Vertical shaft impact crusher

A Vertical Shaft Impact (VSI) crusher is a type of impact crusher that uses a high-speed rotor to throw materials against a stationary anvil or a bed of rocks, creating high-energy crushing and shaping. These crushers are commonly used for producing high-quality aggregates, particularly in the production of manufactured sand and fine aggregates for construction.

Working Principle:

The VSI crusher operates based on the principle of material acceleration. Raw materials are fed into the crusher from the top, where they are then accelerated by a rapidly spinning rotor. The accelerated particles are thrown against a rock bed or an anvil, resulting in high-velocity impact. This impact causes the material to fracture, breaking into smaller particles. The high-speed rotor provides both crushing and shaping action, making it ideal for producing fine aggregates with a consistent particle shape.

Features and Benefits:

1. Versatility in Application: VSI crushers are highly versatile and are used in a wide range of applications. They can process a variety of materials such as sand, gravel, limestone, basalt, and even harder materials like granite. Their ability to produce high-quality, cubical aggregates makes them ideal for both construction and industrial applications.

2. High-Quality Product: One of the primary advantages of a VSI crusher is the production of high-quality, well-graded materials. The shape of the crushed product is typically more consistent than that produced by other types of crushers, making it ideal for concrete, asphalt, and other construction uses.

3. Energy Efficiency: VSI crushers are known for their energy efficiency compared to other crushers. The design allows for better material acceleration, reducing the amount of energy required for size reduction. The impact action in the crusher ensures that the material is broken into smaller sizes without requiring excessive energy input.

4. Enhanced Product Shape: One of the key features of VSI crushers is their ability to produce finely shaped, angular aggregates. This is especially important in industries where the shape of the aggregate is crucial for high-quality concrete production, as angular aggregates pack better and have improved bonding characteristics.

5. Adjustable Discharge Size: Many VSI crushers offer the ability to adjust the size of the final product. This is achieved by adjusting the rotor speed, feed rate, or the position of the anvil. These adjustments give operators control over the output, which is particularly important in operations requiring specific material gradations.

Specifications – Technical Data