What are the machines for crushing stones into sand?

Several types of machines can be used to crush stones into sand, including:

1. Jaw crushers:Jaw crushers are primary crushers that are used to crush various hard materials, including stone, into smaller particles. They are often the first step in a crushing circuit and can handle large chunks of stone with a maximum feed size of up to 1.5 meters.

2. Impact crushers: Impact crushers are secondary crushers that are used to further reduce the size of the stone particles generated by jaw crushers. They work on the principle of impact, which causes the stone to break into smaller particles due to the high-speed collision of the stone against the crusher's impact walls.

3. Cone crushers: Cone crushers are used to crush stone into smaller particles with a tertiary crushing stage. They are often used in the aggregate industry to produce sand and gravel for construction purposes.

4. Vertical shaft impactors (VSI): VSI crushers are used to produce high-quality sand and gravel for construction applications. They work by throwing the stone against a hard surface, resulting in a high-speed impact that breaks the stone into smaller particles.

5. Hammer mills: Hammer mills are used to crush stone into sand-like particles. They work by grinding the stone against hammers that are attached to a rotor, resulting in a high-speed impact that breaks the stone into smaller particles.

6. Rotary crushers: Rotary crushers are used to crush stone into smaller particles by passing them through a series of fixed and moving crushers. They are often used in the recycling industry to process construction and demolition waste.

It's important to note that the type of machine you choose will depend on factors such as the feed size, desired output size, and the specific application. Additionally, some machines are more suitable for specific types of stone, so it's essential to consider the properties of the stone you're working with when selecting a crusher.