Jaw Crusher, Cone Crusher, Impact Crusher, Which Crusher Is Better?

1. Jaw Crusher

Jaw crusher is often used for coarse crushing, suitable for various ores with compressive strength not higher than 320MPa, such as river pebbles, granite, basalt, iron ore, etc. Large stones below 1m2 can be fed directly. When working, the motor drives the eccentric shaft to rotate through the pulley, so that the movable jaw plate approaches and leaves the fixed jaw plate periodically, thereby squeezing, grinding, rubbing and other multi-impact crushing of the material. The finished product is 5-20 cm gravel, which is generally used in the first step of the sand production line.

2. Cone Crusher

Cone crusher is mainly used for medium and fine crushing, with feed less than 30 cm, and is often used to crush 12 and 13 specifications of stones, suitable for medium and high hardness materials, such as basalt, granite, etc. During operation, the cone crusher moves in a rotating pendulum motion driven by the eccentric sleeve, driving the material between the crushing wall and the mortar wall to be squeezed and rubbed. According to the lamination theory, the material is subjected to forces in multiple directions, crushed and polished according to its own texture, and the stone particle size that meets the requirements is produced.

3. Impact Crusher

The impact crusher and the cone crusher are both two-stage crushers. The difference is that the impact crusher is suitable for materials with a compressive strength of no more than 350MPa and a soft hardness, such as limestone, concrete blocks, etc., and feed less than 50 cm. During operation, the rotor rotates at high speed, and the material enters the plate hammer action area, collides with the plate hammer on the rotor and is crushed, and then is thrown onto the impact device and crushed again, and then bounces back from the impact liner to the plate hammer action area and is crushed again. This process is repeated until the material is crushed to the required particle size. In addition, the gap between the impact frame and the rotor can be adjusted to change the material’s discharge particle size and shape.

4. Vertical ShaftImpact Crusher

Vertical shaft impact crusher is often used to make machine-made sand below 5mm, and the feed requirement is below 5cm. If the raw material is relatively large, a coarse crushing device is required in front. The vertical shaft impact crusher combines “stone hitting stone” and “stone hitting iron”, and is suitable for a variety of materials such as basalt, river pebbles, bluestone, etc. Stone hitting stone is mainly used for material shaping, and the sand grains are better, but the powder content is higher. Stone hitting iron aims to provide a large crushing ratio, with high crushing efficiency, and is mainly used for sand making.

When choosing a crusher, it is necessary to consider the specific needs (such as material characteristics, output requirements, finished product particle size, etc.) comprehensively.