Summary：Granite is a commonly used raw material for producing aggregates, with Mohs hardness 6-7, hard texture, stable properties, compression resistance, corrosion resistance, low water absorption, and good quality.

Granite is a commonly used raw material for producing aggregates, with Mohs hardness 6-7, hard texture, stable properties, compression resistance, corrosion resistance, low water absorption, and good quality.

Why is granite hard to crush? And what kind of stone crusher we should adopt to crush granite?

Why Is Granite Hard To Crush?

Among the mineral particles that make up granite, 90% are feldspar and quartz, which are very hard. These two minerals are even difficult to swipe with a steel knife. This makes granite very hard. The density of granite is very high, and its mineral particles are tight and embedded with each other, and the porosity is only 1%, which makes granite strong in compressive capacity and difficult to crush.

What Kind Of Stone Crusher We Should Adopt To Crush Granite?

To process granite into aggregates, we need two stage of crushing process: coarse crushing and medium& fine crushing. Stone crushers in this production process are jaw crusher and cone crusher.

Jaw crusher

Granite jaw crusher has strong crushing force and large crushing ratio. The max feeding size of jaw crusher can reach 1200mm and the discharge size is 40-100mm. the max capacity of granite jaw crusher can reach to 2200t/h. Besides, jaw crusher has even particle shape and convenient to adjust the discharge opening.

Cone crusher

Cone crusher is a kind of medium and fine crushing equipment particularly designed for raw materials with high hardness. Granite cone crusher has high crushing efficiency and adopts laminated crushing principle, making the final products have good particle shape. In cone crusher, there is hydraulic protection system to ensure the smooth operation of the equipment, and the wearing parts are made of high wear-resistant materials. Granite cone crusher has a single cylinder, multi-cylinder, full hydraulic cavity type, can meet different production needs.

300t/H Granite Crushing Plant Configuration

Capacity: 300t/h

Feeding size: ≤800mm

Products size: 0-5mm（artificial sand）， 5-10-20mm

Equipment configuration: ZSW600×130 vibrating feeder, PE900×1200 jaw crusher, 3Y3072 vibrating screen, HPT300C1 cone crusher, belt conveyor

Advantages of the crushing plant:

In the crushing plant, the stone crusher adopts jaw crusher+ cone crusher combination. The entire production line has reasonable layout, smooth and stable operation, and high efficiency. Except for the replacement of wearing parts, it is almost trouble-free. The final products have good shape and high quality and can be sold at high price.