Cone crusher and sand making machine are the main crushing equipment in the sand and gravel production line. They are often used in the second and third stages of crushing, and undertake the function of medium and fine crushing.

Cone crushers include single-cylinder hydraulic cone crushers, multi-cylinder hydraulic cone crushers, and spring cone crushers. Compared with spring systems, hydraulic cone crushers are more * in terms of increased output, improved grain shape, and convenience in operation and maintenance. At present, the application in the gravel production line is becoming more and more common.

Different from impact crusher which is suitable for soft rock crushing, cone crusher is mainly suitable for crushing hard stones such as granite, basalt, tuff, river pebbles, and metal ores such as iron ore, copper ore, gold ore. When making a production line configuration plan, we need to select the appropriate secondary crushing equipment according to the hardness of the raw material, so as to avoid the serious wear, jamming, and collapse of the machine caused by the hard raw material in the later production, which will affect the smooth progress of production.

Sand making machine is also known as sand making machine, and there are different types such as vertical shaft impact crusher and double roller crusher. Among them, the vertical shaft impact crusher is currently the * commonly used sand making equipment in the sand and gravel production line. It adopts the principle of "rock hitting rock" and "rock hitting iron". It can be used as stone shaping equipment and sand making equipment. It is usually used in cone After crushing or impact crushing, the stones are further broken into machine-made sand.

Compared with sand making equipment such as roller crusher, impact crusher has strong crushing capacity and can process all kinds of hard stones. The finished sand grains are round and full, and the grading is good. It is a sand making equipment that can give consideration to both output and product quality.

In addition to the cone crusher and sand making machine, a complete sand and gravel production line also needs the * crushing equipment - jaw crusher, which undertakes the function of coarse crushing, and can directly crush the large stones mined from the mountain into medium-sized, for the secondary crushing prepare for.

In addition, in addition to the main crusher equipment, vibrating feeders, vibrating screens, belt conveyors, sand washing machines and other equipment are also necessary equipment for the sand and gravel production line. They undertake auxiliary functions. Each equipment has its own function and performs its duties. , and jointly complete the sand and gravel production operations of the entire production line. It is necessary to select the machine type and configure the scheme according to the actual production situation.