White's Farm Supply
Krone Big M 450 for sale at White's Farm Supply

Double tap to zoom

Krone Big M 450 for sale at White's Farm Supply

BiG M Mower Conditioner Big M 450

With the BiG M 450, KRONE presents another upgrade of its self-propelled mower. Offering huge work width, superior maneuverability, optimum weight distribution and tapping into enormous power reserves, BiG M 450 is the perfect mower for large and small fields, for flat and hilly land and for the most difficult soil con... + Read More



The mowers

  • Direct drive through Powerbands and driveshafts
  • Stepless and hydraulic cutting height control
  • Front mower with optional auto sideshift relative to the current steering angle
  • DuoGrip centre-of-gravity suspension on the side mowers

The innovative KRONE BiG M 450 driveline allows operators to achieve work rates of more than 17 hectares per hour. The power flows from the axially mounted engine down the powerbands and driveshafts and directly to the three mowers. And superior operator comfort comes from hydraulic cutting height control from the cab and fully hydraulic ground pressure control.


The EasyCut cutterbar

  • Fully welded and permanently lubricated HeavyDuty cutterbar
  • SafeCut shear-pin protection for each individual disc
  • Satellite driveline smooths the power flow inside the cutterbar
  • SmartCut system ensures a perfect cut
  • Added protection from wear

The BiG M 450 sources its super sturdy disc mowers in HeavyDuty specification from the well-proven EasyCut range. The power flow enters the mower from the rear through the gearbox and flows down a driveline of massive and quiet-running spur gears that drive the satellite gears and the discs. KRONE SmartCut implements a generous overlap of those discs that turn away from each other, which translates into a perfect cut. Meanwhile, the SafeCut system protects the blade from damage caused by hitting an object.


The CV tine conditioners

  • High-performance conditioners for haulm crops
  • Full-width conditioning
  • V-type steel tines for intensive and gentle treatment
  • Conditioning intensity is altered without tools

The KRONE CV conditioner ensures fast and uniform wilts at high throughputs. The conditioning intensity is set by selecting a rotor speed (700 rpm or 1,000 rpm) and by tool-free adjustment of the gap between the rotor and the baffle plate.


The swath mergers

  • Augers with fingertip-controlled hoods
  • Augers ensure a clean and gentle crop feed
  • Crops hardly touch the ground – minimum contamination
  • Perfect swath presentation for the following harvesters

Cutting, conditioning and producing one single swath – BiG M 450 completes three tasks in one operation. With the augers forming an integral part of the side mowers, they deposit the material on the swath that was formed by the front mower without the material touching the ground at all, staying very clean and reducing a pass in the harvest chain.


The ground drive and running gear

  • Infinitely variable power transmission via wheel motors
  • Reduced 1250 engine rpm in road travel for better fuel economy and ride comfort
  • Hydro-pneumatic axle suspension for high operator comfort
  • Hydraulic axle height control adjusts ground clearance to conditions

Wheel motors bring the power steplessly on the ground and make BiG M 450 fantastically easy to steer and maneuver. The axles boast hydro-pneumatic suspension for ultimate operator comfort and hydraulic height control, so that operators can flexibly adjust the ground clearance of the machine in field work and for road travel at reduced transport height.


The engine

  • 6-cylinder, 449 hp LIEBHERR engine, Emission Stage V compliant
  • Long 1000-hour service intervals
  • Extremely fuel-efficient thanks to PowerSplit engine control
  • Mounted on silent blocks and therefore quiet running
  • Large radiator with passive rotor for optimum temperature control

The 449 hp Liebherr engine features automatic engine control which tailors the output to the current load on the mowers. Consequently, BiG M 450 will use less fuel in lower-yield crops. A new load limit control system monitors the engine speed and reduces the ground speed when engine speed is very low. Mounted on silent blocks, the engine runs very quietly in all situations.


The cab

  • Large window screens offer perfect all-round visibility
  • Maximum seating and operator comfort
  • 8-inch or 12-inch terminal with colour-display touch screen
  • Optional LED package for maximum lighting
  • Modern armrest with integral joystick

Mounted on hydro bearings, the SilentSpace cab is particularly quiet, offers plenty of space and an ergonomically designed environment. In standard specification, the machine has the high-resolution 8-inch or 12-inch touch screen terminal where operators set up and monitor all machine functions. Further standard features are the multifunction joystick in the armrest, automatic climate control and the electric cooling box. More comfort is available from the optional LED package or the Premium comfort seat. 


Model BiG M 450 CV BiG M 450 CR (NEW)
Engine model Liebherr D946 A7-05 Liebherr D946 A7-05
No. of cylinders 6 6
Engine capacity                                   Litres 12  12
Max. output to ECE R120 and 1650 rpm 330/449 kW/hp 330/449 kW/hp
Max. output to ECE R24 and 1650 rpm 310/422 kW/hp 310/422 kW/hp
Rated speed                                           rpm 1650  1650 
Fuel tank capacity                                Litres 780 780
Traction drive    
Model Infinitely variable hydrostatic drive via wheel motors Infinitely variable hydrostatic drive via wheel motors
Work rate                                            km/h Max. 25 (15, 53 mph)  Max. 25 (15, 53 mph) 
Transport speed                                   km/h 40 (max. 24, 86 mph) (at 1250 rpm) 40 (max. 24, 86 mph) (at 1250 rpm)
4WD Standard option
Traction Control Standard Standard
Steering angle                                 Degrees 53  53 
Rear axle steering yes yes
Front/rear axle suspension hydro-pneumatic hydro-pneumatic
No. of mowers 3 3
Work width                                               m 9.90 (32'6") 9.90 (32'6")
Conditioner speed                                  rpm 700/1,000 700/1,000
Conditioner model V-type steel tines V-type steel tines
No. of discs 6 / side mower 5/ front mower 6 / side mower 5/ front mower
No. of top hats 2 / side mower 2/ front mower 2 / side mower 2/ front mower
Blade attachment Quick-fit Quick-fit
Air seat Standard Standard
Helper seat Standard Standard
Climatronic with cooling box Standard Standard
In-cab information system Standard Standard
Overall dimensions    
Transport width                                         m 3.00 (9'10") 3.00 (9'10")
Transport length                                        m 8.45 (27'9")  8.45 (27'9") 
Transport height                                        m 4.00 (13'2")  4.00 (13'2") 
Weight depending on specification               t 15.5  15.5 
Weight distribution front/rear axle              % 64 / 36 64 / 36
Front: Mitas AC 70 N 800/65 R 32 Standard Standard
Rear: Mitas AC 65 600/65 R28 Standard Standard
Front: Vredestein Flotation Trac 800/60 R 32 Option Option
Rear: Vredestein Flotation Trac 600/60 R 30.5 Option Option