Which type of sand making machine has a good effect on finely crushing shale?

Shale is a kind of soft rock with a high content of clay minerals, and it is relatively easy to crush. Among the various types of sand making machines, the hammer crusher and the vertical shaft impact crusher (VSI) have a good effect on finely crushing shale.

1. Hammer Crusher: This machine is suitable for crushing medium-hardness materials like shale. The working principle of the hammer crusher is that the hammers rotate at high speed, striking the material and breaking it into smaller particles. The hammer crusher has a relatively simple structure, easy maintenance, and can produce relatively fine particles.

2. Vertical Shaft Impact Crusher (VSI): This type of crusher is widely used in the sand making industry and is highly effective for fine crushing of soft rocks like shale. The VSI crusher works by rotating the impeller at high speed, which throws the material against the inner wall of the crushing chamber, resulting in high-energy impact crushing. The VSI crusher can produce a wide range of particle sizes, with a finer output than the hammer crusher.

However, it is essential to consider the specific production requirements and working conditions when choosing a sand making machine. The hammer crusher is more suitable for coarse-medium crushing, while the VSI crusher is better for fine crushing. Moreover, the VSI crusher is generally more expensive than the hammer crusher, and its energy consumption is also higher. It's essential to weigh the pros and cons and select the most suitable machine for your specific needs.