Rock hardness is generally measured by Mohs hardness, which measures how easy it is to scratch the surface of a rock, or how resistant it is to wear.

Rocks are classified into hard rock, soft rock, and medium-hard rock according to their hardness (Mohs hardness 1 to 10).

Hard rock has a hardness range of 6 – 10 and is mainly used for construction purposes. Common hard rocks are granite, basalt, quartzite, gabbro, and river pebbles.

So what crusher is suitable for crushing hard rock? Below I will introduce you to the best crusher for hard rock.

 

Jaw crusher is suitable for the primary crushing stage, especially for large boulders and very hard rocks. Jaw crusher is sturdy in design, high in output, and can handle very large rock sizes. 

Jaw crusher applied materials: limestone, pebble, calcite, granite, quartz, concrete, dolomite, bluestone, iron ore, coal gangue, construction waste, ferrosilicon, basalt, sandstone, rocks, ore, glass, cement clinker and some metal.

 

 

 

Cone crusher is suitable for secondary, tertiary, and quaternary crushing stages, suitable for medium-hard and hard rocks, and cone crusher can be configured with different types of crushing chambers to match the hardness of the material.

 

 

 

Impact crusher can handle medium to hard rock materials, and if used for very hard and easily abrasive materials, the wear cost will be high. So impact crusher is not suitable for materials that are too hard.

 

 

 

If fine particle size is required, cone crusher is usually the first choice. If larger, coarser particles are required, jaw crusher can be selected.

Choosing the suitable crusher for your work is essential, if you don't know how to choose the best crusher, you can contact us to get a free inquiry, we are professional crushing equipment factory and pleased to serve you!