Rock crushers are not a one-size-fits-all solution for all stones. They are mainly classified according to the hardness of rocks.

  For hard rocks such as granite and basalt (Mohs hardness ≥ 6), they feature dense structure and high toughness, making them difficult to crush. A jaw crusher is usually adopted for primary crushing, followed by a cone crusher for fine crushing. It realizes efficient crushing via mutual extrusion between rocks while protecting the equipment.

  For medium-hard rocks like limestone and marble (Mohs hardness 3-5), they are the main raw materials for construction aggregates. With high brittleness, these rocks are suitable for impact crushing by impact crushers. It delivers high efficiency and produces cubic aggregates with perfect particle shape.

As for soft rocks such as coal and gypsum (Mohs hardness ≤ 2.5), they can be easily processed by hammer crushers, which have a simple structure and large crushing ratio. The ideal fineness can be achieved in a single crushing process.

  With rich experience in the crushing and screening industry, Shanghai Dongmeng provides turnkey projects covering equipment selection to production line configuration, ensuring efficient operation of your projects.