KUHN Launches Centrifugal Fertiliser Spreader For Precision Agriculture

KUHN has introduced the AXIS 25 centrifugal fertiliser spreader to optimize nutrient management workflows across the agricultural sector. The implement incorporates redesigned drop-point mechanics and electronic metering systems to balance high mass discharge with uniform field-scale nutrient distribution across varying ground speeds.

Spreading Capacity and Mass Flow Dynamics
The implement accommodates hopper configurations up to 3,500 liters and achieves a maximum fertilizer discharge rate of 675 kg/min. This flow capacity stems from a revised outlet geometry expanded by more than 30 percent relative to earlier models, allowing commercial farming operations to sustain elevated forward speeds without starving target application curves.

Discharge calibration relies on the proprietary Coaxial Distribution Adjustment (CDA) system, which features an extended drop-point adjustment range of 20 degrees. Using a single pair of spreading discs, the mechanism shifts the release location of granular products along the vane profile to maintain coefficient-of-variation thresholds across varying particle densities. The spreader reaches working widths of 36 meters for granular urea and 42 meters for denser compounds such as ammonium nitrate.

Metering Architectures and Electronic Control Options
KUHN distributes the implement in three distinct operational architectures to match tractor hydraulic and telematics capabilities:

Section Control and Boundary Management Upgrades
Field boundary management utilizes the VARISPREAD 18 section control architecture, which segments the operational width into 18 independent sections through continuous application rate and drop-point adjustments to prevent over-application in wedges and irregular headlands.

Boundary spreading utilizes two deflector configurations: the TELIMAT X deflector adjusts spreading trajectories near field perimeters to align with yield optimization or environmental buffer zone regulations, while the GSE X deflector provides selective placement for bed-based market gardening crops to eliminate wasted inputs across tractor wheel tracks. Operational support hardware includes an integrated folding access ladder, multi-position hopper cover, handling transit wheels, and focused field-illumination lighting arrays.

Additional Context:
This section details technical specifications and competitive benchmarking not included in the original product announcement

Centrifugal fertiliser application equipment operates under European standard EN 13739, which evaluates transversal distribution uniformity and coefficient of variation (CV) limits, where a CV below 15 percent represents standard field performance and below 10 percent indicates high precision.

In the European agricultural machinery market, competitive benchmarking centers on comparable high-capacity dual-disc machines including the Amazone ZA-V / ZA-TS series and the Rauch AXIS / AGT platform, with which KUHN shares historical mechanical patents. The Amazone ZA-TS utilizes radar-based mass flow tracking (ArgusTwin) and on-the-fly angle adjustment up to 54 meters, operating at discharge rates up to 650 kg/min via electric shutter motors. Kverneland’s Exacta TL GEOspread platform benchmarks against this category using four weighing cells with a reference sensor operating at 54-meter widths with 1-meter section increments.

KUHN’s reliance on disc torque measurement via magnetostrictive or hydraulic sensors for rate correction provides an operational alternative to gravimetric load-cell reliance, as disc resistance monitoring remains unaffected by hillside tilt angles and dynamic slope bouncing that can distort instantaneous load-cell readings during high-speed field transit.

Edited by Natania Lyngdoh, Induportals editor, assisted by AI.

www.kuhn.com