KRONE VariStream is a new, variable and automatic crop flow control system on Big X precision-chop foragers that adapts the cross section of the crop flow as the volume varies.
To do that, the innovative and mechanical system adjusts the base plate of the chopping cylinder. This plate is attached to the cylinder's shear bar and is automatically readjusted after knife grinding and shear bar repositioning.
The opposite end of the base plate mounts on springs to respond to variations in the volume of crop as it flows through the system, for example when harvesting uneven grass swaths. Once the load peak has passed the chopping area, the original position of the base plate is restored with the help of pressure springs.
The blower, too, mounts on a spring-loaded plate, which adjusts relative to the current crop volume in this area.
The VariStream system offers the advantage of maintaining the high output levels of the blower and chopping cylinder while substantially reducing the risk of blockages thanks to providing a uniform crop flow.
The new system, for which Krone has filed a patent, is the first on the market that controls automatically the cross section of the crop flow on a Big X. It frees operators from setting and adjusting the machine manually to match varying conditions.
VariStream offers a range of further benefits besides optimising the flow of crops. These include a substantially quieter machine running in varying volumes of crop, reduced fuel consumption and wear as well as full machine utilisation in all conditions. Above all, the system makes for a substantial increase in grass throughput.

For more information visit: www.krone-uk.com.