Lemken introduces OptiStone overload protection

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The new OptiStone automatic overload protection for Lemken Juwel, Diamant and Titan ploughs is available from now. How does it work?

At the heart of the OptiStone 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.

When an obstacle is encountered, the new overload element simultaneously deflects up to 37 centimeters upwards and 20 centimeters 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 damage to the plough.

Advantages of OptiStone

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 the three-dimensional bearing points and therefore cannot unhitch, a clear advantage compared to the overload protection systems with four-point suspension. The radial spherical plain bearing is durable, reliable and easily accessible for convenient maintenance.

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