Simplicity of use

The CHALLENGER range can be optionally equipped with an adjustable hydraulic offset that can be adjusted from the driver’s seat and able to suit all tyre spacings. This option makes it possible to adapt easily to the contours of the field and the power available. The wide range of offset offers the possibility of retracting the first body in more difficult conditions. It is also possible to work on-land.
The articulation of the frame (optional hydraulics) ensures perfect ground following with automatic locking when exiting the furrow. When exiting the line, while the front bodies are raised, the rear bodies remain in the soil at the chosen working depth. Zigzags in the headlands are reduced for better comfort and optimal ploughing quality.
The transport suspension protects the plough and the tractor by means of an hydro-pneumatic damper providing suspension of the whole.
The adjustments on the CHALLENGER are performed tool-free to save you time.

Adaptation to the different types of soil

KUHN offers two safety devices for its CHALLENGER semi-mounted ploughs:

• NSH Non-Stop Hydraulic Safety device: The pressure on the body varies according to depth, speed, working width, condition and nature of the soil. Adjusting the release pressure, without mechanical intervention, prevents stones from resurfacing and avoids the bodies jumping. The increasing or decreasing release pressures of the Non-Stop Hydraulic safety device ensures an instant return to the soil. With the NSH safety device, the parts are fully protected, and no maintenance is required.
• The Safe-T safety device: clear breakage by traction bolt occurs after a force at the tip of 4700 kg. This avoids frequent activations of the safety device. Even after many releases, no deformation of the structure is visible. The breakage of the safety bolt remains clean and clear and changing the bolt is simple and fast.