“Blinding” is typically caused by moisture or static energy in which a particle (or particles) adheres to the screen media. “Pegging” is caused when particles are stuck or wedged in between the wires of the screen media.

The McLanahan MD vibratory screen has screen decks at progressively steeper angles, and employs larger screen opening sizes than the actual size separation. This by itself reduces the potential for material to cause pegging.

However, screens with slotted openings can further reduce the potential for pegging because they offer more screen surface area, and the shape of the opening reduces the potential for a particle to get “wedged” inside the opening created by the four wires.

Three ways to assist with clearing screen surfaces from a build-up of material include:

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