John Deere 770

770

  • John Deere
  • Hay & Forage

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Key Features & Specs
  • Large drum cutting enables cutting of fields
  • Harvesting down or lodged crops
  • Advanced header-height control
  • Row scrapers and cleaners prevent crop buildup
  • Models 24.6 ft (7.5 m)
  • Width 10
  • Number of Rows 4-Large Drums and 2-Small Drums
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  • Intake fingers and gatherer drums for secure crop guidance

    After the fast-rotating blades cut the plant, the intake fingers push the plant into the gatherer drums that rotate in the same direction at low speeds. Every plant is pushed into the teeth of the gatherer drum. The special-designed shape of the teeth ensures that both small and big plants are conveyed in a secure way.

    In the machine, the plants are taken off the gatherer drum at the back of the drum by scrapers. Depending on the width of the header, they are forwarded to cross-feed drums or immediately fed into the angled feed drums in the middle of the machine.

    Intake fingers push every plant into the gatherer drumIntake fingers push every plant into the gatherer drum
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    Key feature:

    • Every plant is individually and securely pushed into the gatherer drum (Performance).
  • Fast-turning saw blades cut all kinds of crop
    Saw blades with changeable segmentsSaw blades with changeable segments
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    The saw blades of John Deere rotary crop headers cut quickly and thoroughly at a high speed of rotation. As the fast turning blades cut the full width, crops can be harvested regardless of the row spacing. Thanks to this row-independent harvesting technology, the field can be worked from any side, which is particularly important for down crop.

    The fast-turning saw blades allow crops with a lot of weeds to be harvested easily. Besides corn, a wide range of crops such as sorghum, whole crop silage, oilseed canola, pampas grass, and miscanthus can be harvested.

    Key features:

    • Fast-turning saw blades can cut in difficult harvesting conditions to give the operator increased uptime.
    • Headers can be used in various stemmed crops and there is no need for extra headers, which saves on the cost of operation.
  • Lengthwise feeding for optimal chopping quality
    Bundled, lengthwise feeding toward the feed rollsBundled, lengthwise feeding toward the feed rolls
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    Even feeding of the harvested crop bundled lengthwise to the chopper unit of the self-propelled forage harvester (SPFH) is crucial for an even cut. Only even, lengthwise feeding allows for the full use of the power installed on the SPFH.

     

    Key feature:

    • Bundling of lengthwise stalks is the basis for perfect cutting (Performance).

Revolution rating calculated with forage harvester at a standstill without load

Engine rpm 2,100 rpm
Header drive shaft (shift rod pulled out for slow speed) 405 rpm
Gathering drum Large
22 rpmSmall
47 rpm
Cutting blades for gathering drum Large
640 rpmSmall
1,190 rpm