A blast filmed at Tarmac Buxton quarry.
Limestone is brought from the quarry and tipped by the trucks into a large primary crusher. The primary crusher works on the gyratory principle and is capable of crushing up to 3,000 tonnes an hour.
A complex series of conveyor belts then carry the partly crushed rock to the secondary crushing unit which further reduces the stone and it is then screened into a wide range of different sizes from 125mm kiln stone down to dust.
See more on www.tarmac.co.uk
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