A world premiere is the debut of the new BiG X 1180, the new Krone flagship which extends the top of the Krone BiG X 680, 780, 880 forager ranges, underlining the company’s long-standing excellence as a manufacturer also of high-capacity forage harvesters.
The extra engine power is generated by the 24.24-lire, 850kW/1165hp Liebherr V12 engine. This makes the Krone Big X not only the world’s most powerful forage harvester but one that scores on very useful engine features. For example, oil, filter and valve service intervals have been extended to 1000 hours and all models in the range are naturally compliant with emission stages V and Tier 4f (relying merely on SCR emission treatment). Also, the BiG X 1180 is available with the Krone lift cab.
Another innovation is the roller conditioner. The OptiMaxx 250 CornConditioner has its teeth slanted at a 5° angle which results in an even higher performance. The slant produces a shearing effect as the teeth condition the material, leading to an intensive treatment not only in axial but also lateral direction.
The new 250mm diameter rollers are available with 105/123 or 123/144 teeth. 105/123 teeth suit medium and long chopping lengths whereas 123/144 teeth are ideal for short and medium chops. The speed differential is 30 per cent or 40 per cent / 50 per cent as an option.
Higher engine power and throughputs require the new flagship BiG X 1180 to use larger-diameter conditioning rollers. Therefore the conditioner’s rollers increased to 305mm in diameter (OptiMaxx305) with teeth slanted at an angle.
These changes lead to a unique shearing effect, increase the friction surface area and the circumferential speed.
As such, the OptiMaxx 305 roller conditioner stands out for an exemplary crop intake and intensive treatment – even in long chops.
As the diameter grows the number of teeth increases as well. To suit all applications, buyers can choose between 125/150 teeth for medium and long chopping lengths and 150/175 teeth for short and medium chopping lengths. The special rollers rotate at different speeds, the difference being 30 per cent or 40 per cent / 50 per cent as an option.
This new roller conditioner design excels also in terms of handling as the new housing rests in massive and easy-to-service bearings. Swapping bearings, rollers and pulleys to alter the speed difference from 30 per cent to 50 per cent is an easy job. Cleaning, too, is straightforward thanks to large service openings.
Equipped with a camera-based 3D image analysis and the automatic EasyLoad filling system, the forager offers convenient filling of trailers that run alongside the harvester.
The system controls the spout automatically (open/close spout flap; rotate spout right/left) and allows operators to select various filling strategies such as ‘front to rear’.
They can also program specific filling levels and the impact point of the crop stream in the wagon – a great boon that reduces operator stress in the heat of harvest. The operator can conveniently monitor all machine functions from the cab.
In the future, the system will also control auto filling into trailers following the harvester.
The feature is currently trialled and will be available soon (also as a retrofit version).