LEMKEN has added the new OptiStone automatic overload protection feature to its Juwel, Diamant and Titan ploughs.
At the heart of the set-up is a closed system of highly stable leg plates, which is reliably protected against dirt and foreign objects. A newly designed swivel bracket ensures high lateral tripping forces and optimal plough control in stony soils.
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When an obstacle is encountered, the new overload element simultaneously deflects up to 37cm upwards and 20cm to the side. This provides for a sufficiently large range of deflection to ensure consistently disruption-free work, even with deep ploughing.
The tripping forces can be continuously adjusted from the comfort of the driver’s seat to adapt to changing soil conditions. If the system catches below a slab of stone or roots, it is additionally protected by a double-cut shear bolt to prevent any damage to the plough.
The OptiStone overload protection features high-strength radial spherical plain bearings to keep the plough bodies stable as the system deflects. The plough bodies are firmly connected to three-dimensional bearing points and therefore cannot unhitch – a clear advantage compared to the overload protection systems with four-point suspension commonly found on the market.
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