Commercial mixing station aggregates are typically made from materials such as limestone, granite, and basalt. These materials have high quality, resulting in good-quality finished products.
The requirements for commercial concrete station aggregates involve grading. Grade 1 matching uses one type of stone, Grade 2 matching uses two types of stones, and Grade 3 matching uses three types of stones. The grading also considers particle size. For Grade 1, stone sizes range from 1.0cm to 2.0cm. For Grade 2, it includes 50% of stones ranging from 1.0cm to 2.0cm and 50% of stones ranging from 2.0cm to 4.0cm. For Grade 3, it consists of 30% of stones ranging from 1.0cm to 2.0cm, 30% of stones ranging from 2.0cm to 4.0cm, and the remaining 40% using stones of 4.0cm to 8.0cm in size.
The choice between using a cone crusher or an impact crusher for processing mixed stone materials depends on the hardness of the materials. Impact crushers are suitable for softer materials like limestone, as they are cost-effective and produce good particle shapes. On the other hand, cone crushers are suitable for harder materials like granite, basalt, and pebbles, as they require higher wear resistance. It's important to consider product requirements, budget, power consumption, and other relevant factors when selecting the appropriate equipment, in addition to material hardness.