Cirrus Grand trailed cultivator drill

In general, the materials metered from both hopper chambers are sown by the same conveying system using the single-shoot process. If e.g. fertiliser is also to be applied with the seed, the Cirrus-C offers the option of metering two different materials. As a result, either two crops or one seed type and one fertiliser type are embedded in the seed furrow using the single-shoot system. 

The metering system is suitable for all seeds and seed rates from 1.5 to 400 kg/ha. Metering cassettes with a high capacity mean that they have low peripheral speeds and thus protect the seed from damage. Conversion from fine seeds to normal seeds is carried out in seconds by exchanging the metering cassettes. They can even be changed when the seed hopper is full. The metering cassettes supplied as standard cover up to 95 % of all seed types. Additional cassettes are available, for instance, for maize or specialist crops. 

The new distributor head provides excellent lateral distribution. The single row shut-off ensures high sustainability via a reduction in the use of seed and fertiliser. The distributor head can be easily tailored to any symmetrical and asymmetrical tramline systems, as well as track widths and tyre widths via the ISOBUS terminal, in order to create a tramline. Mechanical intervention is not required. Since the supply hoses to the outer coulters are longer than the inner ones, time-delayed opening and closing (V compensation) of the individual row shut-off reduces additional overlaps on the headland. When starting, the rows are initially supplied with seed from the outside to the inside, and from the inside to the outside during the shutting-off process.

The benefits: 

• Very low level of overlap for vigorous crop development in overlap zones 
• Reduction in the use of inputs due to the single row shut-off

The individual row shut-off of the Cirrus Grand offers the perfect solution to prevent over-sowing in headlands and wedge-shaped fields. Each row can be separately switched on or off. The rotational speed of the metering units is automatically adjusted to the number of open flaps. Extremely vigorous crops develop as a result of the spot-accurate shut-off, especially in the overlap zones, since no areas are double sown. Overlaps are restricted to less than 1 % of the area with this system.