The longwall is a machine that has the ability to remove large volumes of coal in a single pass. The length of the pass can be 200 - 300m long. It consist of a few key elements;

Chocks - support the roof of the longwall area. Shearer - cuts the coal through its rotating drums. Armoured face conveyor (AFC) - directs the coal to the end of the pan line, where it is transported on conveyors to the surface.

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