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What are carbide inserts for shredding machines?

Publication date:

2025-11-10

Author:

Source:

What are carbide inserts for shredding machines?

The Carbide pins are small Hard inserts made from tungsten carbide (WC), welded or fixed to the agitator or rotor shaft inside a ball mill or grinding chamber. They are positioned along the arms or discs of the agitator to enhance energy transfer to the grinding media (balls).

Function in shredding machines

In a pin-type ball mill, the rotor is equipped with multiple carbide pins. As the rotor spins:

The carbide pins They agitate the grinding balls at high speed.

This movement generates intense impact and shear forces, breaking down the suspension particles.

The hardness of tungsten carbide ensures a long service life and consistent crushing performance, even with abrasive materials.

Applications

It is used in the high-performance grinding or dispersion of:

Pigments and paints.

Ceramics and minerals.

Battery materials (such as cathodic/anodic sludges).

Pharmaceutical products.

Inks and coatings.

Advantages

Longer lifespan compared to steel or ceramic pins.
It maintains the efficiency and consistency of grinding.
Reduce product contamination (critical for high-purity materials).

Variants

Carbide pins are available in different:

Shapes: cylindrical, conical, or custom geometries.

Sizes: depending on the mill size and energy requirements.

Mounting styles: welded, threaded, or press-fitted onto the rotor.

On the previous page:

What is a tungsten carbide blade for gear cutting?

What are tungsten carbide pins?

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