The rotary tedder is not a bottleneck in the process chain, but in addition to the mowing technology, it is a central working machine in terms of feed quality in connection with feed contamination, crumbling losses and the drying process in general. Technical differences such as height guidance by gauge wheels, rotor inclination, rotor diameter, number of rotor arms per rotor and tine shapes can have a negative or positive influence on the work pattern, the drying process, crumbling losses and feed contamination.

In order to be able to provide satisfactory practical answers in this context, BAL Gumpenstein, together with the Dachstein-Tauern machine ring and agricultural businesses, is carrying out a practical test with 5 to 7 different rotary tedders suitable for slopes. The quality of work on the slope, forage contamination, crumbling losses and the drying process are recorded in addition to general technical quality characteristics. The examinations are carried out at the first cut of silage and hay.

The results are compared with other experiences and observations from other practical companies using a questionnaire and published in a practical magazine or made available to farmers for information via the BAL homepage.