12-13 aggregate refers to single-grade crushed stone of specific specifications, with 12 aggregate having a particle size ranging from 10 to 20 millimetres, while 13 aggregate measures between 16 and 31.5 millimetres. These two aggregates play a vital role in construction projects, being extensively used in roadbed foundations to enhance stability. They also serve as key materials in formulating high-strength cement concrete, ensuring robust and durable structures.

Learn more about aggregate production equipment

Crushing equipment is required to reduce raw aggregate to the desired particle size. Commonly used crushers include impact crushers and cone crushers.

Impact Crushers

Impact crushers (abbreviated as impact crushers) offer advantages including simple construction, relatively low investment costs, and suitability for processing medium-hardness materials. It achieves crushing through the collision of high-speed rotating rotors with the material, offering stable operation and relatively low energy consumption. However, impact crushers often perform poorly with highly hard aggregates, as their crushing principle limits efficiency on such materials. When processing high-hardness aggregates, alternative crushing equipment such as cone crushers may be required to achieve better results.

Cone Crusher

The cone crusher is a commonly employed crushing apparatus. Its advantage lies in its superior performance when processing high-hardness aggregates, though it entails a higher investment cost.

Crushing equipment is indispensable for processing 12-13 aggregate. When selecting crushing machinery, considerations must be based on material hardness, particle size requirements, and other specifications. Both impact crushers and cone crushers are well-suited for this aggregate type, though the specific choice ultimately depends on the particular operational context.