Combine concave: what it is and when to replace it

Understand the concave role in the threshing system and the signs of advanced wear.

Wear signs in the threshing system

The concave works with the rotor or cylinder to separate grain without compromising harvest quality.

Irregular wear, cracks, deformation and increased losses are warning signs.

Replacing it at the right time prevents overload in other components and improves threshing efficiency.

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