
rock is crushed in stone crusher africar hirecozaBlake Jaw Crusher Mineral Processing Metallurgy
Crusher Wikipedia A crusher is a machine designed to reduce large rocks into smaller rocks gravel or rock dust The earliest crushers were hand held stones where the weight of the stone provided a boost to muscle power used against a stone anvilThe Blake Jaw crusher frames have been the subject of considerable variety in details of design and have been built of several different materials Originally all frames were of cast iron as was the case with all of the early gyratory machin Then as larger sizes were developed cast steel became the common medium for all large and medium size
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