BiG X 700 | 770 | 850 | 1100

The ultra-strong class

  • Modern, ergonomic design
  • MAN engines with up to 1,110 hp certified output
  • 6 intake rollers for boosted reliability and a top quality chop
  • Universal MaxFlow chopping drums: 20, 28 or 36 blades
  • Biogas chopping drums: 40 or 48 blades
  • KRONE VariStream: spring-loaded drum floor and accelerator backplate for a continuous crop flow
  • KRONE StreamControl: crop stream adjusted via accelerator backplate
  • EasyCollect 1053: Higher efficiency from wider widths
    14 rows of maize in one pass

  • Quality six times over

    • 6 pre-compression rollers for a top quality chop
    • Hydraulic drive:
      LOC steplessly adjustable from cab,
      adjusts automatically with AutoScan
    • Maximum protection against foreign objects:
      long path from metal detector to chopping drum
      metal detection across entire chamber width

    Constant, safe and convenient: Six pre-compression rollers and an 820 mm gap between the leading roller with metal detector and the rearmost roller not only enhance pre-compression but also protect the blades better against metal objects, even at high-speed intake. The hydraulic drive shaft automatically adjusts the LOC in line with the maturity of the crop, which is detected by the KRONE AutoScan sensor. If the engine speed drops below 1,200 rpm as the load increases, the header and intake system are stopped automatically while the chopping drum continues to turn – because blockages caused by low speeds cost time and money.

  • Text

    The universal chopping drum

    • For grass, pre-wilted material, whole crop silage and maize
    • Chopping drums with 20, 28 or 36 blades
    • Plenty of carrying space under the blade carriers: high throughput and smoother running even on uneven swaths
    • Blades quick and easy to insert and remove

    20-blade cylinder: This is the perfect cylinder for long LOCs, as called for in some countries.

    28-blade cylinder: This cylinder is standard specification and cuts grass to the right length even with half this number of blades.

    36-blade cylinder: Boosting throughputs and reducing fuel consumption, this 36-blade drum soon pays for itself.

    More space for more crop: The blade carriers are arranged and designed to allow plenty of space under the blades. This extra carrying space means higher throughputs and smoother running, particularly in grass.

    The special drum for short LOCs

    • The Biogas drum has 40 chevron-style blades and the Super-Biogas drum has 48
    • High cutting frequency
    • High inertia
    • Fewer overlengths
    • High gas yields

    Higher output, lower costs: Working with short LOCs, the KRONE Blade Biogas drum boosts throughputs by almost 25% over the 28-blade standard drum. What’s more, fuel consumption drops by up to 16% per tonne of chopped crop.

    40-blade drum: With its higher throughputs and lower fuel consumption per tonne of chopped maize, the 40-blade Biogas cylinder pays for itself in no time. The short stalks increase the efficiency of the biogas fermenter. With the higher gas yield per m³ of crop, less acreage is needed for biogas production.

    48-blade drum: The Super Biogas drum with 48 blades is specially designed to meet the needs of modern biogas plants. Delivering a 20% higher cutting frequency than the 40-blade drum and a theoretical LOC ranging from just 2 to 12 mm, this Biogas drum produces an even shorter chop, boosting gas yields and throughput at the biogas plant even further and reducing fuel consumption per tonne of crop with the same LOC.

Two systems for your success

  • Perfect kernel treatment
  • Huge diameter roller: 250 mm
  • Optional high-performance disc conditioner for BiG X 600, 700, 770, 850 and 1100 with a 2.5 x larger friction surface.
  • Roll gap adjusted conveniently from the cab
  • Perfect treatment: the right teeth for your corn

KRONE corn conditioner cracks every kernel: The 250 mm diameter rollers have a larger friction surface area than the smaller diameter toothed rollers and can be operated with a larger roll gap for greater efficiency and fuel economy and better long stalk conditioning. The speed difference between the two rollers is 20% or, optionally, 30% or 40% for whole crop silage. The new disc conditioner with the larger friction surface works at the same speed and is designed to cope with the high throughputs BiG X is capable of. The corn conditioner is quick and easy to install and remove.

Variable roller gap: The roller gap is adjusted steplessly from the cab via two electric motors in a range from 0.5 mm to 10 mm (0.02″- 0.4″). The operator can see the current setting on the display.

Hard chrome coating: The chrome plated corn conditioner rollers are exceptionally durable and have an extremely long service life. The rollers measure 250 mm in diameter and are studded with 105, 123 or 144 teeth.

A KRONE exclusive

  • Consistent performance with irregular crop flow
  • Extremely smooth running even on uneven swaths
  • Maximize throughputs
  • Top quality chop
  • Extremely user-friendly

Outstanding quality chop even in an uneven crop flow: The spring-loaded chopping drum floor is connected to the anvil of the counterblade at the front. This means that the clearance between the chopping drum floor and the blades is always constant. So any movement of the spring-loaded chopping drum floor to compensate for an uneven crop flow won’t affect the quality of chop.

Consistent throw with a tight crop stream: The spring-loaded backplate on the crop accelerator ensures maximum crop output in all conditions, filling the trailer to perfection.

Adjustable crop throw

  • Crop throw adjusted at the touch of a button from the cab
  • Tight crop stream even with a long crop throw
  • The shorter the crop throw, the less power is needed
  • Fills the trailer accurately with no spillage

Short crop throw: For a short crop throw with the trailer driving alongside, the crop stream leaves the spout at a lower speed. This saves power, which can be used to boost chopping output.

Long crop throw: With the trailer following behind, the crop stream needs to be ejected from the spout at a higher speed. A strong, tight stream is needed to cover the long distance over the tractor to the rear wall of the trailer.

Neat filling – efficient and effective
To avoid spillage while filling the trailer, the crop stream must be tight and the crop throw must be set to the exact distance. The operator can adjust the crop throw from the cab quickly and easily by adjusting a hinged flap in the backplate of the crop accelerator. As the accelerator needs less power with a short crop throw with the flap open, the freed-up engine output can be used for chopping, thus increasing throughput.

Crop accelerator: The paddles are designed for high crop output and guide the crop flow towards the middle.

Adjusting the crop throw distance: The crop throw is controlled via the hinged flap on the backplate of the accelerator. For a short throw, the flap is tilted out of the crop flow, so there is little contact between the crop and the accelerator. For a long throw, the flap is tilted into the crop flow, so there is more contact between the crop and the accelerator.

Joystick control: The crop throw is quick and easy to control with the buttons on the joystick control panel.

In control: Additional control buttons are provided in the control unit for extra convenience.

Stepless electric motor control: The hinged flap on the backplate of the accelerator is adjusted steplessly via an electric servomotor.

Cutting edge

  • EasyFlow pick-up
  • XDisc direct cutting system
  • Variable-row width EasyCollect corn head
  • Suitable for BiG X, quick and easy changeover

Pendulum frame: The sturdy pendulum frame on the BiG X intake system guides the headers securely and safely. The headers are quick and easy to change on the pendulum frame.


  • Camless pick-up
    More output, quieter running, less wear
  • Stepless speed adjustment from the cab
  • EasyFlow speed automatically adjusts to driving speed

Two work widths: Working at widths of 3 or 3.8 m and using six rows of tines 55 m apart, the camless KRONE pick-ups are extremely thorough even when working in high-volume swaths. Depending on the swath width and your working speed, you can vary the speed of the EasyFlow steplessly from the cab. Alternatively, the speed can be automatically matched to your driving speed. EasyFlow 380 is marketed in selected export markets.


The direct cut head

  • 6.2 m work width
  • High throughput, low input
  • KRONE EasyCut disc mower technology – proven the world over
  • KRONE SafeCut: unique protection for mower discs
  • Powerful auger with replaceable Hardox wear plates

Cutting and chopping in one pass: KRONE XDisc is the versatile specialist mowing unit for whole crop silage. It cuts the crop cleanly and without wastage. The huge 900 mm diameter auger makes the BiG X enormously powerful and has no trouble picking up very long, bulky material.

Safe as houses: If the system is suddenly overloaded, instead of the impact being directed fully onto the spur gears on the cutterbar, a roll pin in the sprocket drive shaft shears. A thread on the sprocket drive shaft jacks up the disc, lifting it out of the danger area and above the orbits of the neighbouring discs. SafeCut protects the spur gear driveshaft and the neighbouring discs against damage. The roll pins can be replaced in just a few minutes and cost next to nothing.

SmartCut: Because the mower discs turn in both directions, the individual disc orbits must overlap precisely to ensure a clean cut. Therefore we increased the overlap between those discs that turn outwards – achieving stripeless cuts. In addition, the blades turning to the rear are set further apart to encourage a smooth flow of large volumes of crop.


Boost your efficiency

  • A KRONE exclusive – up to 10.5 m work width
  • Top quality chop, fewer overlength fractions as stalks are fed in lengthwise
  • Simple design reduces power input

Unique wingspan – enormous acreage: Working at widths of up to 10.5 m, BiG X takes the widest variable-row width maize headers in the world. The endless collectors feed the stalks to the middle of the machine, where they are turned through 90° and pulled in lengthwise. Ideal for a top quality chop with fewer overlengths.

Pure power

  • 8 and 12 cylinder MAN engines
  • Transversely mounted V-engine
  • Huge torque, tremendous power
  • Guarantees massive throughputs

V-engine mounted sideways: The engine is mounted sideways for optimum weight distribution. The direct driveline to the crop flow components translates into great fuel economy. Common Rail injection technology makes these MAN V engines extremely fuel-efficient.

Intelligent cooling: To ensure the engine runs in the ideal temperature range, BiG X is equipped with temperature-dependent hydrostatic fan control. When the fan is running slowly, you save fuel and the noise level drops even further.


More grunt, less fuel

  • Great fuel economy
  • Smooth running
  • Extremely powerful, massive torque
  • Extremely economical

BiG X 600: A clear buffalo curve – The MAN V8 engine on the BiG X 600 features a large constant power range and a comfortable torque rise, allowing operators to stay relaxed as conditions vary and freeing them from constantly adjusting the speed. Even when the engine is revving at extremely low speeds it still delivers plenty of grunt.

BiG X 700 / 850 / 1100 PowerSplit: The PowerSplit technology adapts the engine output automatically to the current harvest conditions. Eco Power is used in situations that do not require full engine power whereas X Power delivers the engine‘s maximum speed to succeed in difficult conditions. This technology gives you full flexibility and fuel economy.

BiG X 700, 770: Torque boost – To take the strain off the operator in extremely varying conditions, KRONE offers a torque boosting function for BiG X 700 and BiG X 770. Activate this boost at the touch of a button and you’re perfectly equipped for the toughest conditions. This function also boosts profitability and improves operator comfort. An extensive torque back-up and high engine elasticity ensure maximum operator comfort in extremely variable and tough harvesting conditions.

Stepless control

  • Simple design
  • Chopping drum driven by extra-strong poly V-belts
  • Intake system driven hydraulically
  • Headers driven hydraulically
  • Hydraulic drive shaft

Clever design: The header and intake system are driven via oil pumps. This concept allows the header and intake speeds to be adjusted steplessly – ideal for adjusting automatically to varying harvesting conditions.

Ground drive: Courtesy of a hydro pump flange-mounted on the engine, Big X travels infinitely variably, having its ground speed set either automatically or manually from the cab. The driveline works reliably, guaranteeing maximum safety.

Powering the assemblies: The chopping drum and the accelerator are powered directly by the sideways-mounted engine via a poly V-belt. The accelerator shaft drives the poly V-belt for the corn conditioner on the other side. To reverse the intake system and the header, the poly V-belt to the chopping drum is slackened.

Stepless, strong and nimble

  • Optimum weight distribution Safe on-road travel
  • Hydraulic 4WD: extremely manoeuvrable, 40 km/h
  • Powerful wheel motors from Bosch-Rexroth
  • Traction control with three travel modes
  • ABS and spring-loaded steered axle

Stepless at full throttle: The four-wheel drive Bosch Rexroth wheel motors provide a stepless speed range of 0-25 km/h in the field and 0-40 km/h on the road. The planetary gearboxes ensure smooth and powerful starts and high tractive power.

Cushioned road travel: The steered axle on the BiG X comes with spring suspension as standard to ensure maximum operator comfort.

Traction control with three travel modes: The operator decides which of the three travel modes to use. In grass mode, the forager can be finely tuned to protect the sward. Maize mode allows limited slip, and for on-road travel traction control can be disabled completely.

Tyres with a purpose: There is a choice of tyres available for BiG X. Big tyres ensure maximum ground clearance, low soil pressure and excellent traction.

The ultimate level of comfort

  • Extremely spacious and quiet
  • Maximum sitting and operator comfort
  • Excellent all-round vision

Wider, quieter and brighter: The spacious cab with its narrow posts is spacious and gives the operator the best possible view of wide headers. The double floor keeps noise in the cab to a minimum. Sixteen H9 lights provide perfect illumination, with LED lights available as an option.

Everything within sight: High side windows and slim posts give the operator an unobstructed view of the spout even with filling heights as high as 6 m, making filling trailers safer and more efficient.

Clutter-free The controls for lights, heating and air conditioning are arranged on a panel above the front windscreen. The Follow-Home function lights your way as you get down from the cab. After you switch off for the night, some headlights stay switched on for several minutes, allowing you to find your way safely.

Ergonomic, convenient and easy to use: The ergonomic joystick with user-friendly icons gives the operator fingertip control of multiple machine functions. Designed specifically for BiG X, the slim stick sits comfortably in the hand. With more than 20 programmed functions, it not only controls ground speed and direction of travel but also the header and spout.

Keeping you informed: The big 10” control box records all the machine data and displays it on the high-definition colour screen. Various settings can be changed on it, such as stepless LOC adjustment. The clearly designed control unit next to the seat houses all controls that operate the various machine functions, including ground drive and chopping drum drive.