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The Agronomic Benefits of using Tungsten Carbide

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The Agronomic Benefits of using Tungsten Carbide

Applying Tungsten Carbide in key areas protects the shape and design of the part, ensuring optimum performance throughout its entire life.

On a component without Tungsten Carbide, the edges wear becoming rounded and more likely to smear and compress the soil when running through it. This compressive, smearing action of a worn part acts on the soil at depth. Often this is at the ‘problem depth’ when soil loosening, or the key seedbed depth, critical for early crop emergence and essential root growth when cultivating. In either situation, smearing at this depth creates a barrier for root growth, water and air movement. These barriers created by smearing are worsened when soil is damp, effective water and air movement is vital for crop establishment and growth. These barriers can also create localised flooding which even when temporary will reduce plant growth and yield potential.

These diagrams show how the crop suffers when in compacted ground. The one on the left is suffering as it is unable to establish root growth and lacks oxygen and water. The crop on the right is doing well as it has room to grow and sufficient air and water movement.

In most cases with non Tungsten Carbide parts, wear life is improved by making leading edges thicker, the thought being that they will last longer before the part loses its length and lifting effect. However, this bulkier part will wear to a more severely rounded edge, further increasing the smearing.

Using Tungsten Carbide eliminates smearing, it enables the part to cut through the soil rather than compressing it, relieving compaction and giving drainage directly where it is needed. The self-sharpening property of Tungsten Carbide ensures the cutting edge will never round off, keeping its shape and high performance for the duration of its life.

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