is with 3.7 cubic meters about the size of a single-family home in Tokyo . It is glazed for the best views with 6.2 square meters of window space, air-conditioned and furnished with a fridge and heating and cooling leather seats. A stereo system allows the operator to pass the time. The driving takes over the New Holland CR 10.90, to 2.5 centimeters exactly.
70,000 euro caterpillar drive
Selbst geübte Mähdrescherfahrer empfehlen, die Höchstgeschwindigkeit von 30 km/h auch auf geteerten Straßen nie auszunutzen – schon wegen des hydraulisch gefederten Raupenlaufwerks vorn. Dieses allein kostet 70.000 Euro, drückt aber mit jeweils 1,4 Quadratmetern Auflagefläche nicht so heftig aufs Ackerland wie normale Reifen. Joystick nach vorn drücken, und der Mähdrescher bricht zur Feldarbeit auf. Das linke Pedal aktiviere die Differenzialsperre vorn, falls sich der CR mal festfahre; so informiert mich der Instruktor. Komme das Fahrzeug damit nicht frei, empfehle es sich, für die Bergung einen etwas umfangreicheren Bagger vorrätig zu haben. Knopfdruck, das Mähwerk rotiert los, die Erde bebt. Noch ein Knopfdruck, und der CR 10.90 frisst sie auf. Ganz allein. Über den 10,5 Zoll großen Touchscreen ließe sich das Tempo noch ändern oder die Schnittgröße des Strohs einstellen, das hinten aus dem Mähdrescher herausstürmt. Doch alles andere erledigt der CR 10.90 allein. Er misst dabei selbst die Feuchtigkeit des Ernteguts, um die Druschart zu optimieren.
For autonomous driving he uses the Intellisteer system, which has a correction signal optimized GPS and three yaw and three motion sensors. Each time they are harvested, they always guide them on exactly the same tracks in order to compact as little ground as possible with the 18-tonne New Holland CR 10.90.
With 4.5 km / h through the field
At 4.5 km / h, the New Holland CR 10.90 mows south, pulling the grain into a canal, then passing it on to two rotors that separate the grain from the stalks. New Holland informs that this gentle process ensures less than 0.2 percent grain breakage and highest straw quality. Meanwhile, the straw chopper taps 109 hp from the engine power. This is how the grain tank of New Holland fills upCR 10.90 hurry, as I can see through a small window behind me. As soon as a tractor hurries, with a trailer in the size of a container ship. I stop the combine and hit a button again. Now the ten-meter-long spout goes to the left, from which the grain is then pumped into the trailer, almost 100 kilos per second.
Fendt Ideal 9 with 17,100 liters of grain tank
The Fendt Ideal 9 is powered by a 647 hp and 15.2-liter MAN diesel engine and offers the longest rotor on the market. Whole 4.84 meters in length and 600 millimeters in diameter. An innovation for the combine harvester is the installation of a second return floor in the front area of the threshing unit. As a result, the preparation soil is already filled far ahead with crop. At the same time, the Fendt is ideal with the largest grain tankIt is currently available at the combine market. Its capacity is 17,100 liters. The emptying capacity is 210 liters per second. The PowerFlow cutting unit also allows a maximum working width of 12.20 meters. MADS sensors combined with a grain quality camera ensure that everything runs perfectly during the harvesting process.
John Deere S790
The up to 40 km / h fast and 625 hp John Deere S790 offers thanks to Dyno-Flo Plus up to 5.9 square meters screen area and up to 12.20 meters Schneidewerk. The 13.5-liter six-cylinder diesel engine sucks its fuel from a 1,250-liter tank. The grain tank in turn holds 14,100 liters and the Abtankgeschwindigkeit 135 liters per second. After 105 seconds, therefore, a complete tank is emptied. In collaboration with NASA began the first satellite-based steering system John Deerealready 20 years ago. Autonomous driving is ensured by the Starfire 6000 system with an accuracy of two centimeters. But what good is the best combine if nobody can or wants to drive it? Many businesses and contractors are currently complaining about the shortage of qualified harvesters. John Deere now offers the combine harvester simulator GoHarvest.
Claas Lexion 780 Terra Trac
With 13,500 liters of grain tank and emptying capacity of 130 liters per second, the 18.2-tonne Claas Lexion 780 Terra Trac also joins the line of the world’s largest combine harvesters. His 626 hp, which he gets from a 15.6-liter inline six-cylinder from Mercedes underlines his position.
Case IH Axial Flow
14,400 liters of grain tank and 159 liters per second of defrosting speed – values that make the Case IH Axial-Flow 9240 one of the very big of the combine harvesters. Propulsion is provided by a six-cylinder engine with 15.9 liters of displacement and 634 hp. The diesel tank holds 1,200 liters of fuel.