To turn stones into gravel, feeders, crushers, screening machines, and transportation systems are probably needed.

1. Feeding system: The feeder is the key equipment for feeding in the production line, and it is mainly responsible for conveying large stones to the crusher. In the feeding system, vibrating feeders are more commonly used. By adjusting its parameters, the conveying flow rate of large stones can be accurately controlled to ensure that the stones can be fed into the crusher continuously and evenly. In addition, some feeding systems are also equipped with humidification devices to humidify the stones during transportation, thereby effectively reducing dust generation and playing a dust prevention role.

2. Crushing system: The crushing system is the core of the entire production line, and usually adopts a two-stage crushing process. In the crushing process, the jaw crusher is first used to carry out the initial crushing of large stones to crush the large stones into relatively small stones. After the initial crushing is completed, according to actual needs, a cone crusher or impact crusher is selected for medium and fine crushing, and the stones are further crushed into a particle size that meets the requirements of subsequent production, laying the foundation for the stable operation and efficient production of the entire production line.

3. Screening system: The screening system generally uses a circular vibrating screen, which can be screened first and then broken, or broken first and then screened. Its function is to screen the stone for subsequent processing.

4. Transportation system: In addition to the above-mentioned mechanical equipment, a complete production line cannot be without the support of a conveyor belt, which connects various equipment to enable the production to proceed in an orderly manner. Here, a dust cover can be added to the conveyor belt to achieve environmentally friendly production.